On Mon, Jan 29, 2007 at 11:17:05AM -0800, Jeffery Malloch wrote:
> From what I can tell from this thread ZFS if VERY fussy about
> managing writes,reads and failures.  It wants to be bit perfect.  So
> if you use the hardware that comes with a given solution (in my case
> an Engenio 6994) to manage failures you risk a) bad writes that
> don't get picked up due to corruption from write cache to disk b)
> failures due to data changes that ZFS is unaware of that the
> hardware imposes when it tries to fix itself.
> 
> So now I have a $70K+ lump that's useless for what it was designed
> for.  I should have spent $20K on a JBOD.  But since I didn't do
> that, it sounds like a traditional model works best (ie. UFS et al)
> for the type of hardware I have.  No sense paying for something and
> not using it.  And by using ZFS just as a method for ease of file
> system growth and management I risk much more corruption.

Well, ZFS with HW RAID makes sense in some cases. However, it seems
that if you are unwilling to lose 50% disk space to RAID 10 or two
mirrored HW RAID arrays, you either use RAID 0 on the array with ZFS
RAIDZ/RAIDZ2 on top of that or a JBOD with ZFS RAIDZ/RAIDZ2 on top of
that.

-- 
albert chin ([EMAIL PROTECTED])
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