8.0 > 8.3.2 should i zpool upgrade?

[codenamezero]

So finally got around and got the 8.3.2 running, now when I login, the alert show me that i should zpool upgrade.

Before I do that, I just want to know would i risk loose anything data?

 

[codenamezero]

Actually, just web upgraded 8.3.2 to 9.2.1, but question remains the same for the zpool thing...

 

[cyberjock]

Well, there is no going back once you do it. So only do the upgrade once you are 100% sure that there are no bugs that are going to make you wish you didn't do the upgrade. Personally, I would have upgraded your zpool with 8.3.2 to v28, then upgraded to 9.2.1 and left the pool at v28. I'm still at v28 and I have no intention of upgrading right now or in the near future. You can't upgrade to v28 with 9.2.1. You can only upgrade to v5000.

 

[codenamezero]

o..k... so can i downgrade it back to 8.3.2 then do that upgrade? what is the command line to trigger the upgrade?
and what is the risk involved?

 

[cyberjock]

yes, you could go back to 8.3.2 by installing it on another USB stick.

the command is something like:

zpool upgrade poolname.

The risk is that if your pool has some kind of corruption it could in theory make things much worse. I've never heard of anyone ever having a problem with a pool upgrade, but in theory it is possible. Your best course of action would be to do a scrub first, then if everything works out do the zpool upgrade.

 

[codenamezero]

I see the scrub option in 9.2.1 as well, can I just scrub in 9.2.1 then try to upgrade it in 8.3.2?

Thank you for the help