hi, can someone explain this error?

error Nov 29 01:56:18 dss kernel: arcmsr0: abort device command of scsi id=0 lun=1
error Nov 29 01:56:18 dss kernel: arcmsr0: abort device command of scsi id=0 lun=0

The system details:

Intel S5000 chipset
Areca 1260 with Battery.
10x Seagate 1TB disks.
Redundant 2+1 650 Watt Power supply.

The error comes when we transfer a lot of data. Open-E DSS abort the iscsi connection because my data is not reliable anymore.

Regards,
UPservers