Fileio Vs. Blockio

2008-06-23 Thread HIMANSHU
If lun is having LV(i.e.Virtual Block device) in it,then it should be exposed as Blockio. If it is exposing Regular file,then it should use Fileio. Is it right? Regular file is exposed as a disk.What is difference between 'Blockio and Fileio in iSCSI.

Re: Trouble automating login: iface iter could not stat...

2008-06-23 Thread Michael
Yes to both questions, Konrad. On Jun 20, 12:28 pm, Konrad Rzeszutek [EMAIL PROTECTED] wrote: On Fri, Jun 20, 2008 at 08:42:25AM -0700, Michael wrote: I'm trying to implement the automatic login, by doing: iscsiadm -m node -T targetname --op update -n node.startup -v automatic When I

Re: Fileio Vs. Blockio

2008-06-23 Thread Konrad Rzeszutek
On Mon, Jun 23, 2008 at 05:22:00AM -0700, HIMANSHU wrote: If lun is having LV(i.e.Virtual Block device) in it,then it should be exposed as Blockio. If it is exposing Regular file,then it should use Fileio. Is it right? Regular file is exposed as a disk.What is difference between 'Blockio

Re: Fileio Vs. Blockio

2008-06-23 Thread Ming Zhang
On Mon, 2008-06-23 at 05:42 -0700, HIMANSHU wrote: What is use of exporting Regular File as a disk and LV's as a Disk? Which one is better? What is better ? Fileio or Blockio in terms of Performance/Other issues? u asked in wrong list. u should go iet list instead of open-iscsi list.

Re: Trouble automating login: iface iter could not stat...

2008-06-23 Thread Mike Christie
Michael wrote: I'm trying to implement the automatic login, by doing: iscsiadm -m node -T targetname --op update -n node.startup -v automatic When I run this after inserting the proper target name, it seems to work fine. But when I do: service open-iscsi restart, I get: Setting up

Re: Trouble automating login: iface iter could not stat...

2008-06-23 Thread Michael
Ok, I ran the command I previously noted to set automatic startup, then ran the command you suggested, with this output: [EMAIL PROTECTED] ~]# iscsiadm -m node -L automatic -d 8 iscsiadm: Max file limits 1024 1024 iscsiadm: searching target name iscsiadm: found 10.3.2.7,3260,-1 iscsiadm:

Re: Trouble automating login: iface iter could not stat...

2008-06-23 Thread Michael
Also, it works perfectly fine if I go into /etc/iscsi/nodes/target name/10.3.2.1,3260 and edit the node.startup line myself. Am I just typing the command wrong without realizing it? Again, I'm doing: iscsiadm -m node -T targetname --op update -n node.startup -v automatic On Jun 23, 3:04 pm,

Re: Removing individual LUNs

2008-06-23 Thread Mike Christie
Alex M. wrote: On Jun 16, 4:29 pm, Mike Christie [EMAIL PROTECTED] wrote: Do: iscsiadm -m session -r $SID --rescan Doing a rescan doesn't appear to pick up the new size of the devices. When you run that command what gets outputted to /var/log/messages. For existing devices you should

Re: iscsi errors with debian-kernel 2.6.24-3-686

2008-06-23 Thread Mike Christie
Michael Kindermann wrote: Hello, thanks for quick reply. During weekend I did backups on the iscsi-device with not one single error on kernel 2.6.22. Am Freitag, den 13.06.2008, 19:11 +0200 schrieb Mike Christie: Michael Kindermann wrote: Hello, We receive errors below on a standard

Re: iSCSI tape drive problems

2008-06-23 Thread Mike Christie
Michael wrote: Hi all, I've been using open-iscsi to set up an IBM Ultrium LTO-4 tape drive. I can connect and transfer files and everything, but the maximum read or write speed I can get is like 16MB/s by tweaking the block size. I am on a gigabit network, which the tape drive supports.

Re: Removing individual LUNs

2008-06-23 Thread Alex M.
On Jun 23, 1:27 pm, Mike Christie [EMAIL PROTECTED] wrote: --snip-- However, there is issue outstanding I think. I think you then need a new a newer kernel (like 2.6.26 or something) so that the block layer can see the changes and pick up the scsi layer changes. Also see my comment on FSs

Re: Disconnected iSCSI and umount problems

2008-06-23 Thread Mike Christie
An Oneironaut wrote: I posted a little while back about this, but I still seem to be having trouble with this issue. Originally I tried to setup my iSCSI connection so that it had a 24 day timeout period and the no-op timers would be disabled. However this timeout led to a variety of

Re: iSCSI and filesystem error recovery

2008-06-23 Thread Mike Christie
galitz wrote: I am evaluating iSCSI in our production environment and have a question. When I induce a failure by powering down the iSCSI target while there is active traffic and then restore the iSCSI target 5+ minutes later, the filesystem remains in read-only mode. Fair enough, I

RE: iSCSI and filesystem error recovery

2008-06-23 Thread Geoff Galitz
Thanks for the info. One more question, I just looked through the iscsi.conf file and the README but I do not see a setting for explicitly setting dm-multipath. How do I enable it? -geoff Geoff Galitz Blankenheim NRW, Deutschland http://www.galitz.org -Original Message- From: