Hello,
We had a failing iSCSI array (MD3220i) so I began the process of configuring a replacement array (also MD3220i) with identical disk pools, etc.
As we migrated VM's from the old datastore to the new, we noticed poor performance and I began to look through my configuration. My old path settings were set to Round Robin (all four paths state "Active (I/O)", while my new array appears to have been configured as MRU (all four paths show "Active", only one shows "Active (I/O)".
Question: Should the VM's be off and host in maintenance mode before choosing Round Robin as the path selection?
Thanks in advance,
Kevin