Date: Fri, 11 Oct 2013 11:58:35 -0400 From: Zaphod Beeblebrox <zbeeble@gmail.com> To: Tom Evans <tevans.uk@googlemail.com> Cc: john@potato.growveg.org, FreeBSD FS <freebsd-fs@freebsd.org> Subject: Re: RAM and zfs and multiple disks Message-ID: <CACpH0MeMzFwHbzvLYh-wd%2BQ3%2BCmO-qpVhqgPANjkcCqX0Rwh-A@mail.gmail.com> In-Reply-To: <CAFHbX1%2BVhK08wzLJfgH2exPgCbFvrWeo5dCksfyHQ691br%2BMEA@mail.gmail.com> References: <20131010170724.GA19751@potato.growveg.org> <CAFHbX1%2BVhK08wzLJfgH2exPgCbFvrWeo5dCksfyHQ691br%2BMEA@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
At home I have a large ZFS server serving up 18x 2T disks (raidZ1 x2). The server machine is core2-duo with 8G RAM and an 'em' GigE added (because the motherboard GigE was crap). I use SATA port expanders to multiply the 6 motherboard ports. The machine has a UFS boot and there is a bit of a "fight" when something uses memory and/or UFS to do something. I would have had ZFS on my desktop, but instead I use a diskless NFS setup from the ZFS server. Originally, when I setup these systems, the NFS diskless desktop was avoiding the conflict between the nvidia driver being 32 bit only and ZFS liking more memory. This is long moot, but the setup remains. The only remaining task here is to use NFSv4 diskless. I'm not sure how easy/hard that is. The root mount seems to be NFSv3. As for ZFS on desktops, all the PC-BSD setups I've done for the family are ZFS. They typically have either 2 or 4 gig of RAM. I haven't really tried a low memory ZFS (say 512 meg). They seem to run acceptably well, but they aren't really challenging anything --- running a FreeBSD/gnome or FreeBSD/KDE desktop on a machine with 2 or 4 gig of RAM is really not a challenge.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?CACpH0MeMzFwHbzvLYh-wd%2BQ3%2BCmO-qpVhqgPANjkcCqX0Rwh-A>