Date: Sat, 3 Jul 2010 19:44:57 -0700 (PDT) From: Bucarr <bucarr@gmail.com> To: freebsd-fs@freebsd.org Subject: Re: zfs on 4k sector disks Message-ID: <29067121.post@talk.nabble.com> In-Reply-To: <20100704005336.00003234@unknown> References: <e7531071831ef4c088902a8b5fe94dab, 4B7FAF99.10308@debank.tv> <29065362.post@talk.nabble.com> <20100704005336.00003234@unknown>
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On Sat, 3 Jul 2010 11:28:03 -0700 (PDT)
Bucarr <bucarr@gmail.com> wrote:
> I was wondering that as well. So I set up a new FreeBSD8.0 box with
> a UFS2 disk as my boot disk and two WD 2TB EARS drives ("Advanced
> Format") for a zfs data array. I made no attempt to alter the WD
> drives in any way and ignored the 512b vs 4096b issues. 'zpool
> create tank raidz da0 da1' set up the array in a few seconds and I've
> copied to/from with no troubles and no apparent performance issues
> that I care about. If I had more of the WD drives lying around, I'd
> add those to the array and see what gives then.
I suspect the performance may be acceptable, but probably not great.
I thought I didn't have any problems with RAIDZ's variable stripe size
on my EARS drives either until I found some writes would suddenly take
ages to finish, causing applications to hang.
--
Bruce Cran
I wonder if my 2 drive experiment in RAIDZ didn't simply mirror the drives
so that striping wasn't invoked at all?
--
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