Help, this has been happening so many times over the years, getting a little X by a hard drive saying its been taken out of the array. When I do a SMART scan and a preclear there are no issues revealed and adding the disk back into the array works. Then another disk will fail like this a few months later...  I have provided the disk extract below - very very grateful for any help:

 

Nov 4 10:47:28 FoxServer kernel: sd 1:0:9:0: [sdl] tag#0 CDB: opcode=0x35 35 00 00 00 00 00 00 00 00 00
Nov 4 10:47:36 FoxServer kernel: sd 1:0:9:0: [sdl] Synchronizing SCSI cache
Nov 4 10:47:36 FoxServer kernel: sd 1:0:9:0: [sdl] tag#0 UNKNOWN(0x2003) Result: hostbyte=0x01 driverbyte=0x00
Nov 4 10:47:36 FoxServer kernel: sd 1:0:9:0: [sdl] tag#0 CDB: opcode=0x35 35 00 00 00 00 00 00 00 00 00
Nov 4 10:47:36 FoxServer kernel: print_req_error: I/O error, dev sdl, sector 0
Nov 4 10:47:36 FoxServer kernel: print_req_error: I/O error, dev sdl, sector 0
Nov 4 10:47:36 FoxServer kernel: sd 1:0:9:0: [sdl] Synchronize Cache(10) failed: Result: hostbyte=0x01 driverbyte=0x00

foxserver-diagnostics-20181104-1317.zip

Edited November 4, 20187 yr by Zangief
more screenshots

Please post your diagnostics: Tools -> Diagnostics

Yes it was already posted ... I think there is a link already to them? (in between the two screenshots)

Thank you

Edited November 4, 20187 yr by Zangief

Yes, sorry, missed them between the screenshots.

 

Looks like a connection problem, like the disk was disconnected, I assume the errors have been happening with different disks, if yes it could be a power issue, controller, cables, expander, very difficult to diagnose without starting swapping things around.