Hobbit problem with bbtest
Hello everybody, Since 7 month I use hobbit to observe the availability of our VSE, VM and Linux systems running on the z9. The hobbit-server 4.2.0 is running in sles10 sp2. Everything worked well until last friday. In the Current Staus screen the icons for bbd, bbtest, http and the complete conn column changed from green to purple (no report). After a system reboot everything seems to be ok again because all icons were green. But after some time the problem was back, the icons for bbd, bbtest, http and the complete conn column changed from green to purple (no report). When I log on to hobbit and run 'bbtest-net' manually all purple icons change to green except the bbtest icon (still purple). After a while the already mentioned icon will change to purple again. So it looks to me that bbtest-net will not restart after the interval of 600 sec. But why ? I cannot see any errormessage. There is enough space in the filesystem. My colleagues promissed me, that they have nothing changed. I have no idea what happended. Every hint is appreciated. kind regards Horst Rempel -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: s390 repositories for RHEL
Erling Ringen Elvsrud wrote: Hello list, I need a few packages that is not included in RHEL. First and foremost Puppet and dependencies which is at least ruby-rpm and ruby-shadow if I remember correctly. I have not found any s390 packages in the well known repositories like EPEL, rpmforge or dag. Do you know any repositories that contain s390 binary packages for RHEL? I could build them myself from the EPEL srpms, but if binary packages (from a reasonable source) exists I prefer to use that. Interestingly (maybe not for you), SLES-11 has a puppet rpm: Name: puppet Relocations: (not relocatable) Version : 0.24.5Vendor: SUSE LINUX Products GmbH, Nuernberg, Germany Release : 5.6 Build Date: Wed 25 Feb 2009 18:11:34 CET Install Date: (not installed) Build Host: s390z18 Group : Productivity/Networking/System Source RPM: puppet-0.24.5-5.6.src.rpm Size: 1624845 License: GPL v2 or later Signature : RSA/8, Wed 25 Feb 2009 18:11:38 CET, Key ID e3a5c360307e3d54 Packager: http://bugs.opensuse.org URL : http://reductivelabs.com/projects/puppet/ Summary : A network tool for managing many disparate systems Description : Puppet lets you centrally manage every important aspect of your system using a cross-platform specification language that manages all the separate elements normally aggregated in different files, like users, cron jobs, and hosts, along with obviously discrete elements like packages, services, and files. Distribution: SUSE Linux Enterprise 11 Name: puppet-serverRelocations: (not relocatable) Version : 0.24.5Vendor: SUSE LINUX Products GmbH, Nuernberg, Germany Release : 5.6 Build Date: Wed 25 Feb 2009 18:11:34 CET Install Date: (not installed) Build Host: s390z18 Group : Productivity/Networking/System Source RPM: puppet-0.24.5-5.6.src.rpm Size: 22708License: GPL v2 or later Signature : RSA/8, Wed 25 Feb 2009 18:11:38 CET, Key ID e3a5c360307e3d54 Packager: http://bugs.opensuse.org URL : http://reductivelabs.com/projects/puppet/ Summary : A network tool for managing many disparate systems Description : Puppet lets you centrally manage every important aspect of your system using a cross-platform specification language that manages all the separate elements normally aggregated in different files, like users, cron jobs, and hosts, along with obviously discrete elements like packages, services, and files. Distribution: SUSE Linux Enterprise 11 mark -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
s390 repositories for RHEL
Hello list, I need a few packages that is not included in RHEL. First and foremost Puppet and dependencies which is at least ruby-rpm and ruby-shadow if I remember correctly. I have not found any s390 packages in the well known repositories like EPEL, rpmforge or dag. Do you know any repositories that contain s390 binary packages for RHEL? I could build them myself from the EPEL srpms, but if binary packages (from a reasonable source) exists I prefer to use that. Best regards, Erling Ringen Elvsrud -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Hobbit problem with bbtest
Horst, If you also notice that the graphs aren't accumulating any data then the filesystem may be out of inodes. Issue df -i to check. I will run into this problem occasionally, even though the filesystem looks good otherwise. The Hobbit mailing list and archive will also be a good source for debugging this. I might suggest taking this question there. Rempel, Horst wrote: Hello everybody, Since 7 month I use hobbit to observe the availability of our VSE, VM and Linux systems running on the z9. The hobbit-server 4.2.0 is running in sles10 sp2. Everything worked well until last friday. In the Current Staus screen the icons for bbd, bbtest, http and the complete conn column changed from green to purple (no report). After a system reboot everything seems to be ok again because all icons were green. But after some time the problem was back, the icons for bbd, bbtest, http and the complete conn column changed from green to purple (no report). When I log on to hobbit and run 'bbtest-net' manually all purple icons change to green except the bbtest icon (still purple). After a while the already mentioned icon will change to purple again. So it looks to me that bbtest-net will not restart after the interval of 600 sec. But why ? I cannot see any errormessage. There is enough space in the filesystem. My colleagues promissed me, that they have nothing changed. I have no idea what happended. Every hint is appreciated. kind regards Horst Rempel -- Rich Smrcina Phone: 414-491-6001 http://www.linkedin.com/in/richsmrcina Catch the WAVV! http://www.wavv.org WAVV 2009 - Orlando, FL - May 15-19, 2009 -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
AW: Hobbit problem with bbtest
Hello Rich, when I do df -i I see that there are a lot of free inodes. lx100:~ # df -i FilesystemInodes IUsed IFree IUse% Mounted on /dev/dasda1 1313285995 1253335% / udev 30862 303 305591% /dev /dev/mapper/system-lvhome 262144 99 2620451% /home /dev/mapper/system-lvopt 524288 30895 4933936% /opt /dev/mapper/system-lvsrv 131072 72 1310001% /srv /dev/mapper/system-lvtmp 262144 34 2621101% /tmp /dev/mapper/system-lvusr 524288 63293 460995 13% /usr /dev/mapper/system-lvvar 262144 17067 2450777% /var /dev/mapper/data-lvdata1 35974402774 35946661% /srv/data So this is not the problem. I will subscribe to hobbit mailing list tomorrow. Thank you. kind regards Horst -Ursprüngliche Nachricht- Von: Linux on 390 Port [mailto:linux-...@vm.marist.edu] Im Auftrag von Rich Smrcina Gesendet: Mittwoch, 1. April 2009 13:44 An: LINUX-390@VM.MARIST.EDU Betreff: Re: Hobbit problem with bbtest Horst, If you also notice that the graphs aren't accumulating any data then the filesystem may be out of inodes. Issue df -i to check. I will run into this problem occasionally, even though the filesystem looks good otherwise. The Hobbit mailing list and archive will also be a good source for debugging this. I might suggest taking this question there. Rempel, Horst wrote: Hello everybody, Since 7 month I use hobbit to observe the availability of our VSE, VM and Linux systems running on the z9. The hobbit-server 4.2.0 is running in sles10 sp2. Everything worked well until last friday. In the Current Staus screen the icons for bbd, bbtest, http and the complete conn column changed from green to purple (no report). After a system reboot everything seems to be ok again because all icons were green. But after some time the problem was back, the icons for bbd, bbtest, http and the complete conn column changed from green to purple (no report). When I log on to hobbit and run 'bbtest-net' manually all purple icons change to green except the bbtest icon (still purple). After a while the already mentioned icon will change to purple again. So it looks to me that bbtest-net will not restart after the interval of 600 sec. But why ? I cannot see any errormessage. There is enough space in the filesystem. My colleagues promissed me, that they have nothing changed. I have no idea what happended. Every hint is appreciated. kind regards Horst Rempel -- Rich Smrcina Phone: 414-491-6001 http://www.linkedin.com/in/richsmrcina Catch the WAVV! http://www.wavv.org WAVV 2009 - Orlando, FL - May 15-19, 2009 -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Formatting 3390-9 problem with RedHat
Suddenly this morning I'm having trouble formatting a 3390-9 in compatibility mode. After formatting the device under VM with cpfmtxa and examining the vtoc with IEHLIST, it is as expected, it tells me there is a permanent I/O error. Attaching the device to a guest and formatting with: dasdfmt -v -b 4096 -d cdl -f /dev/dasdg -l ncial5 Retrieving disk geometry... Drive Geometry: 10017 Cylinders * 15 Heads = 150255 Tracks I am going to format the device /dev/dasdg in the following way: Device number of device : 0x204 Labelling device: yes Disk label : VOL1 Disk identifier : NCIAL5 Extent start (trk no) : 0 Extent end (trk no) : 150254 Compatible Disk Layout : yes Blocksize : 4096 --- ATTENTION! --- All data of that device will be lost. Type yes to continue, no will leave the disk untouched: yes Formatting the device. This may take a while (get yourself a coffee). Detaching the device... Invalidate first track... formatting tracks complete... Revalidate first track... Re-accessing the device... Finished formatting the device. Retrieving dasd information... ok Writing empty bootstrap... Writing label... Writing VTOC... ok Rereading the partition table... ok Re-examining the vtoc I now see valid allocation which from experience tells me a volume restore will not result in a valid volume. I've used these procedures maybe 100 times. Any ideas? Bobby Bauer Center for Information Technology National Institutes of Health Bethesda, MD 20892-5628 301-594-7474 -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Formatting 3390-9 problem with RedHat
Are you dedicating/attaching volumes to this guest? If they are minidisks, then you've been given full pack minidisks which include cylinder 0 (note the 10017 size) .. and Linux is formatting the dasd label.. If they are dedicated volumes - then I'm not sure how it's going to act from a z/VM point of view in terms of a valid VTOC. Scott On Wed, Apr 1, 2009 at 7:40 AM, Bauer, Bobby (NIH/CIT) [E] baue...@mail.nih.gov wrote: Suddenly this morning I'm having trouble formatting a 3390-9 in compatibility mode. After formatting the device under VM with cpfmtxa and examining the vtoc with IEHLIST, it is as expected, it tells me there is a permanent I/O error. Attaching the device to a guest and formatting with: dasdfmt -v -b 4096 -d cdl -f /dev/dasdg -l ncial5 Retrieving disk geometry... Drive Geometry: 10017 Cylinders * 15 Heads = 150255 Tracks I am going to format the device /dev/dasdg in the following way: Device number of device : 0x204 Labelling device: yes Disk label : VOL1 Disk identifier : NCIAL5 Extent start (trk no) : 0 Extent end (trk no) : 150254 Compatible Disk Layout : yes Blocksize : 4096 --- ATTENTION! --- All data of that device will be lost. Type yes to continue, no will leave the disk untouched: yes Formatting the device. This may take a while (get yourself a coffee). Detaching the device... Invalidate first track... formatting tracks complete... Revalidate first track... Re-accessing the device... Finished formatting the device. Retrieving dasd information... ok Writing empty bootstrap... Writing label... Writing VTOC... ok Rereading the partition table... ok Re-examining the vtoc I now see valid allocation which from experience tells me a volume restore will not result in a valid volume. I've used these procedures maybe 100 times. Any ideas? Bobby Bauer Center for Information Technology National Institutes of Health Bethesda, MD 20892-5628 301-594-7474 -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Formatting 3390-9 problem with RedHat
The devices are attached, full volume minidisk. As I understand it, yes, Linux is changing the label but it has never exhibited this behavior of changing the layout of the vtoc. Saying that would imply maybe some maintenance has changed the behavior. Bobby Bauer Center for Information Technology National Institutes of Health Bethesda, MD 20892-5628 301-594-7474 -Original Message- From: Linux on 390 Port [mailto:linux-...@vm.marist.edu] On Behalf Of Scott Rohling Sent: Wednesday, April 01, 2009 9:51 AM To: LINUX-390@VM.MARIST.EDU Subject: Re: Formatting 3390-9 problem with RedHat Are you dedicating/attaching volumes to this guest? If they are minidisks, then you've been given full pack minidisks which include cylinder 0 (note the 10017 size) .. and Linux is formatting the dasd label.. If they are dedicated volumes - then I'm not sure how it's going to act from a z/VM point of view in terms of a valid VTOC. Scott On Wed, Apr 1, 2009 at 7:40 AM, Bauer, Bobby (NIH/CIT) [E] baue...@mail.nih.gov wrote: Suddenly this morning I'm having trouble formatting a 3390-9 in compatibility mode. After formatting the device under VM with cpfmtxa and examining the vtoc with IEHLIST, it is as expected, it tells me there is a permanent I/O error. Attaching the device to a guest and formatting with: dasdfmt -v -b 4096 -d cdl -f /dev/dasdg -l ncial5 Retrieving disk geometry... Drive Geometry: 10017 Cylinders * 15 Heads = 150255 Tracks I am going to format the device /dev/dasdg in the following way: Device number of device : 0x204 Labelling device: yes Disk label : VOL1 Disk identifier : NCIAL5 Extent start (trk no) : 0 Extent end (trk no) : 150254 Compatible Disk Layout : yes Blocksize : 4096 --- ATTENTION! --- All data of that device will be lost. Type yes to continue, no will leave the disk untouched: yes Formatting the device. This may take a while (get yourself a coffee). Detaching the device... Invalidate first track... formatting tracks complete... Revalidate first track... Re-accessing the device... Finished formatting the device. Retrieving dasd information... ok Writing empty bootstrap... Writing label... Writing VTOC... ok Rereading the partition table... ok Re-examining the vtoc I now see valid allocation which from experience tells me a volume restore will not result in a valid volume. I've used these procedures maybe 100 times. Any ideas? Bobby Bauer Center for Information Technology National Institutes of Health Bethesda, MD 20892-5628 301-594-7474 -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Formatting 3390-9 problem with RedHat
On Wednesday, 04/01/2009 at 09:56 EDT, Scott Rohling scott.rohl...@gmail.com wrote: Are you dedicating/attaching volumes to this guest? If they are minidisks, then you've been given full pack minidisks which include cylinder 0 (note the 10017 size) .. and Linux is formatting the dasd label.. If they are dedicated volumes - then I'm not sure how it's going to act from a z/VM point of view in terms of a valid VTOC. z/VM doesn't care about the VTOC. All we care about is the volser. CPFMTXA places a VTOC on a volume simply to keep z/OS a z/VSE from allocating datasets on the volume (and it is part of a VOL1 standard label). The interesting part of Bobby's post is: After formatting the device under VM with cpfmtxa and examining the vtoc with IEHLIST, it is as expected, it tells me there is a permanent I/O error. Bobby: It isn't clear to me what is telling you there is a permanent I/O error. IEHLIST? Linux? What was the I/O error? Alan Altmark z/VM Development IBM Endicott -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Formatting 3390-9 problem with RedHat
The message comes from IEHLIST IEH108I REQUEST TERMINATED --- PERMANENT I/O ERROR WHILE READING DATA SET Bobby Bauer Center for Information Technology National Institutes of Health Bethesda, MD 20892-5628 301-594-7474 -Original Message- From: Linux on 390 Port [mailto:linux-...@vm.marist.edu] On Behalf Of Alan Altmark Sent: Wednesday, April 01, 2009 11:25 AM To: LINUX-390@VM.MARIST.EDU Subject: Re: Formatting 3390-9 problem with RedHat On Wednesday, 04/01/2009 at 09:56 EDT, Scott Rohling scott.rohl...@gmail.com wrote: Are you dedicating/attaching volumes to this guest? If they are minidisks, then you've been given full pack minidisks which include cylinder 0 (note the 10017 size) .. and Linux is formatting the dasd label.. If they are dedicated volumes - then I'm not sure how it's going to act from a z/VM point of view in terms of a valid VTOC. z/VM doesn't care about the VTOC. All we care about is the volser. CPFMTXA places a VTOC on a volume simply to keep z/OS a z/VSE from allocating datasets on the volume (and it is part of a VOL1 standard label). The interesting part of Bobby's post is: After formatting the device under VM with cpfmtxa and examining the vtoc with IEHLIST, it is as expected, it tells me there is a permanent I/O error. Bobby: It isn't clear to me what is telling you there is a permanent I/O error. IEHLIST? Linux? What was the I/O error? Alan Altmark z/VM Development IBM Endicott -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Formatting 3390-9 problem with RedHat
I think you need to also run fdasd to create the partition(s). For example, fdasd -a /dev/dasdg will create 1 partition for the whole disk. On Wed, Apr 1, 2009 at 9:40 AM, Bauer, Bobby (NIH/CIT) [E] baue...@mail.nih.gov wrote: Suddenly this morning I'm having trouble formatting a 3390-9 in compatibility mode. After formatting the device under VM with cpfmtxa and examining the vtoc with IEHLIST, it is as expected, it tells me there is a permanent I/O error. Attaching the device to a guest and formatting with: dasdfmt -v -b 4096 -d cdl -f /dev/dasdg -l ncial5 Retrieving disk geometry... Drive Geometry: 10017 Cylinders * 15 Heads = 150255 Tracks I am going to format the device /dev/dasdg in the following way: Device number of device : 0x204 Labelling device : yes Disk label : VOL1 Disk identifier : NCIAL5 Extent start (trk no) : 0 Extent end (trk no) : 150254 Compatible Disk Layout : yes Blocksize : 4096 --- ATTENTION! --- All data of that device will be lost. Type yes to continue, no will leave the disk untouched: yes Formatting the device. This may take a while (get yourself a coffee). Detaching the device... Invalidate first track... formatting tracks complete... Revalidate first track... Re-accessing the device... Finished formatting the device. Retrieving dasd information... ok Writing empty bootstrap... Writing label... Writing VTOC... ok Rereading the partition table... ok Re-examining the vtoc I now see valid allocation which from experience tells me a volume restore will not result in a valid volume. I've used these procedures maybe 100 times. Any ideas? Bobby Bauer Center for Information Technology National Institutes of Health Bethesda, MD 20892-5628 301-594-7474 -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- Bruce Hayden Linux on System z Advanced Technical Support IBM, Endicott, NY -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Solaris v. Linux
This may be a well-worn topic here, and if so I apologize... What about GPL-licensed code using proprietary (closed) instructions and hipervisor features (DIAG, etc)? Aren't micro/millicode and zVM hipervisor vectors the new OCO with respect to Linux and Solaris on z? I can guess what RMS would say, but IMO kernel modules that use closed instructions should be considered non-free. This would have nasty implications. Kirk Wolf Dovetailed Technologies http://dovetail.com On Tue, Mar 31, 2009 at 9:24 PM, John Summerfield deb...@herakles.homelinux.org wrote: However, sometimes licence conflicts determine what can be done. GPL-licence code cannot be mixed with code released under other licences - any that keep source code secret for starters. It is not open to Oracle to incorporate code from bash into Oracle. It's not permissible to alter the Linux kernel and release the result without source code, and companies have been sued sucessfully for this violation. Ask Dlink. Its also possible for a licence to prohibit release of source code. MS owns large parts of OS/2. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.htmlhttp://www.catb.org/%7Eesr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Formatting 3390-9 problem with RedHat
Problem resolved. I didn't follow my procedures. I evidently forgot to do a DIRECTXA command under VM and when I attached the volume to Linux it saw tracks 0 thru 10016. The VM directory only presents tracks 1 thru 10016. Bobby Bauer Center for Information Technology National Institutes of Health Bethesda, MD 20892-5628 301-594-7474 -Original Message- From: Linux on 390 Port [mailto:linux-...@vm.marist.edu] On Behalf Of Scott Rohling Sent: Wednesday, April 01, 2009 9:51 AM To: LINUX-390@VM.MARIST.EDU Subject: Re: Formatting 3390-9 problem with RedHat Are you dedicating/attaching volumes to this guest? If they are minidisks, then you've been given full pack minidisks which include cylinder 0 (note the 10017 size) .. and Linux is formatting the dasd label.. If they are dedicated volumes - then I'm not sure how it's going to act from a z/VM point of view in terms of a valid VTOC. Scott On Wed, Apr 1, 2009 at 7:40 AM, Bauer, Bobby (NIH/CIT) [E] baue...@mail.nih.gov wrote: Suddenly this morning I'm having trouble formatting a 3390-9 in compatibility mode. After formatting the device under VM with cpfmtxa and examining the vtoc with IEHLIST, it is as expected, it tells me there is a permanent I/O error. Attaching the device to a guest and formatting with: dasdfmt -v -b 4096 -d cdl -f /dev/dasdg -l ncial5 Retrieving disk geometry... Drive Geometry: 10017 Cylinders * 15 Heads = 150255 Tracks I am going to format the device /dev/dasdg in the following way: Device number of device : 0x204 Labelling device: yes Disk label : VOL1 Disk identifier : NCIAL5 Extent start (trk no) : 0 Extent end (trk no) : 150254 Compatible Disk Layout : yes Blocksize : 4096 --- ATTENTION! --- All data of that device will be lost. Type yes to continue, no will leave the disk untouched: yes Formatting the device. This may take a while (get yourself a coffee). Detaching the device... Invalidate first track... formatting tracks complete... Revalidate first track... Re-accessing the device... Finished formatting the device. Retrieving dasd information... ok Writing empty bootstrap... Writing label... Writing VTOC... ok Rereading the partition table... ok Re-examining the vtoc I now see valid allocation which from experience tells me a volume restore will not result in a valid volume. I've used these procedures maybe 100 times. Any ideas? Bobby Bauer Center for Information Technology National Institutes of Health Bethesda, MD 20892-5628 301-594-7474 -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Solaris v. Linux
On 4/1/09 11:36 AM, Kirk Wolf k...@dovetail.com wrote: What about GPL-licensed code using proprietary (closed) instructions and hipervisor features (DIAG, etc)? Aren't micro/millicode and zVM hipervisor vectors the new OCO with respect to Linux and Solaris on z? Thus the complete lack of comments in the QDIO code in Linux and the minimal formatting. Just this side of closed-source. -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: SUSE on Native LPAR
I have made no progress. I do the initial load from the HMC and all is well. I specify NFS and point to a Linux desktop via IP address. On the desktop I have /sles10sp1/cd1 (..cd2; ..cd3; ..cd4)and I have started the NFS Server and exported /sles10sp1. All that I can get is an error = -1 in return. I have tried both with punch a hole in the firewall and without with the results being identical. I have looked in /var/log but do not see anything that makes any sense to me. Do I need to export the sub-directories? I actually did this a year ago but the install never completed because of insufficient memory on our z890. The memory issue is resolved but I can't seem to get the install going again. I would appreciate any advice (but please remember that I am a Linux novice and do not understand all of the jargon). Thanks, .Larry -Original Message- From: Linux on 390 Port [mailto:linux-...@vm.marist.edu] On Behalf Of Ceruti, Gerard G Sent: Thursday, March 26, 2009 6:16 AM To: LINUX-390@VM.MARIST.EDU Subject: Re: SUSE on Native LPAR Hi Martin This is how I have done all my installs, initial boot off the HMC CD, then point to an NFS server ( SuSE PC) I have not been unable to get FTP work, but NFS works great, check the NFS exports are all defined correctly, Have you checked /var/log/messages on the PC for any error messages. The only other problem I had was with the IP address of the zLinux system, it had to have the same subnet at the first router it connected to. Regards Gerard Ceruti may the 'z' be with you -Original Message- From: Linux on 390 Port [mailto:linux-...@vm.marist.edu] On Behalf Of Martin, Larry D Sent: 25 March 2009 20:53 To: LINUX-390@VM.MARIST.EDU Subject: SUSE on Native LPAR I am very new to Linux and am trying to install Linux on an LAPR on a z9BC. I can load the initial Kernel by putting the CD (CD1) into the CD-ROM drive on the HMC and perform a Lad from CD. After setting up the network the Linux kernel wants to read the rest of CD1. If I tell him to use the HMC CD-ROM the response is Unable to load (not an exact quote). I have tried to use NFS on a desktop which has SUSE 10 installed (about a year ago). I get a error saying the request was rejected error = -1. I have also tried using SMB to point to the CD reader on my Windows desktop and get the same response as above (both of these take a few minutes to return). Can someone who has done this give me an idea as to what I am doing wrong? Thanks, .Larry Ps. Small shop - no money - VM not an option. Larry D. Martin Mainframe Systems Support Office of Information Technology and Communications 301.883.7335 .. This E-mail and any of its attachments may contain Prince George's County Government or Prince George's County 7th Judicial Circuit Court proprietary information, which is privileged and confidential. This E-mail is intended solely for the use of the individual or entity to which it is addressed. If you are not the intended recipient of this E-mail, you are hereby notified that any dissemination, distribution, copying, or action taken in relation to the contents of and attachments to this E-mail is strictly prohibited and may be unlawful. If you have received this E-mail in error, please notify the sender immediately and permanently delete the original and any copy of this E-mail and any printout. _ Standard Bank email Disclaimer and confidentiality note This e-mail, its attachments and any rights attaching hereto are, unless the content clearly indicates otherwise, the property of Standard Bank Group Limited and its subsidiaries. It is confidential, private and intended for only the addressee. Should you not be the addressee and receive this e-mail by mistake, kindly notify the sender, and delete this e-mail immediately. Do not disclose or use it in any way. Views and opinions expressed in this e-mail are those of the sender unless clearly stated as those of Standard Bank Group. Standard Bank Group accepts no liability for any loss or damages howsoever incurred, or suffered, resulting, or arising, from the use of this email or its attachments. Standard Bank Group does not warrant the integrity of this e-mail nor that it is free of errors, viruses, interception or interference. Licensed divisions of the Standard Bank Group are authorised financial services providers in terms of the Financial Advisory and Intermediary Services Act, No 37 of 2002 (FAIS). For information about the Standard Bank Group visit our website http://www.standardbank.com
Re: Solaris v. Linux
It is rather curious that IBM is being so territorial in this regard. It would be extraordinarily difficult to break into the system Z clone market, I would think. People are, I get the impression, largely stuck with IBM unless they completely change the way in which they operate their mainframe. This is obviously restricted by the fact that we're by and large talking about high volume production servers that can't afford to be brought offline for any length of time, short of some major disaster. It does seem very much as though one hand giveth whilst the other hand taketh away. Erik Johnson On Wed, Apr 1, 2009 at 11:55 AM, David Boyes dbo...@sinenomine.net wrote: On 4/1/09 11:36 AM, Kirk Wolf k...@dovetail.com wrote: What about GPL-licensed code using proprietary (closed) instructions and hipervisor features (DIAG, etc)? Aren't micro/millicode and zVM hipervisor vectors the new OCO with respect to Linux and Solaris on z? Thus the complete lack of comments in the QDIO code in Linux and the minimal formatting. Just this side of closed-source. -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Solaris v. Linux
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Kirk Wolf wrote: This may be a well-worn topic here, and if so I apologize... What about GPL-licensed code using proprietary (closed) instructions and hipervisor features (DIAG, etc)? Aren't micro/millicode and zVM hipervisor vectors the new OCO with respect to Linux and Solaris on z? I am not a lawyer, but: It seems to me that the key question is the derivative work concept of copyright law that the GPL bases itself on. I note that these features are cleanly separated from Linux and it's drivers (E.g. other z/VM guests running OpenSolaris or CMS or MVS or z/OS could use them, they're in published API's, made by completely separate groups of people, etc etc). Ergo, I'd guess that they'd be pretty clearly pass the no derivative works test, and thus any court or GPL fanatic would admit there's no license issues. Similarly, if this was a problem, then any fully proprietary CPU instruction set and machine architecture would have a pretty hard time having linux drivers written for it. Linux pretty clearly wouldn't even exist, in that case. - -- Pat -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (Darwin) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAknTsOMACgkQNObCqA8uBswZMwCfR0hKc1m900ah51Rel1vU4JxY UvIAn3dF0Xsl8Ix+pLpT+oL46aUH+1jh =7rdT -END PGP SIGNATURE- -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Solaris v. Linux
On 4/1/09 2:14 PM, Erik N Johnson e...@uptownmilitia.com wrote: It is rather curious that IBM is being so territorial in this regard. It would be extraordinarily difficult to break into the system Z clone market, I would think. Not really. The PSI suit is a good example of how simple it could be, at least at the low end. You could fairly easily manufacture 600+ MIP System z emulated systems these days at a dramatically better price point than the z10BC -- if you could figure out how to avoid the MIRV lawyer launch response from Somers and POK. Wrt to guarding patents and proprietary stuff, they (IBM) are actually pretty lenient as such companies go. If they have patents on valuable technologies, they have to pursue them if they want to keep them. Thus they don't make it easy to reverse engineer their stuff, and they make it legally risky to try. It continually astonishes me that they haven't obliterated the Hercules guys yet -- the Herc guys are in an enormous very-dark-grey area wrt to reverse engineering a number of IBM patents on System z technology. I think that kind of action would be enormously counterproductive for IBM in that it would waste a lot of good will in the community they've built up due to liberal patent use policies, but that's not my decision. Let's take this one offline. It really isn't Linux related any more. -- db -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: SUSE on Native LPAR
Russell, I have installed FileZilla on my PC. Can you be more detailed about how the connection is made - from both sides? Thanks, Larry -Original Message- From: Linux on 390 Port [mailto:linux-...@vm.marist.edu] On Behalf Of Jones, Russell Sent: Wednesday, March 25, 2009 3:00 PM To: LINUX-390@VM.MARIST.EDU Subject: Re: SUSE on Native LPAR I copied the install files to my PC and ran an ftp server on my PC to complete the install. I used a freebe ftp server called FileZilla. Russell Jones ANPAC System Programmer -Original Message- From: Linux on 390 Port [mailto:linux-...@vm.marist.edu] On Behalf Of Martin, Larry D Sent: Wednesday, March 25, 2009 1:53 PM To: LINUX-390@VM.MARIST.EDU Subject: SUSE on Native LPAR I am very new to Linux and am trying to install Linux on an LAPR on a z9BC. I can load the initial Kernel by putting the CD (CD1) into the CD-ROM drive on the HMC and perform a Lad from CD. After setting up the network the Linux kernel wants to read the rest of CD1. If I tell him to use the HMC CD-ROM the response is Unable to load (not an exact quote). I have tried to use NFS on a desktop which has SUSE 10 installed (about a year ago). I get a error saying the request was rejected error = -1. I have also tried using SMB to point to the CD reader on my Windows desktop and get the same response as above (both of these take a few minutes to return). Can someone who has done this give me an idea as to what I am doing wrong? Thanks, .Larry Ps. Small shop - no money - VM not an option. Larry D. Martin Mainframe Systems Support Office of Information Technology and Communications 301.883.7335 .. This E-mail and any of its attachments may contain Prince George's County Government or Prince George's County 7th Judicial Circuit Court proprietary information, which is privileged and confidential. This E-mail is intended solely for the use of the individual or entity to which it is addressed. If you are not the intended recipient of this E-mail, you are hereby notified that any dissemination, distribution, copying, or action taken in relation to the contents of and attachments to this E-mail is strictly prohibited and may be unlawful. If you have received this E-mail in error, please notify the sender immediately and permanently delete the original and any copy of this E-mail and any printout. -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 .. This E-mail and any of its attachments may contain Prince George’s County Government or Prince George's County 7th Judicial Circuit Court proprietary information, which is privileged and confidential. This E-mail is intended solely for the use of the individual or entity to which it is addressed. If you are not the intended recipient of this E-mail, you are hereby notified that any dissemination, distribution, copying, or action taken in relation to the contents of and attachments to this E-mail is strictly prohibited and may be unlawful. If you have received this E-mail in error, please notify the sender immediately and permanently delete the original and any copy of this E-mail and any printout.
swappiness drop_caches ?
Good afternoon all, Just wondering if anyone has some input (good, bad, warnings ...) or has had to used the following two items we are running VM5.4 and RHEL4.x and 5.x sles 9 and 10 systems 1) Setting swappiness to other than the default of 60 ? Echo nn /proc/sys/vm/swappiness 2) dropping caches ? Echo 1 or 2 or 3 /proc/sys/vm/drop_caches Thanks, Paul -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: swappiness drop_caches ?
On Wed, Apr 1, 2009 at 9:20 PM, Ayer, Paul W pwa...@statestreet.com wrote: Good afternoon all, Just wondering if anyone has some input (good, bad, warnings ...) or has had to used the following two items we are running VM5.4 and RHEL4.x and 5.x sles 9 and 10 systems 1) Setting swappiness to other than the default of 60 ? Echo nn /proc/sys/vm/swappiness This really is a desktop thingy but may turn out useful for us as well. It defines an amount of page cache to retain even when that means Linux would need to swap things. You would want it large enough to hold relevant program binaries and shared libraries, etc. The nasty part is that it is expressed as a percentage of total memory resources rather than a fixed amount. So you need to come up with a right setting each time you change the virtual machine size. In theory, for largish virtual machines you would want to lower the swappiness. However, when the application does shared memory that lives in page cache (for example the Oracle SGA) then you want to make sure you also leave room for that. Setting it too low will not leave room for the good stuff. 2) dropping caches ? Echo 1 or 2 or 3 /proc/sys/vm/drop_caches The Linux server died when the customer tried this. I told him it should return after completion, but did not in 5 minutes. Does that count as bad? ;-) Obviously, if it works well then this is just temporary relief. Linux will immediately start to load stuff in page cache again. The other problem is that z/VM is not aware that the pages have been freed and will be re-used, so they will still be backed by z/VM real page frames or paging space. And by just touching and re-arrange of the pages you may actually make things worse. Instead, you could use CMM-1 and inflate the balloon by the amount that you want to drop from the cache. It will use the same criteria to select pages, but this time it *will* tell z/VM to drop the corresponding real storage. Although the amount may be a bit harder to determine, the advantage is that you don't disturb the usage patterns of the portion that you want to retain. Rob -- Rob van der Heij Velocity Software http://www.velocitysoftware.com/ -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
NFS--z/OS--VM/Linux
Anyone having problems with VM/Linus using NFS to z/OS 1.9... Only seems to work if I turn security off on z/OS... the Linux mvslogin hangs -- Email Disclaimer This E-mail contains confidential information belonging to the sender, which may be legally privileged information. This information is intended only for the use of the individual or entity addressed above. If you are not the intended recipient, or an employee or agent responsible for delivering it to the intended recipient, you are hereby notified that any disclosure, copying, distribution, or the taking of any action in reliance on the contents of the E-mail or attached files is strictly prohibited. -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: swappiness drop_caches ?
For swappiness it seems that it would be set by each system and what they are doing from what I am reading.. For the cache I have found that you MUST enter the command sync first then it all works fine and a free display shows lower after .. without entering the sync command first they system just hangs up ... very true ... Thanks, Paul -Original Message- From: Linux on 390 Port [mailto:linux-...@vm.marist.edu] On Behalf Of Rob van der Heij Sent: Wednesday, April 01, 2009 3:43 PM To: LINUX-390@VM.MARIST.EDU Subject: Re: swappiness drop_caches ? On Wed, Apr 1, 2009 at 9:20 PM, Ayer, Paul W pwa...@statestreet.com wrote: Good afternoon all, Just wondering if anyone has some input (good, bad, warnings ...) or has had to used the following two items we are running VM5.4 and RHEL4.x and 5.x sles 9 and 10 systems 1) Setting swappiness to other than the default of 60 ? Echo nn /proc/sys/vm/swappiness This really is a desktop thingy but may turn out useful for us as well. It defines an amount of page cache to retain even when that means Linux would need to swap things. You would want it large enough to hold relevant program binaries and shared libraries, etc. The nasty part is that it is expressed as a percentage of total memory resources rather than a fixed amount. So you need to come up with a right setting each time you change the virtual machine size. In theory, for largish virtual machines you would want to lower the swappiness. However, when the application does shared memory that lives in page cache (for example the Oracle SGA) then you want to make sure you also leave room for that. Setting it too low will not leave room for the good stuff. 2) dropping caches ? Echo 1 or 2 or 3 /proc/sys/vm/drop_caches The Linux server died when the customer tried this. I told him it should return after completion, but did not in 5 minutes. Does that count as bad? ;-) Obviously, if it works well then this is just temporary relief. Linux will immediately start to load stuff in page cache again. The other problem is that z/VM is not aware that the pages have been freed and will be re-used, so they will still be backed by z/VM real page frames or paging space. And by just touching and re-arrange of the pages you may actually make things worse. Instead, you could use CMM-1 and inflate the balloon by the amount that you want to drop from the cache. It will use the same criteria to select pages, but this time it *will* tell z/VM to drop the corresponding real storage. Although the amount may be a bit harder to determine, the advantage is that you don't disturb the usage patterns of the portion that you want to retain. Rob -- Rob van der Heij Velocity Software http://www.velocitysoftware.com/ -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: swappiness drop_caches ?
We found that with the default vm.swapiness setting of 60, our biggest production WAS app would slowly fill up all of his swap space, run out after 5 days or so, and crash. Setting it to 20 made that problem go away . With 20, it doesn't even creep up at all, or even use much if any. Why this happened has yet to be explained (and we had problems opened with both IBM and Novell), but because of that, we are leaving it to 20 as the default on all server builds. Seems like 60=bug to me, but oh well! We're happy at 20. Marcy This message may contain confidential and/or privileged information. If you are not the addressee or authorized to receive this for the addressee, you must not use, copy, disclose, or take any action based on this message or any information herein. If you have received this message in error, please advise the sender immediately by reply e-mail and delete this message. Thank you for your cooperation. -Original Message- From: Linux on 390 Port [mailto:linux-...@vm.marist.edu] On Behalf Of Ayer, Paul W Sent: Wednesday, April 01, 2009 12:20 PM To: LINUX-390@VM.MARIST.EDU Subject: [LINUX-390] swappiness drop_caches ? Good afternoon all, Just wondering if anyone has some input (good, bad, warnings ...) or has had to used the following two items we are running VM5.4 and RHEL4.x and 5.x sles 9 and 10 systems 1) Setting swappiness to other than the default of 60 ? Echo nn /proc/sys/vm/swappiness 2) dropping caches ? Echo 1 or 2 or 3 /proc/sys/vm/drop_caches Thanks, Paul -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: swappiness drop_caches ?
On Apr 1, 2009, at 1:32 PM, Marcy Cortes wrote: We found that with the default vm.swapiness setting of 60, our biggest production WAS app would slowly fill up all of his swap space, run out after 5 days or so, and crash. Setting it to 20 made that problem go away . I'm pretty unhappy with the way Linux has been managing memory, especially w/rt the block caches being allowed to page out process data. I was hopeful that we could affect some semblance of sane behavior by twiddling vm.swappiness. My experience doing so, however, was that it opened us up to situations where I would start to see processes get pranged by the out- of-memory desperation kill feature, even though there was quite a bit of memory still sitting unused. It was pretty frustrating. ok bear -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: swappiness drop_caches ?
On Wed, Apr 1, 2009 at 10:19 PM, Ayer, Paul W pwa...@statestreet.com wrote: For swappiness it seems that it would be set by each system and what they are doing from what I am reading.. Right, to be determined for each system separately, and reviewed when the application or configuration changes. I was just trying to explain why it would not be helpful to yell now we think 17 is a good number for swappiness For the cache I have found that you MUST enter the command sync first then it all works fine and a free display shows lower after .. without entering the sync command first they system just hangs up ... very true ... That would be ugly if it would simply drop a page even when dirty and thus hang the system (and hard to believe on any day but today). Obviously between you typing synch and the next command, new dirty pages could be created... You care for some Russian Roulette maybe? Some reading shows there are lockup scenarios when using drop_caches (and the Bugzilla is against RHEL). As for the need to sync first: I read the should sync first as that it is more effective when you first tell Linux to write out any dirty pages or you would be left later with the clean pages that are still in cache. But as said, when drop_caches does not reduce your memory requirement on z/VM, then I would not know why you would want to do it (apart as diagnostics to understand the baseline requirement for your page cache so that you can compute the swappiness). Rob -- Rob van der Heij Velocity Software http://www.velocitysoftware.com/ -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: swappiness drop_caches ?
Hi Paul , The drop_caches is a command itself . To have it working you should create a cron job to issue the command all the time what is not so good . About the swappiness it works in my case because that parameters change the schedule about the swap out . The trick is the server will swap out but only if it really needed . That will not solve the problem of the file cache but helps . If any one found the file cache solution please let me know . Saulo Augusto Silva 2009/4/1 Ayer, Paul W pwa...@statestreet.com Good afternoon all, Just wondering if anyone has some input (good, bad, warnings ...) or has had to used the following two items we are running VM5.4 and RHEL4.x and 5.x sles 9 and 10 systems 1) Setting swappiness to other than the default of 60 ? Echo nn /proc/sys/vm/swappiness 2) dropping caches ? Echo 1 or 2 or 3 /proc/sys/vm/drop_caches Thanks, Paul -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: SUSE on Native LPAR
On 4/1/2009 at 1:55 PM, Martin, Larry D ldmar...@co.pg.md.us wrote: I have made no progress. I do the initial load from the HMC and all is well. I specify NFS and point to a Linux desktop via IP address. On the desktop I have /sles10sp1/cd1 (..cd2; ..cd3; ..cd4)and I have started the NFS Server and exported /sles10sp1. All that I can get is an error = -1 in return. I have tried both with punch a hole in the firewall and without with the results being identical. I have looked in /var/log but do not see anything that makes any sense to me. Is the firewall running on the SLES10 desktop? If so, try shutting it down. If that makes things work, then use YaST to allow NFS as one of the permitted services. Do I need to export the sub-directories? You should not have to, unless you have multiple file systems (or CD images) mounted below the top-level directory. -snip- I would appreciate any advice (but please remember that I am a Linux novice and do not understand all of the jargon). Are you able to use a protocol other than NFS? I personally prefer using HTTP when I'm having problems getting to my install server. If not, then try doing an SSH install. Before starting YaST, try pinging the installation server. If that doesn't work, then you need to fix that. Once that does work, then try to telnet to port 111 on the installation server. Repeat as needed. Mark Post -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: swappiness drop_caches ?
On Wed, Apr 1, 2009 at 4:16 PM, r.stricklin b...@typewritten.org wrote: My experience doing so, however, was that it opened us up to situations where I would start to see processes get pranged by the out- of-memory desperation kill feature, even though there was quite a bit of memory still sitting unused. OOM can be disabled with # echo 0 /proc/sys/vm/oom-kill I know this sort of situation can happen with you're running 32 bit linux with large amounts of RAM (with Highmem enabled in the kernel) because linux splits the RAM into low memory (used by the kernel to track memory allocations and by applications) and high memory (used exclusively by applications), and when it runs out of low memory, it starts killing things, even if all the high memory is unused. 64 bit kernels don't have this problem because all memory is low memory. Enabling Hugemem in the kernel helps on 32 bit systems. I should note that OOM handling and memory overcommitting behavior have changed in newer kernels, and I'm not sure how it's handled now. Andrew -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: swappiness drop_caches ?
On Wed, Apr 1, 2009 at 11:16 PM, r.stricklin b...@typewritten.org wrote: I'm pretty unhappy with the way Linux has been managing memory, especially w/rt the block caches being allowed to page out process data. I was hopeful that we could affect some semblance of sane behavior by twiddling vm.swappiness. Yes, you should be able to, like Marcy experienced. If you can determine the setting. As I understand the motivation for swappiness was the other way around. Desktop users would want to protect some of the cache and swap out some unwanted stuff. My experience doing so, however, was that it opened us up to situations where I would start to see processes get pranged by the out- of-memory desperation kill feature, even though there was quite a bit of memory still sitting unused. You mean unused as free tells you, or what you think would be available when it would give up page cache and/or buffers? If it's in page cache then it could be that it really needed it, or that pages were dirty or not written out fast enough? And you were not playing with CMM? I do recall an issue with CMM where the pages in the balloon were incorrectly believed unused and thus no replenishment was triggered. Rob -- Rob van der Heij Velocity Software http://www.velocitysoftware.com/ -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Solaris v. Linux
Linux on 390 Port LINUX-390@VM.MARIST.EDU wrote on 04/01/2009 12:55:10 PM: On 4/1/09 11:36 AM, Kirk Wolf k...@dovetail.com wrote: What about GPL-licensed code using proprietary (closed) instructions and hipervisor features (DIAG, etc)? Aren't micro/millicode and zVM hipervisor vectors the new OCO with respect to Linux and Solaris on z? Thus the complete lack of comments in the QDIO code in Linux and the minimal formatting. Just this side of closed-source. -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 I work on channel firmware. I haven't looked at the zfcp/qeth/cio code, but I have some experience writing linux device drivers. In my experiences, I have found that comments in the linux kernel are sparse everywhere. Are there really less comments in this code than other parts of the kernel? Ray Higgs System z FCP Development Bld. 706, B24 2455 South Road Poughkeepsie, NY 12601 (845) 435-8666, T/L 295-8666 rayhi...@us.ibm.com -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Solaris v. Linux
On 4/1/09 9:13 PM, Raymond Higgs rayhi...@us.ibm.com wrote: Linux on 390 Port LINUX-390@VM.MARIST.EDU wrote on 04/01/2009 12:55:10 PM: Thus the complete lack of comments in the QDIO code in Linux and the minimal formatting. Just this side of closed-source. I work on channel firmware. I haven't looked at the zfcp/qeth/cio code, but I have some experience writing linux device drivers. In my experiences, I have found that comments in the linux kernel are sparse everywhere. Are there really less comments in this code than other parts of the kernel? Yes. There are no comments at all, and the code is visually and logically structured in such a way to give as little information about what it's doing as possible and to make it as difficult to understand as possible. In some ways it looks like it was deliberately obscured in terms of function names, variables, etc. The networking driver in OpenSolaris shares some of the same problems, for what I suspect are a lot of the same -- non-technical -- reasons. Let me be clear: I'm not blaming the folks in the German labs who wrote it -- it was probably the only compromise they could strike with the lawyers to get the source out there -- but boy, is that code hard to follow for something that is essentially setting up a shared memory buffer and managing toggling access to that buffer between the QDIO device and main CPUs using an undocumented instruction. The whole thing seems designed to make understanding what that undocumented instruction does hard, even though there are articles in the publically available IBM Systems Journal that describe it's behavior in detail. It'll be interesting to see if Linux and/or VM TCPIP gets a DIAG2A8 interface driver at some point. If so, a lot of that code ugliness could go away, as that interface IS documented. The other code will probably have to stick around to deal with the run-in-LPAR requirement, though. You know, some day if you're bored, it'd be really cool if all you folks get together and teach DIAG250 how to directly play nice with SCSI, and then all the current QDIO device interfaces would use documented interfaces. Life Would Be Good. But there I go causing trouble again... -- db -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
backups on Red hat
Hi I am implementing our first production Linux on the mainframe We are looking at backups What commercial backup systems have agents that can run on Red Hat on the Mainframe Our system of choice is Legato, but they do not seem to support this environment thank you Jan de Wet Deployment (Business Connexion), Services Building, Midrand, South Africa Cell: +27 (0)82 902 1996 Office: +27 (0)11 990 1695 Fax:+27 (0)86 572 5720 e-mail: jan.de...@bcx.co.za Jesus Christ is my Lord -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: backups on Red hat
TSM - IBM's Tivoli Storage Manager. Scott On Wed, Apr 1, 2009 at 10:21 PM, Jan de Wet - Business Connexion jan.de...@bcx.co.za wrote: Hi I am implementing our first production Linux on the mainframe We are looking at backups What commercial backup systems have agents that can run on Red Hat on the Mainframe Our system of choice is Legato, but they do not seem to support this environment thank you Jan de Wet Deployment (Business Connexion), Services Building, Midrand, South Africa Cell: +27 (0)82 902 1996 Office: +27 (0)11 990 1695 Fax:+27 (0)86 572 5720 e-mail: jan.de...@bcx.co.za Jesus Christ is my Lord -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
