Missing files in the pool

[vanceMM]

in my tRaid config with 4 drives and 1 parity the files of one of the data files are missing in the pool. none of the drives is dropped. stopping and starting the array doesn't help the files don't appear in the pool. any ideas on this issue?

[Brahim]

Make sure that disk is properly partitioned and has a partition label as per the wiki instructions.

[vanceMM]

Ok, sorry that i might have formulated the issue incorrectly. The Array was setup following the steps in the Wiki. The Array was initialized and started correctly. But after a day or two the files of one of the drives were missing(without any drives dropped). I removed the array completely and recreated and initialized by doing nothing. No missing files so far. Should I verify and sync now to create parity?

best Regards
vanceMM

[Brahim]

You should Verify & Sync. Look into the system logs for clues as to what might have happened.

[vanceMM]

the Parity Disk just dropped, and the files of one of the data drives have disappeared. Any suggestions what I should look for in the syslog?

Feb 12 22:53:54 valentin-server kernel: [92226.741507] Write(16): 8a 00 00 00 00 00 0e 2b 3e d0 00 00 03 00 00 00
Feb 12 22:53:54 valentin-server kernel: [92226.741583] sd 8:0:0:0: [sdd] Unhandled error code
Feb 12 22:53:54 valentin-server kernel: [92226.741586] sd 8:0:0:0: [sdd] 
Feb 12 22:53:54 valentin-server kernel: [92226.741588] Result: hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK
Feb 12 22:53:54 valentin-server kernel: [92226.741590] sd 8:0:0:0: [sdd] CDB:
Feb 12 22:53:54 valentin-server kernel: [92226.741592] Write(16): 8a 00 00 00 00 00 ae 86 81 90 00 00 00 c0 00 00
Feb 12 22:53:54 valentin-server kernel: [92226.741623] sd 8:0:0:0: [sdd] Unhandled error code
Feb 12 22:53:54 valentin-server kernel: [92226.741626] sd 8:0:0:0: [sdd] 
Feb 12 22:53:54 valentin-server kernel: [92226.741627] Result: hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK
Feb 12 22:53:54 valentin-server kernel: [92226.741630] sd 8:0:0:0: [sdd] CDB:
Feb 12 22:53:54 valentin-server kernel: [92226.741632] Write(16): 8a 00 00 00 00 00 c5 84 33 d8 00 00 00 08 00 00
Feb 12 22:54:24 valentin-server kernel: [92257.108855] sd 8:0:0:0: [sdd] Unhandled error code
Feb 12 22:54:24 valentin-server kernel: [92257.108862] sd 8:0:0:0: [sdd] 
Feb 12 22:54:24 valentin-server kernel: [92257.108865] Result: hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK
Feb 12 22:54:24 valentin-server kernel: [92257.108868] sd 8:0:0:0: [sdd] CDB:
Feb 12 22:54:24 valentin-server kernel: [92257.108871] Write(16): 8a 00 00 00 00 00 00 00 08 40 00 00 00 08 00 00
Feb 12 22:54:24 valentin-server kernel: [92257.108883] blk_update_request: 4 callbacks suppressed
Feb 12 22:54:24 valentin-server kernel: [92257.108886] end_request: I/O error, dev sdd, sector 2112
Feb 12 22:54:24 valentin-server kernel: [92257.108890] quiet_error: 1519 callbacks suppressed
Feb 12 22:54:24 valentin-server kernel: [92257.108893] Buffer I/O error on device sdd, logical block 264
Feb 12 22:54:24 valentin-server kernel: [92257.108895] lost page write due to I/O error on sdd
Feb 12 22:54:24 valentin-server kernel: [92257.108911] sd 8:0:0:0: [sdd] Unhandled error code
Feb 12 22:54:24 valentin-server kernel: [92257.108914] sd 8:0:0:0: [sdd] 
Feb 12 22:54:24 valentin-server kernel: [92257.108916] Result: hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK
Feb 12 22:54:24 valentin-server kernel: [92257.108919] sd 8:0:0:0: [sdd] CDB:
Feb 12 22:54:24 valentin-server kernel: [92257.108920] Write(16): 8a 00 00 00 00 00 0e 00 08 50 00 00 00 08 00 00
Feb 12 22:54:24 valentin-server kernel: [92257.108931] end_request: I/O error, dev sdd, sector 234883152
Feb 12 22:54:24 valentin-server kernel: [92257.108934] Buffer I/O error on device sdd, logical block 29360394
Feb 12 22:54:24 valentin-server kernel: [92257.108936] lost page write due to I/O error on sdd
Feb 12 22:54:24 valentin-server kernel: [92257.108950] sd 8:0:0:0: [sdd] Unhandled error code
Feb 12 22:54:24 valentin-server kernel: [92257.108953] sd 8:0:0:0: [sdd] 
Feb 12 22:54:24 valentin-server kernel: [92257.108955] Result: hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK
Feb 12 22:54:24 valentin-server kernel: [92257.108958] sd 8:0:0:0: [sdd] CDB:
Feb 12 22:54:24 valentin-server kernel: [92257.108960] Write(16): 8a 00 00 00 00 00 0e 2a e2 f8 00 00 04 00 00 00
Feb 12 22:54:24 valentin-server kernel: [92257.108970] end_request: I/O error, dev sdd, sector 237691640
Feb 12 22:54:24 valentin-server kernel: [92257.108973] Buffer I/O error on device sdd, logical block 29711455
Feb 12 22:54:24 valentin-server kernel: [92257.108975] lost page write due to I/O error on sdd
Feb 12 22:54:24 valentin-server kernel: [92257.108979] Buffer I/O error on device sdd, logical block 29711456
Feb 12 22:54:24 valentin-server kernel: [92257.108981] lost page write due to I/O error on sdd
Feb 12 22:54:24 valentin-server kernel: [92257.108985] Buffer I/O error on device sdd, logical block 29711457
Feb 12 22:54:24 valentin-server kernel: [92257.108987] lost page write due to I/O error on sdd
Feb 12 22:54:24 valentin-server kernel: [92257.108989] Buffer I/O error on device sdd, logical block 29711458
Feb 12 22:54:24 valentin-server kernel: [92257.108991] lost page write due to I/O error on sdd
Feb 12 22:54:24 valentin-server kernel: [92257.108995] Buffer I/O error on device sdd, logical block 29711459
Feb 12 22:54:24 valentin-server kernel: [92257.108997] lost page write due to I/O error on sdd
Feb 12 22:54:24 valentin-server kernel: [92257.109000] Buffer I/O error on device sdd, logical block 29711460
Feb 12 22:54:24 valentin-server kernel: [92257.109002] lost page write due to I/O error on sdd
Feb 12 22:54:24 valentin-server kernel: [92257.109004] Buffer I/O error on device sdd, logical block 29711461
Feb 12 22:54:24 valentin-server kernel: [92257.109006] lost page write due to I/O error on sdd
Feb 12 22:54:24 valentin-server kernel: [92257.109009] Buffer I/O error on device sdd, logical block 29711462
Feb 12 22:54:24 valentin-server kernel: [92257.109011] lost page write due to I/O error on sdd

ok looks like there is some I/O error stuff going on, think i will replace the drive and see if this fixes the issues.

[vanceMM]

I copied the Data from the Drive producing errors and replaced it, however that drive was not the one with the missing files. I will start the array again and see if it works.