Date: Sun, 31 May 2009 23:57:27 +0200 (CEST) From: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl> To: xorquewasp@googlemail.com Cc: freebsd-hackers@freebsd.org, krad <kraduk@googlemail.com> Subject: Re: Request for opinions - gvinum or ccd? Message-ID: <alpine.BSF.2.00.0905312355240.26545@wojtek.tensor.gdynia.pl> In-Reply-To: <20090531201445.GA82420@logik.internal.network> References: <20090530175239.GA25604@logik.internal.network> <20090530144354.2255f722@bhuda.mired.org> <20090530191840.GA68514@logik.internal.network> <20090530162744.5d77e9d1@bhuda.mired.org> <A5BB2D2B836A4438B1B7BD8420FCC6A3@uk.tiscali.intl> <20090531201445.GA82420@logik.internal.network>
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>> Would create a striped data set across da1 and da2 > > What kind of performance gain can I expect from this? I'm purely thinking > about performance now - the integrity checking stuff of ZFS is a pleasant > extra. with stripping - as much as with gstripe, ZFS do roughly the same. with RAID-z - faster transfer, rougly same IOps as single disk. After i read ZFS papers i know that RAID-z is actually more like RAID-3 not RAID-5.
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