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04-29-2013 03:29 AM
04-29-2013 03:29 AM
MSA2324fc Vdisk fault
Hello!
We have been using MSA2324fc for a couple of months. MSA is equipped with 14 hard drives. We have one RAID-6 array configured.
This morning we saw that our data is inaccessible. SMU shows that Vdisk status is "Fault".
Besides this, Fault LEDs on 3 hard drives (#7, 10, 13) are On (Solid) and their Online LEDs are also on. There are no such LED combination in User guide.
SMU shows that all hard drives are "Healthy" and "Up". The same for Controller and Power supplies.
What should we do to manage this and make data accessible again?
Thank you!
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04-29-2013 06:21 AM
04-29-2013 06:21 AM
Re: MSA2324fc Vdisk fault
In SMU click on the critical events and post the events that recently happened, these events will help us to undestand why the vdisk went OFFL.
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04-29-2013 09:56 PM
04-29-2013 09:56 PM
Re: MSA2324fc Vdisk fault
PAC-MAN, thanks for your response!
Unfortunately log records are too new now, because we tried to restore the system quickly with some primitive methods (remove/insert "fault" hard drives, reboot MSA). This caused posting of many new log records. For now we have restored main data from backup onto reserve storage system. Also we have recreated Vdisk on MSA2324fc.
After recreating Vdisk we had one hard drive in "leftover" status (#7) and another one in "spare" status (#1). Then we cleared metadata of hard drive #7. But after the second Vdisk recreation we had hard drive #10 in "leftover" status and hard drive #1 in "spare" status. Then we cleared metadata of hard drives # 7 and 10. For now, after the third Vdisk recreation, we have Vdisk in "fault tolerant" status. MSA is performing "Media scrub" to Vdisk for many hours now.
Now we are waiting for what comes next...
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04-30-2013 01:17 AM
04-30-2013 01:17 AM
Re: MSA2324fc Vdisk fault
Now newly created Vdisk is usable, but already the third "media scrub" job is in progress.
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05-01-2013 07:34 AM
05-01-2013 07:34 AM
Re: MSA2324fc Vdisk fault
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05-02-2013 10:11 PM
05-02-2013 10:11 PM
Re: MSA2324fc Vdisk fault
MSA has been executing "Media scrub" jobs for 3 days now. Should we patiently wait or should we somehow interrupt the process?
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05-03-2013 04:58 AM
05-03-2013 04:58 AM
Re: MSA2324fc Vdisk fault
After 3 days of "Media scrub" we have 16 "informational" records in event log with text like "An error was detected by a disk drive. (disk: channel: 0, ID: 6, SN: TP3105138711, enclosure: 1, slot: 7)(Key,Code,Qual:0x1,0x17,0x3)(CDB:Rd 0874a980 0080)(Info:0x0874A9B4)(CmdSpc:0x0, FRU:0x0, SnsKeySpc:0x800025)(Recovered Error, recovered data with negative head offset)".
Fifteen records refers to hard drive in slot # 7 and one record refers to hard drive in slot #10.
"Media scrub" is still in progress.
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06-05-2013 10:37 PM
06-05-2013 10:37 PM
Re: MSA2324fc Vdisk fault
After a few days of work hard drive in slot #13 has got to "Leftover" status. The drive was making loud sounds of crackle.
In the next few days hard drives in slots ##7 and 10 have got to "Leftover" status too. There was a number of "Informational" records in Log regarding these drives with Events 58 and Messages "...read retries exhausted" immediately before that.
We gave these three drives to the seller and they replaced bad drives with new ones.
All was fine for about a week, but in last 2 days we had 9 "Informational" records in Log regarding drive in slot #10 (again!) with Events 58 and Messages "...Recovered Error, recovered data with error correction applied", "...Recovered Error, recovered data with retries", "...Recovered Error, recovered data with negative head offset".
Do these records indicate that the new drive in slot #10 is also bad or there are some problems with MSA?