Had a power outage last night and one of my SAS drives was disabled upon reboot. Thankfully there wasn't any data on it yet so I'm not losing anything. Here's what appears in the disc log information.

Nov 13 10:05:40 Waffle kernel: sd 7:0:0:0: [sdb] Spinning up disk...
Nov 13 10:05:40 Waffle kernel: sd 7:0:0:0: [sdb] Read Capacity(16) failed: Result: hostbyte=0x00 driverbyte=0x08
Nov 13 10:05:40 Waffle kernel: sd 7:0:0:0: [sdb] Sense Key : 0x2 [current] [descriptor]
Nov 13 10:05:40 Waffle kernel: sd 7:0:0:0: [sdb] ASC=0x4 ASCQ=0x0
Nov 13 10:05:40 Waffle kernel: sd 7:0:0:0: [sdb] Read Capacity(10) failed: Result: hostbyte=0x00 driverbyte=0x08
Nov 13 10:05:40 Waffle kernel: sd 7:0:0:0: [sdb] Sense Key : 0x2 [current] [descriptor]
Nov 13 10:05:40 Waffle kernel: sd 7:0:0:0: [sdb] ASC=0x4 ASCQ=0x0
Nov 13 10:05:40 Waffle kernel: sd 7:0:0:0: [sdb] 0 512-byte logical blocks: (0 B/0 B)
Nov 13 10:05:40 Waffle kernel: sd 7:0:0:0: [sdb] 0-byte physical blocks
Nov 13 10:05:40 Waffle kernel: sd 7:0:0:0: [sdb] Test WP failed, assume Write Enabled
Nov 13 10:05:40 Waffle kernel: sd 7:0:0:0: [sdb] Asking for cache data failed
Nov 13 10:05:40 Waffle kernel: sd 7:0:0:0: [sdb] Assuming drive cache: write through
Nov 13 10:05:40 Waffle kernel: sd 7:0:0:0: [sdb] Spinning up disk...
Nov 13 10:07:01 Waffle kernel: sd 7:0:0:0: [sdb] Read Capacity(16) failed: Result: hostbyte=0x00 driverbyte=0x08
Nov 13 10:07:01 Waffle kernel: sd 7:0:0:0: [sdb] Sense Key : 0x2 [current] [descriptor]
Nov 13 10:07:01 Waffle kernel: sd 7:0:0:0: [sdb] ASC=0x4 ASCQ=0x0
Nov 13 10:07:01 Waffle kernel: sd 7:0:0:0: [sdb] Read Capacity(10) failed: Result: hostbyte=0x00 driverbyte=0x08
Nov 13 10:07:01 Waffle kernel: sd 7:0:0:0: [sdb] Sense Key : 0x2 [current] [descriptor]
Nov 13 10:07:01 Waffle kernel: sd 7:0:0:0: [sdb] ASC=0x4 ASCQ=0x0
Nov 13 10:07:01 Waffle kernel: sd 7:0:0:0: [sdb] Attached SCSI disk
Nov 13 10:07:21 Waffle emhttpd: device /dev/sdb has size zero

 

In the "Unassigned Devices" section, the drive shows a size of 0 B. Here's what it looks like. Does it look like it needs to be replaced?

 

Any help would be appreciated!

 

Diagnostics zip:

https://drive.google.com/file/d/1cJ1QMw1pfNhtPnVloIA9kBjcp66S1T00/view?usp=sharing

 

 

Swap cables with another the drive to confirm.

Hello, I swapped cables with a working drive and got the same error from the drive.

The it's likely a drive problem.

buy a UPS, save yourself these sort of headaches