From mboxrd@z Thu Jan 1 00:00:00 1970 From: Roman Mamedov Subject: Re: Software raid, booting and bios Date: Fri, 20 May 2011 14:56:23 +0600 Message-ID: <20110520145623.749b4781@natsu> References: <9067914580344941270@unknownmsgid> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=PGP-SHA1; boundary="Sig_/cuNGxQpiNyROU4bxpislme2"; protocol="application/pgp-signature" Return-path: In-Reply-To: Sender: linux-raid-owner@vger.kernel.org To: Paul van der Vlis Cc: linux-raid@vger.kernel.org List-Id: linux-raid.ids --Sig_/cuNGxQpiNyROU4bxpislme2 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable On Fri, 20 May 2011 10:33:00 +0200 Paul van der Vlis wrote: > You can select the "boot device priority" where you can choose about > devices types (DVD, harddisk, USB, network) but you can choose only one > SATA disk. Study it, and you will see I am right. I've asked it to my > rackserver-vendor, they say: "that's always the case". How about just not buying crappy hardware from this lying vendor anymore. http://ompldr.org/vOHB6Zw/bios4.jpg <- this is present in majority of motherboard BIOSes since forever. > But I think I have had systems in the past, what could do it. An > interesting question is then: how well is it tested? What when e.g. a > disk boots, and then gives an I/O error? I am looking for a well-tested > way to solve this, and I am willing to pay for it or choose another > hardware vendor for it. Yes, I think it is conceivable that if a disk fails in a 'bad' way, i.e. by locking up on reads, or reading the first sector but not the next ones it c= an prevent the system from booting even with this priority system. I don't know if chances of that are high, considering that quite often disks fail by also ceasing to be detectable in BIOS, in which case your boot-up would proceed normally. --=20 With respect, Roman --Sig_/cuNGxQpiNyROU4bxpislme2 Content-Type: application/pgp-signature; name=signature.asc Content-Disposition: attachment; filename=signature.asc -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iEYEARECAAYFAk3WLLcACgkQTLKSvz+PZwhQpQCffePO21odZcLztzepUYLT89de wFYAoIx1DJn3uvPatWEgSFcGalFk1eX2 =S+zH -----END PGP SIGNATURE----- --Sig_/cuNGxQpiNyROU4bxpislme2--