Got this on sdc on ms-be2018
```
[1253680.896930] blk_update_request: critical medium error, dev sdc, sector 29967904
[1253680.935044] XFS (sdc1): metadata I/O error: block 0x1c94420 ("xfs_trans_read_buf_map") error 61 numblks 16
[1253680.985248] XFS (sdc1): xfs_imap_to_bp: xfs_trans_read_buf() returned error -61.
[1253681.061231] sd 0:1:0:2: [sdc] tag#9 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[1253681.061246] sd 0:1:0:2: [sdc] tag#9 Sense Key : Medium Error [current]
[1253681.061247] sd 0:1:0:2: [sdc] tag#9 Add. Sense: Unrecovered read error
[1253681.061250] sd 0:1:0:2: [sdc] tag#9 CDB: Read(16) 88 00 00 00 00 00 01 c9 46 20 00 00 00 10 00 00
[1253681.061252] blk_update_request: critical medium error, dev sdc, sector 29967904
[1253681.098813] XFS (sdc1): metadata I/O error: block 0x1c94420 ("xfs_trans_read_buf_map") error 61 numblks 16
[1253681.149788] XFS (sdc1): xfs_imap_to_bp: xfs_trans_read_buf() returned error -61.
[1253681.153600] sd 0:1:0:2: [sdc] tag#10 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[1253681.153604] sd 0:1:0:2: [sdc] tag#10 Sense Key : Medium Error [current]
[1253681.153607] sd 0:1:0:2: [sdc] tag#10 Add. Sense: Unrecovered read error
[1253681.153768] sd 0:1:0:2: [sdc] tag#10 CDB: Read(16) 88 00 00 00 00 00 01 c9 46 20 00 00 00 10 00 00
[1253681.153771] blk_update_request: critical medium error, dev sdc, sector 29967904
[1253681.193939] XFS (sdc1): metadata I/O error: block 0x1c94420 ("xfs_trans_read_buf_map") error 61 numblks 16
[1253681.243671] XFS (sdc1): xfs_imap_to_bp: xfs_trans_read_buf() returned error -61.
[1256194.315755] XFS (sdc1): Unmounting Filesystem
[1256257.495968] sdc: sdc1
[1256257.551790] sdc: sdc1
[1256257.808014] XFS (sdc1): Mounting V4 Filesystem
[1256258.018389] XFS (sdc1): Ending clean mount
[1264045.229079] Process accounting resumed
[1266462.161822] sd 0:1:0:2: [sdc] tag#25 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[1266462.161826] sd 0:1:0:2: [sdc] tag#25 Sense Key : Medium Error [current]
[1266462.161828] sd 0:1:0:2: [sdc] tag#25 Add. Sense: Unrecovered read error
[1266462.161831] sd 0:1:0:2: [sdc] tag#25 CDB: Read(16) 88 00 00 00 00 00 01 c9 46 20 00 00 00 10 00 00
[1266462.161832] blk_update_request: critical medium error, dev sdc, sector 29967904
[1266462.199375] XFS (sdc1): metadata I/O error: block 0x1c94420 ("xfs_trans_read_buf_map") error 61 numblks 16
[1266462.249089] XFS (sdc1): xfs_imap_to_bp: xfs_trans_read_buf() returned error -61.
[1270707.824715] XFS (sdc1): Unmounting Filesystem
[1271077.304339] sdc: sdc1
[1271077.356959] sdc: sdc1
[1271077.588384] XFS (sdc1): Mounting V4 Filesystem
[1271077.764019] XFS (sdc1): Ending clean mount
[1278338.521169] sd 0:1:0:2: [sdc] tag#16 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[1278338.521172] sd 0:1:0:2: [sdc] tag#16 Sense Key : Medium Error [current]
[1278338.521174] sd 0:1:0:2: [sdc] tag#16 Add. Sense: Unrecovered read error
[1278338.521177] sd 0:1:0:2: [sdc] tag#16 CDB: Read(16) 88 00 00 00 00 00 01 c9 46 20 00 00 00 10 00 00
[1278338.521178] blk_update_request: critical medium error, dev sdc, sector 29967904
[1278338.560014] XFS (sdc1): metadata I/O error: block 0x1c94420 ("xfs_trans_read_buf_map") error 61 numblks 16
[1278338.611190] XFS (sdc1): xfs_imap_to_bp: xfs_trans_read_buf() returned error -61.
```
Although the controller thinks the disk is fine. I've blinked the drive
```
=> ld 3 show
Smart Array P840 in Slot 3
array C
Logical Drive: 3
Size: 3.6 TB
Fault Tolerance: 0
Heads: 255
Sectors Per Track: 32
Cylinders: 65535
Strip Size: 256 KB
Full Stripe Size: 256 KB
Status: OK
MultiDomain Status: OK
Caching: Enabled
Unique Identifier: 600508B1001C75465B7444FD0DFD4FE9
Disk Name: /dev/sdc
Mount Points: None
Drive Type: Data
LD Acceleration Method: Controller Cache
=> ld 3 modify led=on
=>
```