As long as all of the right uuid/lvm identifiers are found on any online disks - LVM doesn't care about device addresses. You just want to make sure those addresses are available and brought online by Linux when it comes up (and that you have no devices online that have duplicate uuid/lvm info on them!)
Scott Rohling On Fri, Aug 6, 2010 at 7:24 AM, Dean, David (I/S) <david_d...@bcbst.com>wrote: > We do this and do not have an issue. When we restore an lvm DASD it drops > right back into place. I thought it went by the formatted volume name, not > the real dev name. > > -----Original Message----- > From: Linux on 390 Port [mailto:linux-...@vm.marist.edu] On Behalf Of > Lester, Doug > Sent: Thursday, August 05, 2010 4:31 PM > To: LINUX-390@VM.MARIST.EDU > Subject: Full volume restore of an LVM DASD > > We do full volume backups via HSM. In the case of a DASD hardware > failure, I would like to be able to restore to a new volume and make the > necessary changes for Linux to recognize the new volume. This does not > appear to be a problem unless the new DASD is part of LVM. Perhaps > someone can give me some guidance using the following scenario. Please > keep in mind; this is a SLES10 SP3 s390x LPAR installation. > Unfortunately, we do not run Linux under z/VM. > > Example: If device 2912 has a hardware failure, I can restore to another > volume (say, 372f). I would also restore the other 2 volumes to the > original devices to remain in sync, unless someone can offer a better > suggestion. > > How do I get Linux/LVM to recognize 372f instead of 2912? > > Configuration: > -------------- > 0.0.2911(ECKD) at ( 94: 0) is dasda (/) > 0.0.2912(ECKD) at ( 94: 4) is dasdb (LVM) > 0.0.2915(ECKD) at ( 94: 8) is dasdc (LVM) > > Filesystem Size Used Avail Use% Mounted on > /dev/dasda1 6.8G 372M 6.1G 6% / > udev 247M 112K 247M 1% /dev > /dev/mapper/system--vg-home--lv > 496M 17M 454M 4% /home > /dev/mapper/system--vg-opt--lv > 2.0G 603M 1.3G 32% /opt > /dev/mapper/system--vg-srv--lv > 496M 32M 440M 7% /srv > /dev/mapper/system--vg-tmp--lv > 1008M 492M 466M 52% /tmp > /dev/mapper/system--vg-usr--lv > 4.0G 2.3G 1.6G 59% /usr > /dev/mapper/system--vg-var--lv > 1008M 221M 737M 24% /var > > > Doug Lester > > > > ---------------------------------------------------------------------- > 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 more information on Linux on System z, visit > http://wiki.linuxvm.org/ > ----------------------------------------------------- > Please see the following link for the BlueCross BlueShield of Tennessee > E-mail disclaimer: http://www.bcbst.com/email_disclaimer.shtm > > ---------------------------------------------------------------------- > 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 more information on Linux on System z, visit > http://wiki.linuxvm.org/ > ---------------------------------------------------------------------- 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 more information on Linux on System z, visit http://wiki.linuxvm.org/
