linux-kernel - Re: Ninth(?) Velociraptor replacement or md(RAID)/smartmontools(?) bug?

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Date:	Fri, 21 Nov 2008 12:37:59 +0100
From:	Peter Rabbitson <rabbit+list@...bit.us>
To:	Justin Piszcz <jpiszcz@...idpixels.com>
CC:	linux-raid <linux-raid@...r.kernel.org>,
	linux-kernel@...r.kernel.org, alan@...rguk.ukuu.org.uk,
	smartmontools-support@...ts.sourceforge.net,
	Bruce Allen <ballen@...vity.phys.uwm.edu>
Subject: Re: Ninth(?) Velociraptor replacement or md(RAID)/smartmontools(?)
 bug?

Justin Piszcz wrote:
> 
> 
> On Fri, 21 Nov 2008, Peter Rabbitson wrote:
> 
>> It might very well be a WD bug. I had three (3) identical WDC
>> WD2500AAJS-08B4A0 drives fail on me with the same _identical_ error
>> (same sector number to the last digit):
>>
>> Oct 27 11:33:41 Arzamas kernel: ata6.00: exception Emask 0x10 SAct 0x0
>> SErr 0x80000 action 0xe frozen
>> Oct 27 11:33:41 Arzamas kernel: ata6.00: irq_stat 0x01100010, PHY RDY
>> changed
>> Oct 27 11:33:41 Arzamas kernel: ata6: SError: { 10B8B }
>> Oct 27 11:33:41 Arzamas kernel: ata6.00: cmd
>> ea/00:00:00:00:00/00:00:00:00:00/a0 tag 0
>> Oct 27 11:33:41 Arzamas kernel: res 06/37:00:00:00:00/00:00:00:00:06/00
>> Emask 0x12 (ATA bus error)
>> Oct 27 11:33:41 Arzamas kernel: ata6.00: error: { IDNF ABRT }
>> Oct 27 11:33:41 Arzamas kernel: ata6: hard resetting link
>> Oct 27 11:33:46 Arzamas kernel: ata6: SATA link up 3.0 Gbps (SStatus 123
>> SControl 0)
>> Oct 27 11:33:46 Arzamas kernel: ata6.00: configured for UDMA/100
>> Oct 27 11:33:46 Arzamas kernel: ata6: EH complete
>> Oct 27 11:33:46 Arzamas kernel: sd 6:0:0:0: [sde] 488397168 512-byte
>> hardware sectors (250059 MB)
>> Oct 27 11:33:46 Arzamas kernel: sd 6:0:0:0: [sde] Write Protect is off
>> Oct 27 11:33:46 Arzamas kernel: sd 6:0:0:0: [sde] Mode Sense: 00 3a 00 00
>> Oct 27 11:33:46 Arzamas kernel: sd 6:0:0:0: [sde] Write cache: enabled,
>> read cache: enabled, doesn't support DPO or FUA
>> Oct 27 11:33:46 Arzamas kernel: end_request: I/O error, dev sde, sector
>> 488166955
>> Oct 27 11:33:46 Arzamas kernel: md: super_written gets error=-5,
>> uptodate=0
>>
>>
>> All 3 drives endured the same multiple rewriting of the sector in
>> question, as they did multiple smart self-tests. I am currently in the
>> process of replacing these two drives with Seagates, (the other 2 in the
>> 4 member array are Maxtors). Will see what happens.
>>
>> Peter
>>
>> P.S. See threads http://marc.info/?l=linux-raid&m=122523835815697 and
>> http://marc.info/?l=linux-raid&m=122669103213041 for more info on my
> 
> Pete,
> 
> Are these -new- 250GiB drives, recently purchased?
> 
> # hdparm -iv /dev/sda
>  Drive conforms to: Unspecified:  ATA/ATAPI-1,2,3,4,5,6,7
> 
> What does yours conform to, just curious?
> 

All 3 were new, bought from trusted channels as replacements (in 2 - 5
week intervals) for two of the Maxtors which went flaky after 4.5 years
of service. All showed usages hours starting from 1, confirming I am the
first user:

root@...amas:~# hdparm -iv /dev/sde

/dev/sde:
 IO_support    =  0 (default)
 readonly      =  0 (off)
 readahead     = 256 (on)
 geometry      = 30401/255/63, sectors = 488397168, start = 0

 Model=WDC WD2500AAJS-08B4A0                   , FwRev=01.03A01,
SerialNo=     WD-WMAT14036837
 Config={ HardSect NotMFM HdSw>15uSec SpinMotCtl Fixed DTR>5Mbs FmtGapReq }
 RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=50
 BuffType=unknown, BuffSize=8192kB, MaxMultSect=16, MultSect=?16?
 CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=488397168
 IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
 PIO modes:  pio0 pio3 pio4
 DMA modes:  mdma0 mdma1 mdma2
 UDMA modes: udma0 udma1 udma2 udma3 udma4 *udma5
 AdvancedPM=no WriteCache=enabled
 Drive conforms to: Unspecified:  ATA/ATAPI-1,2,3,4,5,6,7

 * signifies the current active mode

root@...amas:~#

root@...amas:~# hdparm -iv /dev/sdc

/dev/sdc:
 IO_support    =  0 (default)
 readonly      =  0 (off)
 readahead     = 256 (on)
 geometry      = 30401/255/63, sectors = 488397168, start = 0

 Model=WDC WD2500AAJS-00B4A0                   , FwRev=01.03A01,
SerialNo=     WD-WCAT11572764
 Config={ HardSect NotMFM HdSw>15uSec SpinMotCtl Fixed DTR>5Mbs FmtGapReq }
 RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=50
 BuffType=unknown, BuffSize=8192kB, MaxMultSect=16, MultSect=?16?
 CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=488397168
 IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
 PIO modes:  pio0 pio3 pio4
 DMA modes:  mdma0 mdma1 mdma2
 UDMA modes: udma0 udma1 udma2 udma3 udma4 *udma5 udma6
 AdvancedPM=no WriteCache=enabled
 Drive conforms to: Unspecified:  ATA/ATAPI-1,2,3,4,5,6,7

 * signifies the current active mode

root@...amas:~#

The 3rd drive is already gone back to MFG.

Peter

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