* Re: Dual disk RAID 5 failure! [not found] <A6264114-3F0D-11D9-8034-000A959A30DC@postbox.org.uk> @ 2004-11-25 19:31 ` David Greaves 2004-11-25 20:22 ` Chris Birkinshaw 0 siblings, 1 reply; 3+ messages in thread From: David Greaves @ 2004-11-25 19:31 UTC (permalink / raw) To: Chris Birkinshaw; +Cc: linux-raid, evms-devel certainly cc the guys on linux-raid - a *great* bunch :) you'll need more detail on your config though - have you got mdadm installed? mdadm --detail /dev/md0 any log output? David Chris Birkinshaw wrote: > > > Hi, > > Last night one of my drives got corrupted during a crash, but also > corrupted the other drive on that controller (I know I should only > have one drive per controller but you know how it is.... stable door > and all that). > > So I now have 2 disks missing from my RAID 5 with corrupt superblocks. > Is there any way to get back from this, there was around 400Gb of data > on there.... > > If anyone has any idea at all that may help I would be very happy to > hear it, > > Many thanks, > > Chris > > ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://productguide.itmanagersjournal.com/ _______________________________________________ Evms-devel mailing list Evms-devel@lists.sourceforge.net To subscribe/unsubscribe, please visit: https://lists.sourceforge.net/lists/listinfo/evms-devel ^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Dual disk RAID 5 failure! 2004-11-25 19:31 ` Dual disk RAID 5 failure! David Greaves @ 2004-11-25 20:22 ` Chris Birkinshaw 2004-11-30 2:33 ` Neil Brown 0 siblings, 1 reply; 3+ messages in thread From: Chris Birkinshaw @ 2004-11-25 20:22 UTC (permalink / raw) To: David Greaves; +Cc: linux-raid, evms-devel Thanks for the quick response! mdadm --detail /dev/md0 gives: /dev/md0: Version : 00.90.01 Creation Time : Mon Aug 11 16:21:07 2003 Raid Level : raid5 Device Size : 58612992 (55.90 GiB 60.02 GB) Raid Devices : 7 Total Devices : 5 Preferred Minor : 0 Persistence : Superblock is persistent Update Time : Thu Nov 25 17:03:19 2004 State : dirty, degraded Active Devices : 5 Working Devices : 5 Failed Devices : 0 Spare Devices : 0 Layout : left-asymmetric Chunk Size : 128K Number Major Minor RaidDevice State 0 0 0 -1 removed 1 0 0 -1 removed 2 253 25 2 active sync /dev/evms/.nodes/hdg1 3 253 26 3 active sync /dev/evms/.nodes/hdh1 4 253 27 4 active sync /dev/evms/.nodes/hdi1 5 253 24 5 active sync /dev/evms/.nodes/hde_bbr3 6 253 22 6 active sync /dev/evms/.nodes/hdb1 UUID : aee7cfe5:90afb264:d1f855a1:f7a6b30e Events : 0.10035809 On 25 Nov 2004, at 19:31, David Greaves wrote: > certainly cc the guys on linux-raid - a *great* bunch :) > > you'll need more detail on your config though - have you got mdadm > installed? > > mdadm --detail /dev/md0 > > any log output? > > David > > Chris Birkinshaw wrote: > >> >> >> Hi, >> >> Last night one of my drives got corrupted during a crash, but also >> corrupted the other drive on that controller (I know I should only >> have one drive per controller but you know how it is.... stable door >> and all that). >> >> So I now have 2 disks missing from my RAID 5 with corrupt >> superblocks. Is there any way to get back from this, there was around >> 400Gb of data on there.... >> >> If anyone has any idea at all that may help I would be very happy to >> hear it, >> >> Many thanks, >> >> Chris >> >> ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://productguide.itmanagersjournal.com/ _______________________________________________ Evms-devel mailing list Evms-devel@lists.sourceforge.net To subscribe/unsubscribe, please visit: https://lists.sourceforge.net/lists/listinfo/evms-devel ^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Dual disk RAID 5 failure! 2004-11-25 20:22 ` Chris Birkinshaw @ 2004-11-30 2:33 ` Neil Brown 0 siblings, 0 replies; 3+ messages in thread From: Neil Brown @ 2004-11-30 2:33 UTC (permalink / raw) To: Chris Birkinshaw; +Cc: David Greaves, linux-raid, evms-devel On Thursday November 25, chris@postbox.org.uk wrote: > >> Hi, > >> > >> Last night one of my drives got corrupted during a crash, but also > >> corrupted the other drive on that controller (I know I should only > >> have one drive per controller but you know how it is.... stable door > >> and all that). > >> > >> So I now have 2 disks missing from my RAID 5 with corrupt > >> superblocks. Is there any way to get back from this, there was around > >> 400Gb of data on there.... > >> > >> If anyone has any idea at all that may help I would be very happy to > >> hear it, Have you tried: mdadm --assemble --force /dev/mdWHATEVER /dev/list-of-devices-that-contain-the-array ?? NeilBrown ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://productguide.itmanagersjournal.com/ _______________________________________________ Evms-devel mailing list Evms-devel@lists.sourceforge.net To subscribe/unsubscribe, please visit: https://lists.sourceforge.net/lists/listinfo/evms-devel ^ permalink raw reply [flat|nested] 3+ messages in thread
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2004-11-25 19:31 ` Dual disk RAID 5 failure! David Greaves
2004-11-25 20:22 ` Chris Birkinshaw
2004-11-30 2:33 ` Neil Brown
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