On Tue, May 4, 2010 at 10:19 AM, Tony MacDoodle <tpsdoo...@gmail.com> wrote:
> How would one determine if I should have a separate ZIL disk? We are using
> ZFS as the backend of our Guest Domains boot drives using LDom's. And we are
> seeing bad/very slow write performance?

There's a dtrace script that Richard Elling wrote called zilstat.ksh.
It's available at
http://www.richardelling.com/Home/scripts-and-programs-1/zilstat

I'm not sure what the numbers mean (there's info at the address) but
anything other than lots of 0s indicates that the ZIL is being used.

-B

-- 
Brandon High : bh...@freaks.com
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