So what do you get if you run: mmfsadm test readdescraw /dev/mapper/dh1_vd05_005
? Vic Cornell [email protected] On 13 Feb 2013, at 16:29, Chad Kerner <[email protected]> wrote: > I have a file system, and it appears that someone dd'd over the first part of > one of the NSD's with zero's. I see the device in multipath. I can fdisk and > dd the device out. > > Executing od shows it is zero's. > (! 21)-> od /dev/mapper/dh1_vd05_005 | head -n 5 > 0000000 000000 000000 000000 000000 000000 000000 000000 000000 > * > 0040000 120070 156006 120070 156006 120070 156006 120070 156006 > > Dumping the header of one of the other disks shows read data for the other > NSD's in that file system. > > (! 25)-> mmlsnsd -m | grep dh1_vd05_005 > Disk name NSD volume ID Device Node name > Remarks > --------------------------------------------------------------------------------------- > dh1_vd05_005 8D8EEA98506C69CE - myhost (not found) server node > > (! 27)-> mmnsddiscover -d dh1_vd05_005 > mmnsddiscover: Attempting to rediscover the disks. This may take a while ... > myhost: Rediscovery failed for dh1_vd05_005. > mmnsddiscover: Finished. > > > Wed Feb 13 09:14:03.694 2013: Command: mount desarchive > Wed Feb 13 09:14:07.101 2013: Disk failure. Volume desarchive. rc = 19. > Physical volume dh1_vd05_005. > Wed Feb 13 09:14:07.102 2013: File System desarchive unmounted by the system > with return code 5 reason code 0 > Wed Feb 13 09:14:07.103 2013: Input/output error > Wed Feb 13 09:14:07.102 2013: Failed to open desarchive. > Wed Feb 13 09:14:07.103 2013: Input/output error > Wed Feb 13 09:14:07.102 2013: Command: err 666: mount desarchive > Wed Feb 13 09:14:07.104 2013: Input/output error > Wed Feb 13 09:14:07 CST 2013: mmcommon preunmount invoked. File system: > desarchive Reason: SGPanic > > Is there any way to repair the header on the NSD? > > Thanks for any ideas! > Chad > > > _______________________________________________ > gpfsug-discuss mailing list > [email protected] > http://gpfsug.org/mailman/listinfo/gpfsug-discuss
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