Hi there, I am using lvm2 on debian. The lvm was build on top of 2 software raid partitions: /dev/md2 and /dev/md3 /dev/md3 was a raid 1 partition built from /dev/sdc1 and /dev/sdd1 The partition type is xfs. (both raids /dev/md2, /dev/md3 and lvm storage). Now, the problem i have. Somehow the /dev/md3 partition got messed up (out of sync) and between reboots the lvm partition uses alternatively either /dev/sdc1 or /dev/sdd1 eg: pvdisplay Found duplicate PV VxRU9BoOAwLDxJ8yifZT2fJGEn8CeLvs: using /dev/sdd1 not /dev/sdc1 --- Physical volume --- PV Name /dev/md2 VG Name vg PV Size 100.50 GB / not usable 0 Allocatable yes (but full) PE Size (KByte) 4096 Total PE 25727 Free PE 0 Allocated PE 25727 PV UUID 1vtRnR-jmjP-zbgG-JZJs-1WJu-3ZyV-Vik6wH --- Physical volume --- PV Name /dev/sdc1 VG Name vg PV Size 130.39 GB / not usable 0 Allocatable yes (but full) PE Size (KByte) 4096 Total PE 33381 Free PE 0 Allocated PE 33381 PV UUID VxRU9B-oOAw-LDxJ-8yif-ZT2f-JGEn-8CeLvs The bad thing is that some files ended up on /dev/sdd1 and some others on /dev/sdc1. I've unmounted the storage lvm drive and tryed to do a /dev/md3 Assemble but it looks like it won't come up ! mdadm --detail /dev/md3 mdadm: md device /dev/md3 does not appear to be active. mdadm -A /dev/md3 mdadm: no devices found for /dev/md3 mdadm -A /dev/md3 /dev/sdd1 mdadm: /dev/md3 assembled from 1 drive - need all 2 to start it (use --run to insist). mdadm -A /dev/md3 /dev/sdd1 /dev/sdc1 mdadm: failed to add /dev/sdc1 to /dev/md3: Device or resource busy mdadm: /dev/md3 assembled from 1 drive - need all 2 to start it (use --run to insist). I've already did a backup of what i can mount now. Some files are still on the "other lvm". What i need to know are some advices from you guys of how to recover the most of the data from the "mess" i ended up with ! Eg: - start lvm with /dev/sdd1 and do another backup (how do i do it in order to make the damage minimum) - start the md3 (repair or some) and not to loose data Anything you can come up will be highly appreciated. Thank you for your time and sorry if the post is too big! -- Catalin Constantin Bounce Software _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
