Hi all

One of my disks was marked red and removed from the Array.

Jun 28 11:51:42 Tower kernel: blk_update_request: I/O error, dev sdf, sector 1803281984
Jun 28 11:51:42 Tower kernel: md: disk3 read error, sector=1803281920
Jun 28 11:51:49 Tower kernel: sd 1:0:0:0: [sdf] tag#0 UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08
Jun 28 11:51:49 Tower kernel: sd 1:0:0:0: [sdf] tag#0 Sense Key : 0x2 [current] 
Jun 28 11:51:49 Tower kernel: sd 1:0:0:0: [sdf] tag#0 ASC=0x4 ASCQ=0x0 
Jun 28 11:51:49 Tower kernel: sd 1:0:0:0: [sdf] tag#0 CDB: opcode=0x8a 8a 00 00 00 00 00 6b 7b e6 40 00 00 00 08 00 00
Jun 28 11:51:49 Tower kernel: blk_update_request: I/O error, dev sdf, sector 1803281984
Jun 28 11:51:49 Tower kernel: md: disk3 write error, sector=1803281920

From the log it seems like it failed to read and then write to disk. I run a short smart test, and it completed successfully, so I was wondering if it's something wrong with the disk, or could it be a problem with the cables.

 

This disk is the only one that is attached to a H310 controller and not directly the motherboard with the original supplied sata cables.

Also, 2 months ago I got an alert about read errors during a parity sync and back then I replaced the disk, but I think that one  was also connected to the HBA, so maybe it's not a coincidence.

 

I still haven't rebooted the server, so the disk is still emulated. Should I replace the disk, or restart and see if the disk gets mounted?

 

tower-diagnostics-20170628-1159.zip

7 minutes ago, Dagarth said:

or restart and see if the disk gets mounted?

 

Disk is already mounted using the emulated disk, you'll need to rebuild it using the same or a new disk.

 

Since SMART looks fine I would swap positions between this disk and one connected to the onboard controller and rebuild, swap both cables, if same disk fails again replace it, if the swapped one fails, replace cables.

Edited June 29, 20179 yr by johnnie.black

Thanks. I'll connect it to the internal controller, rebuilt the disk and replace the cables to be sure.