Date: Mon, 1 Jun 2009 07:45:10 +0200 From: Ulrich =?utf-8?B?U3DDtnJsZWlu?= <uqs@spoerlein.net> To: Dan Naumov <dan.naumov@gmail.com> Cc: freebsd-stable@freebsd.org Subject: Re: ZFS on top of GELI / Intel Atom 330 system Message-ID: <20090601054510.GH18676@acme.spoerlein.net> In-Reply-To: <cf9b1ee00905310928q6391408dg48101adac287cc80@mail.gmail.com> References: <cf9b1ee00905290119w5eea0bfmd018d1c1282ac310@mail.gmail.com> <20090531160533.GF18676@acme.spoerlein.net> <cf9b1ee00905310928q6391408dg48101adac287cc80@mail.gmail.com>
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On Sun, 31.05.2009 at 19:28:51 +0300, Dan Naumov wrote: > Hi > > Since you are suggesting 2 x 8GB USB for a root partition, what is > your experience with read/write speed and lifetime expectation of > modern USB sticks under FreeBSD and why 2 of them, GEOM mirror? Well, my current setup is using an old 2GB CF card, so read/write speeds suck (14 and 7 MB/s, respectively, IIRC), but then again, there are not many actual read/writes on / or /usr for my setup anyway. The 2x 8GB USB sticks I would of course use to gmirror the setup, although I have been told that this is rather excessive. Modern flash media should cope with enough write cycles to get you through a decade. With /var being on GELI+ZFS this point is mood even more, IMHO. A recent 8GB Sandisk U3 stick of mine manages to read/write ~25MB/s (working from memory here), so this is pretty much the maximum USB 2.0 is giving you. Cheers, Ulrich Spörlein -- http://www.dubistterrorist.de/
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