Date: Sat, 24 Jul 2004 10:45:50 +0200 (CEST) From: Wojciech Puchar <wojtek@tensor.3miasto.net> To: Chris Keladis <ckeladis@gmail.com> Cc: freebsd-questions@freebsd.org Subject: Re: Vinum. Message-ID: <20040724104435.P75024@chylonia.3miasto.net> In-Reply-To: <268f570d04072400031d0ae080@mail.gmail.com> References: <268f570d04072400031d0ae080@mail.gmail.com>
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> drive e device /dev/da5s1e > drive f device /dev/da6s1e > volume raid10 > plex org striped 512k > sd length 0 drive a > sd length 0 drive b > sd length 0 drive c > plex org striped 512k > sd length 0 drive d > sd length 0 drive e > sd length 0 drive f > > I havent done any profiling but it "feels" a little slow to me. > Thought i'd talk to others to see what their using and see if i should > restructure my volume. > with linear read it will get speed of one drive, linear write - a bit slower (2 writes must be done but in parallel). BUT: with 100 processes reading different things from it it could be up to 6 times faster (actually bit less as it will never get spread evenly) than single drive. writes near 3 times faster.
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