I was reading the docs prior to upgrading to 5.2.3, and I realized that I get to upgrade everything, os, filer fw, and disk fw..
The thing that occured to me as unfortunate was from na_disk_fw_update(1):
This command makes disks inaccessible for up to 2 minutes, so network sessions using the filer should be closed down before running it.
I've only got 4 shelves, so its not a huge deal, but I could see this having a big impact in larger environments..
Obviously the disk has to be inaccesible during the period of the fw upgrade, but disabling file service necessary? The reason I ask is that the filer can already run short a disk following a failure, so why not copy this functionality so that disk_fw updates can be done without service disruption?
....just a'wonderin'..
...kg..