From owner-freebsd-fs@FreeBSD.ORG  Wed May 27 04:15:47 2009
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From: Randy Bush <randy@psg.com>
To: Kai Gallasch <gallasch@free.de>
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Cc: freebsd-fs@freebsd.org
Subject: Re: RFT: ZFS MFC
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> Should a ZFS v6 pool be upgraded through 'zpool upgrade' while in use?

i did it in single luser, no problem

> My old loader.conf (7.2-STABLE-amd64) settings for zfs:
> 
> vm.kmem_size="3072M"
> vm.kmem_size_max="3072M"
> vfs.zfs.arc_min="120795878"
> vfs.zfs.arc_max="2899101078"
> # more stability?
> vfs.zfs.prefetch_disable=1

i believed UPDATING and tried, only keeping the last.  has not crashed.

> Thanks for MFC'ing v13 for RELENG_7 !!

indeed!

randy