Something like this?: umount the filesystem(s) the LVM is being used by
vgchange -an vgname (deactivate the volume group) chccwdev -d 2912 (deactivate 2912) chccwdev -e 372f (activate 372f) pvscan vgscan vgchange -ay vgname (activate the volume group) mount -a Note - I've never tried this... these are just the steps I would think would need to be taken. Also - to unmount things properly - you probably have to do an 'init 1' - that may be problematic, depending on terminal access. Scott Rohling On Thu, Aug 5, 2010 at 2:31 PM, Lester, Doug <[email protected]>wrote: > 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 [email protected] 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 [email protected] 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/
