Hi Klemen
Yes we did the swap
Here are the steps followed:
Update FAS3020 to the last DOT 7.3.7P1
disable HA (cf disable)
check root volume to be at least 250GB
make a note of rc and hosts file
check is disk owner ship for FAS3020 is hardware or software
If it's hardware, boot FAS3020 into maintenance mode and convert to software disk ownership with disk upgrade_ownership command
replace FAS3020 with brand new FAS32xx
Boot FAS32xx to maintenance mode and reassign disk to the controller (command disk reassign -s old-systemID -d new-systemID
Then type the following commands if you replace HA Pair (storage release disks , mailbox destroy local, mailbox destroy partner)
Check that aggregate are ok (aggr status)
Then exit maintenant mode (halt)
boot FAS32xx
During the first boot, raid label are update + some message on aggregate
When FAS32xx is load, you do an upgrade to refresh root volume with DOT8 ( software update 81xxx.tgz)
Same work on the second FAS32xx
Boot both controller
Make some verification/test
Modify rc file and replace vif command by ifgrp
put FAS32xx license you should have received with you new FAS
And finally enable cluster (cf enable)
Before head swap we also made a note of lun serial in case
But serial numbers have not been modified by the swap
Also check if you Brocade switch zone configuration doesn't need update with new WWPN
Regards