Re: Mounting root fs of one instance to another instance to make repairs

Since we're on the topic of SAN ... What Mark said is true. While Alan points out correctly that the (virtual or real) WWPN follows the subchannel, if you connect Linux directly to the SAN, you'll still have to tell Linux which WWPN+LUN pair(s) to use. My conclusion after careful analysis: hemorr

Re: Mounting root fs of one instance to another instance to make repairs

That's handy to know. Another thing about rescuing some other guest's LUN, if (to avoid looking up where to echo the LUN's wwpn and LUN# to the /sys structures to put that LUN online) I use zfcp_disk_configure to put the LUN online, that command adds/updates files in /etc to automatically brin

Re: Mounting root fs of one instance to another instance to make repairs

>>> On 6/25/2009 at 3:55 PM, Alan Altmark wrote: -snip- > It doesn't matter what user ID is used. The NPIV WWPN is assigned to the > subchannel. ATTACH the sc to whatever guest you want. (The old > userid-based LUN Access Control authorization scheme is long gone.) True, but having to config

Re: Mounting root fs of one instance to another instance to make repairs

On Thursday, 06/25/2009 at 03:32 EDT, "Romanowski, John (OFT)" wrote: > Some more pedantism: For both dasd and SCSI disks, booting a rescue system on > the downed zLinux server makes repairing the file easier: > the VM userid already has access to the disk in question, no need to LINK to or > get

Re: Mounting root fs of one instance to another instance to make repairs

Very good points here, John. Romanowski, John (OFT) wrote: Some more pedantism: For both dasd and SCSI disks, booting a rescue system on the downed zLinux server makes repairing the file easier: the VM userid already has access to the disk in question, no need to LINK to or get the other useri

Re: Mounting root fs of one instance to another instance to make repairs

Some more pedantism: For both dasd and SCSI disks, booting a rescue system on the downed zLinux server makes repairing the file easier: the VM userid already has access to the disk in question, no need to LINK to or get the other userid zoned/masked to the downed server's LUN. > -Original Me

Re: Mounting root fs of one instance to another instance to make repairs

Not to be too pedantic here, but the methods being offered on how to access one zLinux's file system from another, to make repairs or whatever, all assume that the Linux file systems are on 'old-style' mainframe DASD, either ECKD (3390) or FBA (either 9336 or EDEV). If the zLinux guest is installe

IBM FileNet P8 4.5 on zLinux (SUSE) using DB2 also Running on zLinux

Is anyone running IBM FileNet P8 4.5 on zLinux (SUSE) using DB2 also running on zLinux(SUSE)? Our open system group would like to move it over to our z/VM system running Linux, but would like to know if anyone else has FileNet running on zlinux. Thanks Tom Morris tmor...@wcfgroup.com WCF

Re: Mounting root fs of one instance to another instance to make repairs

Attach the other disk, or in the case of minidisk, Link to the other disk. vary the device online chccwdev --online ccuu Find the device lsdasd mount the device mount /dev/dasdx1 /mnt On Thu, Jun 25, 2009 at 8:19 AM, Lee, Gary D. wrote: > Under vm 5.3 both instances are suse sles10. > > Some

Re: Mounting root fs of one instance to another instance to make repairs

Good question, Ron. This is a case where LVMing the root can lead to pain. If the root is not LVMed, then you can follow Bernie's recipe. Easy! Otherwise (with logical volumes) you might have multiple PVs to attach ... and worse ... what if the volume groups collide? (same name - you can work aro

Re: Mounting root fs of one instance to another instance to make repairs

Gary, I need a little more information on how your systems are set up. Are you using lvm for your operating system disk on instance a and instance b? Ron Lee, Gary D. wrote: Under vm 5.3 both instances are suse sles10. Some one edited the /etc/inittab on instance A. How can we mount instanc

Re: OSPF & VSWITCH

Yes. OSPF is just a payload on a normal IP packet. I'd suggest layer 2 for the VSWITCH to permit easier use of the OSPF multicast component, but it will work fine without it. > -Original Message- > From: Linux on 390 Port [mailto:linux-...@vm.marist.edu] On Behalf Of > Bruce Furber > Se

OSPF & VSWITCH

We are running z/VM 5.4 with linux machines running off a VSWITCH. Can I run QUAGGA OSPF thru the VSWITCH or do I need to dedicate OSA ports to my Linux machine? T.I.A. for any help. Bruce -- For LINUX-390 subscribe / signoff /

Re: Mounting root fs of one instance to another instance to make repairs

>From "B" # vmcp link "A" 100 1100 mr ( assuming 100 is instance A's root disk ) # chccwdev -e 0.0.1100 # mkdir /Aroot # lsdasd ( to determine /dev/dasd? ) # mount /dev/dasd? /Aroot Then you can either # cd /Aroot/etc Or # chroot /Aroot

Mounting root fs of one instance to another instance to make repairs

Under vm 5.3 both instances are suse sles10. Some one edited the /etc/inittab on instance A. How can we mount instance a's root fs to instance b so as to fix the inittab? Or, is there a better way? Thanks for any help. Gary Lee Senior System Programmer Ball State University phone: 765-285-1310

Re: Unable to logon to Linux under VM

-Snip- Reboot the z/VM guest. You should get a menu. At that point enter: #cp vi vmsg 0 init=3D/bin/bash -Snip- I don't get a menu, just the logon prompt. Still, I'll try it. Vince Getgood -- For LINUX-390 s