"Virtual Disk not on preferred path due to AVT/RDAC failover" on MD3000i Storage Array
Posted on 2013-06-11
We had our MD3000i connected to an ESXi 4.1 host, which was exclusively used by a VM on it which was our file server. After a recent reboot, this file server went loopy, so we have to rebuild it!
I rebuilt it on another ESXi 5.0 host and at first it looked to work ok and on the face of it, it is working ok, but the Modular Disk Storage Manager is saying that Array is non optimal.
Further investigation shows that the virtual disks configured with preferred controller 1 are all residing on controller 0! If I manually change them back to 1, they change back to 0.
Nothing suggests a hardware fault at this stage, but in the error logs it refers to a AVT/RDAC failover. The full error states:
Date/Time: 11/06/13 14:41:50
Sequence number: 10818
Event type: 4011
Description: Virtual Disk not on preferred path due to AVT/RDAC failover
Event specific codes: 0/0/0
Event category: Error
Component type: RAID Controller Module
Component location: RAID Controller Module in slot 0
Logged by: RAID Controller Module in slot 0
I would call Dell, but our support has just ran out and I'm cant rely on the company renewing it in a hurry, so any tips would be appreciated.