"Frank J. Buchholz" <frankb@ercwc.org> writes: >> "Frank J. Buchholz" <frankb ercwc org> writes: >> >>> Hello, >>> >>> I recently attempted to extend my logical volume. First I added an >>> additional physical volume to an existing volume group. This worked >>> fine. >>> >>> vgextend Volume00 /dev/sba >>> lvextend -L+100G /dev/Volume00/LogVol00 >>> >>> However when it came time to run the lvextend command I received a >>> number of device-mapper errors. While I was trying to determine what >>> the errors were I noticed that the filesystem that sits on the logical >>> volume being extended was no longer available. I attempted to umount >>> the filesystem however the command froze. I then rebooted the system >>> without mounting the filesystem in question and manually mounted the >>> filesystem. XFS reported back that it could not locate the superblock. >> >> I have done lvextend followed by xfs_growfs many times without any >> problems. Have you checked for hardware errors? > > Unfortunately the timing is far too coincidental to be a hardware error. Since you had just added another disk, it may not be so coincidental after all. > Just after typing the following command and recieving the following error > lvm> lvextend -L+1G /dev/Volume00/LogVol00 > Extending logical volume LogVol00 to 2.93 TB > device-mapper ioctl cmd 9 failed: Invalid argument > Couldn't load device 'Volume00-LogVol00'. > Problem reactivating LogVol00 The last line would explain why the filesystem went offline. Something went wrong just after the LV had been extended, and was about to be reactivated. > I then noticed that the filesystem on LogVol00 was no longer available > and when I ran xfs_repair it stated the following: > # xfs_repair /dev/Volume00/LogVol00 > Phase 1 - find and verify superblock... > superblock read failed, offset 0, size 524288, ag 0, rval 0 > > fatal error -- Invalid argument What does "dmesg" have to say about this? I had a problem once with some strange errors from a disk. It turned out the cable wasn't plugged in properly. -- Måns Rullgård mru@inprovide.com _______________________________________________ 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/
