I am now having the same issue. I am running FreeNAS 11.1-U7, with 12 disks in a RAID 10 with a mixture of ST3000DM001, ST5000DM000, ST6000DM003. System has been running for 4 years, originally FreeNAS 9.3. I have no Ironwolf drives in the system. The only change that has been made to the system recently was that about 2 weeks ago I had added (2) of the ST6000DM003 to the pool, these are the first ST6000DM003 to be added to the pool. Also, system was updated from 11.1-U6 in mid January. Controller is an LSI-920016e.
Output:
FreeNAS.local kernel log messages:
> (da1:mps0:0:9:0): WRITE(16). CDB: 8a 00 00 00 00 01 78 b2 8a 40 00 00 00 10 00 00 length 8192 SMID 198 terminated ioc 804b loginfo 31120303 scsi 0 state c xfer 0
> (da1:mps0:0:9:0): WRITE(16). CDB: 8a 00 00 00 00 01 78 b2 8a 40 00 00 00 10 00 00
> (da1:mps0:0:9:0): CAM status: CCB request completed with an error
> (da1:mps0:0:9:0): Retrying command
> (da1:mps0:0:9:0): WRITE(16). CDB: 8a 00 00 00 00 01 78 b2 8a 40 00 00 00 10 00 00
> (da1:mps0:0:9:0): CAM status: SCSI Status Error
> (da1:mps0:0:9:0): SCSI status: Check Condition
> (da1:mps0:0:9:0): SCSI sense: UNIT ATTENTION asc:29,0 (Power on, reset, or bus device reset occurred)
> (da1:mps0:0:9:0): Retrying command (per sense data)
> (da1:mps0:0:9:0): READ(10). CDB: 28 00 23 4c 22 38 00 00 08 00
> (da1:mps0:0:9:0): CAM status: SCSI Status Error
> (da1:mps0:0:9:0): SCSI status: Check Condition
> (da1:mps0:0:9:0): SCSI sense: UNIT ATTENTION asc:29,0 (Power on, reset, or bus device reset occurred)
> (da1:mps0:0:9:0): Retrying command (per sense data)
Not at home right now so I couldn't say which drive da1 is (it should be an ST5000DM000). Will update later.