From mboxrd@z Thu Jan 1 00:00:00 1970 From: Robin Hill Subject: Re: What's the typical RAID10 setup? Date: Wed, 2 Feb 2011 09:25:08 +0000 Message-ID: <20110202092508.GA18517@cthulhu.home.robinhill.me.uk> References: <20110131203725.GB2283@www2.open-std.org> <20110131225235.GA11775@www2.open-std.org> <4D4883A3.6030605@hardwarefreak.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="tKW2IUtsqtDRztdT" Return-path: Content-Disposition: inline In-Reply-To: Sender: linux-raid-owner@vger.kernel.org To: Jon Nelson , linux-raid@vger.kernel.org List-Id: linux-raid.ids --tKW2IUtsqtDRztdT Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue Feb 01, 2011 at 09:12:11PM -0200, Roberto Spadim wrote: > but the best algorithm is time based (minimize time to access data) >=20 And what do you think takes the time accessing the data? In a rotating disk, it's moving the heads - that's why the current strategy is nearest head. In an SSD there's no head movement, so access time should be the same for accessing any data, making it pretty much irrelevant which strategy is used. Cheers, Robin --tKW2IUtsqtDRztdT Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.16 (GNU/Linux) iEYEARECAAYFAk1JIvQACgkQShxCyD40xBLxFgCgsW3/NXDbbr9gmoCNxhGzV/4w IuQAoICJdWTzwjRtUcakvyrV3hCcImFI =MLBw -----END PGP SIGNATURE----- --tKW2IUtsqtDRztdT--