From mboxrd@z Thu Jan 1 00:00:00 1970 From: Robin Hill Subject: Re: Building RAID5 w/o a Hot Spare Date: Wed, 27 Jan 2010 14:53:13 +0000 Message-ID: <20100127145313.GA31715@cthulhu.home.robinhill.me.uk> References: <1264603577.1928.4.camel@test.apertos.eu> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="k+w/mQv8wyuph6w0" Return-path: Content-Disposition: inline In-Reply-To: <1264603577.1928.4.camel@test.apertos.eu> Sender: linux-raid-owner@vger.kernel.org To: linux-raid List-Id: linux-raid.ids --k+w/mQv8wyuph6w0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed Jan 27, 2010 at 03:46:17PM +0100, Micha=C5=82 Sawicz wrote: > Dnia 2010-01-27, =C5=9Bro o godzinie 09:26 -0500, Carlos Williams pisze: > > I am building a Linux system which has 4 identical 'fd' partitions on > > each of the 4 drives. I don't want to use the 4th partition or disk if > > you would like to call it as a 'hot spare'. I would like to span the > > entire array over the 4 drives. My question is does my command look > > correct for doing so? >=20 > I'm not sure I understand what you want to achieve. A 'spare' disk is > one that isn't used until any of the other fail, then the spare replaces > the failed one. The term 'hot spare' is used to identify a disk that is > a mirror of one of the other drives, but there's no support for that in > Linux Software-RAID. >=20 A hot spare is one that's plugged in, powered up, and available for use (a cold spare is sat on a shelf). At least, that's the only way I've ever heard the terminology used. Cheers, Robin --=20 ___ =20 ( ' } | Robin Hill | / / ) | Little Jim says .... | // !! | "He fallen in de water !!" | --k+w/mQv8wyuph6w0 Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.11 (GNU/Linux) iEYEARECAAYFAktgU1gACgkQShxCyD40xBLgBgCg0/UNTGRridK++gbVcpOqolma RDkAni8DxARcZ8CwJ0PUQOlJCzu3uU2P =RPnP -----END PGP SIGNATURE----- --k+w/mQv8wyuph6w0--