Hi all, I have just finished getting my system up and running on V6 and during the copy of new media on to the array, I encountered some write errors. When I woke up this morning, the copy was complete and the files seem to work, but my parity drive is showing as failed.

 

I did the SMART test and found no errors, so I took the drive out and I am almost done rebuilding a new parity disk before I do anything else that may alter the data on the old parity disk.

 

Doing a little research, I found this in the system log:

Dec 14 22:52:43 knox kernel: ata3.00: exception Emask 0x10 SAct 0x0 SErr 0x400100 action 0x6 frozen
Dec 14 22:52:43 knox kernel: ata3.00: irq_stat 0x08000000, interface fatal error
Dec 14 22:52:43 knox kernel: ata3: SError: { UnrecovData Handshk }
Dec 14 22:52:43 knox kernel: ata3.00: failed command: WRITE DMA EXT
Dec 14 22:52:43 knox kernel: ata3.00: cmd 35/00:40:40:d0:78/00:05:4d:00:00/e0 tag 25 dma 688128 out
Dec 14 22:52:43 knox kernel:         res 50/00:00:3f:d0:78/00:00:4d:00:00/e0 Emask 0x10 (ATA bus error)
Dec 14 22:52:43 knox kernel: ata3.00: status: { DRDY }
Dec 14 22:52:43 knox kernel: ata3: hard resetting link
Dec 14 22:52:43 knox kernel: ata3: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
Dec 14 22:52:43 knox kernel: ata3.00: configured for UDMA/133
Dec 14 22:52:43 knox kernel: ata3: EH complete
Dec 14 22:52:46 knox kernel: ata3.00: exception Emask 0x10 SAct 0x0 SErr 0x400100 action 0x6 frozen
Dec 14 22:52:46 knox kernel: ata3.00: irq_stat 0x08000000, interface fatal error
Dec 14 22:52:46 knox kernel: ata3: SError: { UnrecovData Handshk }
Dec 14 22:52:46 knox kernel: ata3.00: failed command: WRITE DMA EXT
Dec 14 22:52:46 knox kernel: ata3.00: cmd 35/00:40:90:bd:7b/00:05:4d:00:00/e0 tag 6 dma 688128 out
Dec 14 22:52:46 knox kernel:         res 50/00:00:8f:bd:7b/00:00:4d:00:00/e0 Emask 0x10 (ATA bus error)
Dec 14 22:52:46 knox kernel: ata3.00: status: { DRDY }
Dec 14 22:52:46 knox kernel: ata3: hard resetting link
Dec 14 22:52:46 knox kernel: ata3: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
Dec 14 22:52:46 knox kernel: ata3.00: configured for UDMA/133
Dec 14 22:52:46 knox kernel: ata3: EH complete
Dec 14 22:53:03 knox kernel: ata3.00: exception Emask 0x10 SAct 0x0 SErr 0x400100 action 0x6 frozen
Dec 14 22:53:03 knox kernel: ata3.00: irq_stat 0x08000000, interface fatal error
Dec 14 22:53:03 knox kernel: ata3: SError: { UnrecovData Handshk }
Dec 14 22:53:03 knox kernel: ata3.00: failed command: WRITE DMA EXT
Dec 14 22:53:03 knox kernel: ata3.00: cmd 35/00:40:98:f7:90/00:05:4d:00:00/e0 tag 29 dma 688128 out
Dec 14 22:53:03 knox kernel:         res 50/00:00:f7:18:91/00:00:4d:00:00/e0 Emask 0x10 (ATA bus error)
Dec 14 22:53:03 knox kernel: ata3.00: status: { DRDY }
Dec 14 22:53:03 knox kernel: ata3: hard resetting link
Dec 14 22:53:03 knox kernel: ata3: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
Dec 14 22:53:03 knox kernel: ata3.00: configured for UDMA/133
Dec 14 22:53:03 knox kernel: ata3: EH complete
Dec 14 22:53:29 knox kernel: ata3: limiting SATA link speed to 3.0 Gbps
Dec 14 22:53:29 knox kernel: ata3.00: exception Emask 0x10 SAct 0x0 SErr 0x400100 action 0x6 frozen
Dec 14 22:53:29 knox kernel: ata3.00: irq_stat 0x08000000, interface fatal error
Dec 14 22:53:29 knox kernel: ata3: SError: { UnrecovData Handshk }
Dec 14 22:53:29 knox kernel: ata3.00: failed command: WRITE DMA EXT
Dec 14 22:53:29 knox kernel: ata3.00: cmd 35/00:40:48:48:c0/00:05:4d:00:00/e0 tag 1 dma 688128 out
Dec 14 22:53:29 knox kernel:         res 50/00:00:3f:48:c0/00:00:4d:00:00/e0 Emask 0x10 (ATA bus error)
Dec 14 22:53:29 knox kernel: ata3.00: status: { DRDY }
Dec 14 22:53:29 knox kernel: ata3: hard resetting link
Dec 14 22:53:29 knox kernel: ata3: SATA link up 3.0 Gbps (SStatus 123 SControl 320)
Dec 14 22:53:29 knox kernel: ata3.00: configured for UDMA/133
Dec 14 22:53:29 knox kernel: ata3: EH complete
Dec 14 22:53:29 knox kernel: ata3.00: exception Emask 0x10 SAct 0x0 SErr 0x400100 action 0x6 frozen
Dec 14 22:53:29 knox kernel: ata3.00: irq_stat 0x08000000, interface fatal error
Dec 14 22:53:29 knox kernel: ata3: SError: { UnrecovData Handshk }
Dec 14 22:53:29 knox kernel: ata3.00: failed command: WRITE DMA EXT
Dec 14 22:53:29 knox kernel: ata3.00: cmd 35/00:40:18:aa:a7/00:05:4d:00:00/e0 tag 5 dma 688128 out
Dec 14 22:53:29 knox kernel:         res 50/00:00:87:4d:c0/00:00:4d:00:00/e0 Emask 0x10 (ATA bus error)
Dec 14 22:53:29 knox kernel: ata3.00: status: { DRDY }
Dec 14 22:53:29 knox kernel: ata3: hard resetting link
Dec 14 22:53:29 knox kernel: ata3: SATA link up 3.0 Gbps (SStatus 123 SControl 320)
Dec 14 22:53:29 knox kernel: ata3.00: configured for UDMA/133
Dec 14 22:53:29 knox kernel: ata3: EH complete
Dec 14 22:53:29 knox kernel: ata3.00: exception Emask 0x10 SAct 0x0 SErr 0x400100 action 0x6 frozen
Dec 14 22:53:29 knox kernel: ata3.00: irq_stat 0x08000000, interface fatal error
Dec 14 22:53:29 knox kernel: ata3: SError: { UnrecovData Handshk }
Dec 14 22:53:29 knox kernel: ata3.00: failed command: WRITE DMA EXT
Dec 14 22:53:29 knox kernel: ata3.00: cmd 35/00:40:08:5a:c0/00:05:4d:00:00/e0 tag 24 dma 688128 out
Dec 14 22:53:29 knox kernel:         res 50/00:00:8f:d1:a7/00:00:4d:00:00/e0 Emask 0x10 (ATA bus error)
Dec 14 22:53:29 knox kernel: ata3.00: status: { DRDY }
Dec 14 22:53:29 knox kernel: ata3: hard resetting link
Dec 14 22:53:30 knox kernel: ata3: SATA link up 3.0 Gbps (SStatus 123 SControl 320)
Dec 14 22:53:30 knox kernel: ata3.00: configured for UDMA/133
Dec 14 22:53:30 knox kernel: ata3: EH complete
Dec 14 22:53:30 knox kernel: ata3.00: exception Emask 0x10 SAct 0x0 SErr 0x400100 action 0x6 frozen
Dec 14 22:53:30 knox kernel: ata3.00: irq_stat 0x08000000, interface fatal error
Dec 14 22:53:30 knox kernel: ata3: SError: { UnrecovData Handshk }
Dec 14 22:53:30 knox kernel: ata3.00: failed command: WRITE DMA EXT
Dec 14 22:53:30 knox kernel: ata3.00: cmd 35/00:40:18:75:c0/00:05:4d:00:00/e0 tag 23 dma 688128 out
Dec 14 22:53:30 knox kernel:         res 50/00:00:c7:e3:a7/00:00:4d:00:00/e0 Emask 0x10 (ATA bus error)
Dec 14 22:53:30 knox kernel: ata3.00: status: { DRDY }
Dec 14 22:53:30 knox kernel: ata3: hard resetting link
Dec 14 22:53:30 knox kernel: ata3: SATA link up 3.0 Gbps (SStatus 123 SControl 320)
Dec 14 22:53:30 knox kernel: ata3.00: configured for UDMA/133
Dec 14 22:53:30 knox kernel: ata3: EH complete
Dec 14 22:53:31 knox kernel: ata3: limiting SATA link speed to 1.5 Gbps
Dec 14 22:53:31 knox kernel: ata3.00: exception Emask 0x10 SAct 0x0 SErr 0x400100 action 0x6 frozen
Dec 14 22:53:31 knox kernel: ata3.00: irq_stat 0x08000000, interface fatal error
Dec 14 22:53:31 knox kernel: ata3: SError: { UnrecovData Handshk }
Dec 14 22:53:31 knox kernel: ata3.00: failed command: WRITE DMA EXT
Dec 14 22:53:31 knox kernel: ata3.00: cmd 35/00:40:a0:38:a8/00:05:4d:00:00/e0 tag 22 dma 688128 out
Dec 14 22:53:31 knox kernel:         res 50/00:00:9f:38:a8/00:00:4d:00:00/e0 Emask 0x10 (ATA bus error)
Dec 14 22:53:31 knox kernel: ata3.00: status: { DRDY }
Dec 14 22:53:31 knox kernel: ata3: hard resetting link
Dec 14 22:53:33 knox kernel: ata3: SATA link down (SStatus 1 SControl 310)
Dec 14 22:53:33 knox kernel: ata3: hard resetting link
Dec 14 22:53:35 knox kernel: ata3: SATA link down (SStatus 1 SControl 310)
Dec 14 22:53:35 knox kernel: ata3: hard resetting link
Dec 14 22:53:37 knox kernel: ata3: SATA link down (SStatus 1 SControl 310)
Dec 14 22:53:37 knox kernel: ata3.00: disabled
Dec 14 22:53:37 knox kernel: sd 4:0:0:0: [sdb] tag#22 UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08
Dec 14 22:53:37 knox kernel: sd 4:0:0:0: [sdb] tag#22 Sense Key : 0x5 [current] [descriptor]
Dec 14 22:53:37 knox kernel: sd 4:0:0:0: [sdb] tag#22 ASC=0x21 ASCQ=0x4
Dec 14 22:53:37 knox kernel: sd 4:0:0:0: [sdb] tag#22 CDB: opcode=0x8a 8a 00 00 00 00 00 4d a8 38 a0 00 00 05 40 00 00
Dec 14 22:53:37 knox kernel: blk_update_request: I/O error, dev sdb, sector 1302870176
Dec 14 22:53:37 knox kernel: md: disk0 write error, sector=1302870112
Dec 14 22:53:37 knox kernel: md: recovery thread woken up ...
Dec 14 22:53:37 knox kernel: md: disk0 write error, sector=1302870120
Dec 14 22:53:37 knox kernel: md: disk0 write error, sector=1302870128
Dec 14 22:53:37 knox kernel: md: disk0 write error, sector=1302870136
Dec 14 22:53:37 knox kernel: md: disk0 write error, sector=1302870144
Dec 14 22:53:37 knox kernel: md: disk0 write error, sector=1302870152
... with 500 more write errors

 

Is the disk kaput? (12 days outside my warranty of course!) once I have my new parity disk should I try preclearing the old disk and use it again? I could tell the system the parity is valid and run a check, but I have a feeling the errors mean that even if the drive is perfect, the old parity data is no good. Is there a test I can do on the old parity disk to check it for faults? I guess it's just raw 1s and 0s, not a normal file system, so is there anything i can do?

 

Your thoughts would be appreciated even if you don't have full answer.

 

whiteatom

 

 

Those look like the sort of errors you might get if a SATA (or Power) cable is slightly loose.  I suspect that the actual disk itself is fine.

I will check that first thing in the morning - am i correct that my parity data on that disk is shot though?

I will check that first thing in the morning - am i correct that my parity data on that disk is shot though?

If by this

... but my parity drive is showing as failed...

you mean it has a red x next to it then you have no choice but to rebuild parity.