Messages in this thread | | | Date | Wed, 26 Aug 2009 20:33:40 -0600 | From | Robert Hancock <> | Subject | Re: MD/RAID: what's wrong with sector 1953519935? |
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On 08/26/2009 12:12 PM, Andrei Tanas wrote: > The relevant portions of the log file are below (two independent events, > there is nothing related to ata before the "exception" message): > > [901292.247428] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 > frozen > [901292.247492] ata2.00: cmd ea/00:00:00:00:00/00:00:00:00:00/a0 tag 0 > [901292.247494] res 40/00:01:01:4f:c2/00:00:00:00:00/00 Emask 0x4 > (timeout) > [901292.247500] ata2.00: status: { DRDY } > [901292.247512] ata2: hard resetting link > [901294.090746] ata2: SRST failed (errno=-19) > [901294.101922] ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300) > [901294.101938] ata2.00: failed to IDENTIFY (I/O error, err_mask=0x40) > [901294.101943] ata2.00: revalidation failed (errno=-5) > [901299.100347] ata2: hard resetting link > [901299.974103] ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300) > [901300.105734] ata2.00: configured for UDMA/133 > [901300.105776] ata2: EH complete > [901300.137059] end_request: I/O error, dev sdb, sector 1953519935 > [901300.137069] md: super_written gets error=-5, uptodate=0 > [901300.137077] raid1: Disk failure on sdb1, disabling device. > [901300.137079] raid1: Operation continuing on 1 devices. > > [90307.328266] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 > frozen > [90307.328275] ata2.00: cmd ea/00:00:00:00:00/00:00:00:00:00/a0 tag 0 > [90307.328277] res 40/00:01:01:4f:c2/00:00:00:00:00/00 Emask 0x4 > (timeout) > [90307.328280] ata2.00: status: { DRDY } > [90307.328288] ata2: hard resetting link > [90313.218511] ata2: link is slow to respond, please be patient (ready=0) > [90317.377711] ata2: SRST failed (errno=-16) > [90317.377720] ata2: hard resetting link > [90318.251720] ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300) > [90318.338026] ata2.00: configured for UDMA/133 > [90318.338062] ata2: EH complete > [90318.370625] end_request: I/O error, dev sdb, sector 1953519935 > [90318.370632] md: super_written gets error=-5, uptodate=0 > [90318.370636] raid1: Disk failure on sdb1, disabling device. > [90318.370637] raid1: Operation continuing on 1 devices. > > And here's the story for linux-ide from the earlier messages: >> I'm using two ST31000528AS drives in RAID1 array using MD. I've had > several >> failures occur over a period of few months (see logs below). I've RMA'd > the >> drive, but then got curious why an otherwise normal drive locks up while >> trying to write the same sector once a month or so, but does not report >> having bad sectors, doesn't fail any tests, and does just fine if I do >> dd if=/dev/urandom of=/dev/sdb bs=512 seek=1953519935 count=1 >> however many times I try. >> I then tried Googling for this number (1953519935) and found that it > comes >> up quite a few times and most of the time (or always) in context of >> md/raid.
This looks more like some kind of drive communication problem than a media problem. It looks like not only did the request time out but it didn't respond to the first hard reset either. I'd lean towards something like a bad cable, or a power supply that's marginal for the number of drives, etc. in the machine.
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