Richard Siemers wrote:
Can this be one just one host at a time?
I would have thought so, even with hosts in a host set, as I've seen VMware servers and a windows server in one before I think.
From a VMware cluster pov it would be fine doing it one at a time.
One thing to note though is if you had changed the default satp setting on the host via the cli, as the default behaviour has changed from active/active to ALUA.
With host persona 11 it would be
# esxcli storage nmp satp rule add -s "VMW_SATP_ALUA" -P "VMW_PSP_RR" -O iops=1 -c "tpgs_on" -V "3PARdata" -M "VV" -e "HP 3PAR Custom iSCSI/FC/FCoE ALUA Rule"
With persona 6 it would have been
# esxcli storage nmp satp rule add -s "VMW_SATP_DEFAULT_AA" -P "VMW_PSP_RR" -O iops=100 -c "tpgs_off" -V "3PARdata" -M "VV" -e "HP 3PAR Custom iSCSI/FC/FCoE ALUA Rule"
Also remember that the latest best practice also states that you should change the iops from 1000 to 1 (it used to be 100)