I am using fas3140 with controllers enabled in failover mode (in case). On one of the controller (to which I will be running most of the traffic), I have created a separate volume (say /vol/xxyy) other than the root vol. Once the volume and LUNs(around 150 of size 2g each) are created and mapped to my igroup, I started running traffic from my FCoE initiator. It is observed that after sometime the filer started reporting errors saying three disks on that controller's bay are being broken and failover mode in kicks and the other controller takes over.
Why is this happening? I removed those three disks and started running traffic, It ran fine for couple of days but again I see few more discs being reported as byte segment failed,excessive errors encountered or scsi transport command failed and failover occurs. Is my config wrong or the discs have just gone bad?.