Date: Mon, 26 Sep 2005 14:26:05 -0700 From: Brooks Davis <brooks@one-eyed-alien.net> To: "Frank J. Beckmann" <frank@barda.agala.net> Cc: freebsd-geom@freebsd.org Subject: Re: What is gzero? Message-ID: <20050926212605.GB20833@odin.ac.hmc.edu> In-Reply-To: <200509262304.40932.frank@barda.agala.net> References: <200509262227.46975.frank@barda.agala.net> <20050926205320.GA20833@odin.ac.hmc.edu> <200509262304.40932.frank@barda.agala.net>
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[-- Attachment #1 --] On Mon, Sep 26, 2005 at 11:04:36PM +0200, Frank J. Beckmann wrote: > Hi, > > am Montag, 26. September 2005 22:53 schrieb Brooks Davis: > > On Mon, Sep 26, 2005 at 10:27:44PM +0200, Frank J. Beckmann wrote: > > > Hi, > > > > > > maybe this is a kind of stupid question, but what is the device gzero > > > for? When should I use it instead of /dev/zero? > > > > It's to allow you to emulate a really big (41PB) fake disk for testing. > > Wow, that answer was fast... > > Sounds like an interesting device, but how do I use it? I guess I have to > learn much about geom yet. Just load or compile in the module. A device will appear. Note that such a device is only useful for testing since reads all return zeros and writes are no-ops. -- Brooks -- Any statement of the form "X is the one, true Y" is FALSE. PGP fingerprint 655D 519C 26A7 82E7 2529 9BF0 5D8E 8BE9 F238 1AD4 [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (GNU/Linux) iD8DBQFDOGdtXY6L6fI4GtQRAhk4AJ44VzKJ7ask0IggfhSpGN4v4K0ofwCdGpN+ M7HQKX4xBbf15Xc6tRvJY90= =yIlj -----END PGP SIGNATURE-----
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