From mboxrd@z Thu Jan 1 00:00:00 1970 From: NeilBrown Subject: Re: Extending an existing RAID (10) array Date: Thu, 4 Jul 2013 09:24:02 +1000 Message-ID: <20130704092402.6f3800ec@notabene.brown> References: <987a86de2c602b7d79c3b926fdfced80@kruemel.org> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=PGP-SHA1; boundary="Sig_/UxgrlMZFNhOJvoBxN/.N+p7"; protocol="application/pgp-signature" Return-path: In-Reply-To: <987a86de2c602b7d79c3b926fdfced80@kruemel.org> Sender: linux-raid-owner@vger.kernel.org To: cvb@kruemel.org Cc: linux-raid@vger.kernel.org List-Id: linux-raid.ids --Sig_/UxgrlMZFNhOJvoBxN/.N+p7 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable On Wed, 03 Jul 2013 21:04:00 +0200 cvb@kruemel.org wrote: > Hi, I have a short and hopefully simple question: On >=20 > https://raid.wiki.kernel.org/index.php/Growing >=20 > there is a section on expanding existing partitions. Does the procedure=20 > described there also apply to RAID 10 arrays? >=20 > I'm asking, because the section above says explicitly that it only=20 > applies to RAID level 1/4/5/6 arrays. The section on extending=20 > partitions is silent on that point... >=20 > I have a RAID 10 (software) array here, consisting of 4 disks. As one=20 > of the disks is a bit flaky, I'm thinking of replacing the (all) disks,=20 > maybe with bigger ones - if that should work. >=20 There are two dimensions for growing an array - it is good to be explicit. I think you are just talking about making the devices bigger without increasing the number of devices. This possible for RAID10 as long as it uses a 'near' or 'offset' layout. It is not support for 'far' layout RAID10. NeilBrown --Sig_/UxgrlMZFNhOJvoBxN/.N+p7 Content-Type: application/pgp-signature; name=signature.asc Content-Disposition: attachment; filename=signature.asc -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.19 (GNU/Linux) iQIVAwUBUdSykjnsnt1WYoG5AQKM8g/+NF/BTRMXqm80Fuh/9L2VMtIEc9Azy3DR MH2gl5na1AXTjrEJbr5nqfyxLWpdmyXtDVww8q9h+60+jYex3oiQ8uiPM6HXSOHe 9UOPEDGFSBOyZ7VNq9E9QdAROkpfaXgphXP87bVPfsK748d1wRvchb8d16k0cd7/ tLhou/f9zuedFm4zEFa1kWNLw3iv+7EbrWcc1Q8Qbk8mX4iiGAgFL/Rlz04USO8E m9ASuAQGdq26MsSduMt3WWrG4QCMpua/bUk+XnckU8lGF4b+PX/9r2yTUDGKGEnn AaprjXWRZEjjzq6wJh9OLoV9fZRQz5UzJTBMNSFVv/VhgOUdfSm8JzNH+EhE5jho MzIo0JJ1RuejcELVyLMc9qCpIayt9xQJoZ8CsgZzvWbGa2saEAof7PIO7e1ZOIdY evNIMvtFa99YdUS/gZGtqc+abzfys3X566YqEmgeYuE5dF5gkj7HOt/knYFupFq9 9hZ/CR4xZAHcVfzXzVXBuPMWNhkpEI1apdeEbc1huV4zeoVtY4J6byyDtqWn1D9+ dtmKJYs5wXi8TFEbuJjJNMDyBp841os87FwB2OJPZS5ab4Bkdh1FTR8EsdngOa/5 VtFdoQjPNQ6/6Ri9z4A4u6bXBEVmG8Dy8zppBVP5Ktsziy5wkoXo9a35xZwAD87n e6xNpGAjIIg= =6ykY -----END PGP SIGNATURE----- --Sig_/UxgrlMZFNhOJvoBxN/.N+p7--