Date: Fri, 14 Dec 2007 13:08:20 +0000 From: Doug Rabson <dfr@rabson.org> To: Dag-Erling =?ISO-8859-1?Q?Sm=F8rgrav?= <des@des.no> Cc: David Duchscher <daved@tamu.edu>, freebsd-current@freebsd.org, Benjamin Close <Benjamin.Close@clearchain.com>, Hugo Silva <hugo@barafranca.com> Subject: Re: ZFS melting under postgres... Message-ID: <1197637700.1250.35.camel@herring.rabson.org> In-Reply-To: <86ir31xwlu.fsf@ds4.des.no> References: <47606C09.2070209@isc.org> <47609F0A.7010805@clearchain.com> <47609FE3.8040606@barafranca.com> <4760B444.1080604@clearchain.com> <06CAC7FC-DB58-441D-A6E0-76D1D8133393@tamu.edu> <86ir31xwlu.fsf@ds4.des.no>
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On Fri, 2007-12-14 at 13:57 +0100, Dag-Erling Smørgrav wrote: > David Duchscher <daved@tamu.edu> writes: > > So does anybody know of a battery backed NVRAM card that can be used > > with FreeBSD that the ZIL could be offloaded to? > > Any CF card or similar will do. You don't need battery backup for > flash memory. THis may also have to wait for a future version of ZFS. I remember reading about this kind of thing as an upcoming feature in Solaris. I believe the way this feature would work is that ZFS would allow creating the ZIL on a different pool to the filesystem - i.e. create a zpool on the CF card and get the ZIL to live there.
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