Date: Sat, 19 Sep 2009 13:22:01 -0400 From: "illoai@gmail.com" <illoai@gmail.com> To: krad <kraduk@googlemail.com> Cc: Ruben de Groot <mail25@bzerk.org>, Steve Bertrand <steve@ibctech.ca>, Anselm Strauss <amsibamsi@gmail.com>, freebsd-questions@freebsd.org Subject: Re: ZFS on small systems Message-ID: <d7195cff0909191022u4e71e51fm6d2112c5408a9dfe@mail.gmail.com> In-Reply-To: <d36406630909171320y35f8f875ydbffacf44e1b6d97@mail.gmail.com> References: <7E2DB08A-9E11-47D7-904D-9F3D8490868E@gmail.com> <4AB22B09.4070507@ibctech.ca> <29722c130909170735w24886ac9j8c5faaed15d17bb9@mail.gmail.com> <20090917174614.GB34712@ei.bzerk.org> <d36406630909171320y35f8f875ydbffacf44e1b6d97@mail.gmail.com>
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2009/9/17 krad <kraduk@googlemail.com>: > 2009/9/17 Ruben de Groot <mail25@bzerk.org> > >> On Thu, Sep 17, 2009 at 04:35:37PM +0200, Anselm Strauss typed: >> > Thanks for your advice, Steve. >> > >> > I looked a bit at the source code and in >> > /usr/src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c and I >> > found this: >> > >> > /* set min cache to 1/32 of all memory, or 16MB, whichever is more */ >> > arc_c_min = MAX(arc_c / 4, 64<<18); >> > >> > Could this mean that 16 MB are already enough to run ZFS? >> >> I seriously doubt it. >> > > Sun dont recommend it on a system with < 1 gb of ram, 2 or more is preferred > though. I believe you can install OpenSolaris (& OS by default only installs into zfs) with as little as 768M, but it will (in my exp) run terribly. Even with 4G on a dual-core 64bit lap-top it's pretty sluggish: like FreeBSD 7 on a 300mHz p2 sluggish. -- --
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