On 24-09-2009 14.54 -0600, Ed Brown wrote: >> from doing google searches, I found this gem to restore a >> pv: >> pvcreate --uuid "cqH4SD-VrCw-jMsN-GcwH-omCq-ThpE-dO9KmJ" >> --restorefile /etc/lvm/backup/vg_04 /dev/sdd1 >> >> >> however, the man page says to 'use with care'. I don't want >> to lose data. Can anybody comment on how safe it would be to run this? > > Not very safe. I'm no expert, but something is not right with the > layout you've described. Your lvm pv's should not have GPT partition > labels as you showed in your last mail. I believe parted should report > "unrecognised disk label" if you try to print the pv partition table. > Showing output from some 5.3 system only confuses the picture, and > doesn't support the "problem follows upgrade to rhel 5.4" hypothesis. Be > very careful until you're more sure of the layout and the actual problem. > > -Ed ---end quoted text---
hi Ed, These are fibre-channel storage devices. I tried to 'downgrade' from rhel5.4 -> 5.3, but this was imperfect, and I didn't succeed in downgrading all the packages. I figured there was a problem during the upgrade (since that's the only thing that changed), so I decided to try viewing the devices from a CentOS5.3 install. I figured it couldn't hurt. In any case, I verified that there is no LVM disk label on these devices (using strings), so somehow that information got lost. I have not run any disk partitioning/formatting utilities on these devices, so I'm at a loss how this happened. -Julie -- Julie Ashworth <[email protected]> Computational Infrastructure for Research Labs, UC Berkeley http://cirl.berkeley.edu/ PGP Key ID: 0x17F013D2 _______________________________________________ rhelv5-list mailing list [email protected] https://www.redhat.com/mailman/listinfo/rhelv5-list
