On 9/16/05, George Kahler george@yorku.ca wrote: <wack>
- How long does the upgrade take ? The docs only say hours (in an event that I need to revert back)
The actual upgrade is quick, but the filesystem conversion takes the longest amount of time. Depending on load it can take many hours, but usually it takes less then 30 minutes (on an idle filer) . There should be a message in the messages file (or the console) that tells you it's done. At this point I'd like to berate on the NOW site team for after searching for 10 minutes, I am unable to locate a KB article that shows when the wafl upgrade is complete, when you move to 7g. That sucks.)
- Has anyone found a need to revert back ? Why ?
As with any new release, there are going to be bugs, or subtle changes, that may break things. Be on the look out, and test thoroughly after the upgrade, and before rolling into production. Reverting back is easy, but can only be done after the initial wafl upgrade is complete.
- Available Volume space I believe that as part of the upgrade DOT has to go and change all of the inodes. Are there any implications as far as available space in a volume ? Do I need to make sure that I have some n% of free space ?
Yes the inodes are bigger, but I don't think it affects your usable space much, if at all. I think NetApp says we need to have 10% free space for the 7g OnTap upgrade.
-Blake