CAM status: SCSI Status Error

[junior466]

I understand there are a few threads on the subject but I don't see one quite like mine. I have an external drive that I use to replicate some snapshots to and lately I started seeing the following message (error?) in my logs:

Dec 26 09:00:13 freenas (da4:umass-sim0:0:0:0): WRITE(10). CDB: 2a 00 c2 40 2e f8 00 00 08 00
Dec 26 09:00:13 freenas (da4:umass-sim0:0:0:0): CAM status: SCSI Status Error
Dec 26 09:00:13 freenas (da4:umass-sim0:0:0:0): SCSI status: Check Condition
Dec 26 09:00:13 freenas (da4:umass-sim0:0:0:0): SCSI sense: NOT READY asc:4,1 (Logical unit is in process of becoming ready)
Dec 26 09:00:13 freenas (da4:umass-sim0:0:0:0): Polling device for readiness

After the messages appear, the replication runs just fine but I have no idea why suddenly it started showing. I am running FreeNAS on a Dell T320 with two mirror vdevs with 16GB or RAM. Smart is throwing no errors.

Is this a sign for concern?

 

[sretalla]

Your USB-SATA controller is starting to die. This is a usual consequence of running USB drives with heavy IO on FreeNAS. It's probably a Marvell chip.

The data on the drive is safe, but you should consider finding a more reliable way to connect it.

 

[junior466]

Your USB-SATA controller is starting to die. This is a usual consequence of running USB drives with heavy IO on FreeNAS. It's probably a Marvell chip.

The data on the drive is safe, but you should consider finding a more reliable way to connect it.

Interesting! I will definitely find a better way. Thank you for your help!