From mboxrd@z Thu Jan 1 00:00:00 1970 From: Fabien Salvi Subject: Re: hot scsi disk resize Date: Wed, 05 Mar 2003 11:18:09 +0100 Sender: linux-scsi-owner@vger.kernel.org Message-ID: <3E65CEE1.9020307@cri74.org> References: <3E64727C.9040204@cri74.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: List-Id: linux-scsi@vger.kernel.org To: alexey@technomagesinc.com Cc: linux-scsi@vger.kernel.org, James Bottomley , Jens Axboe , Dennis Gerasimov alexey@technomagesinc.com a =E9crit: >>>>>>Fabien Salvi (FS) writes: >>>>> >=20 > FS> Well, I also think it's a very important and needed feature for > FS> HA systems. I'm very interested in such things... >=20 > FS> But, I thought resize_reiserfs only resize *unmounted* filesyste= m > FS> : http://www.reiserfs.org/resize_reiserfs.html >=20 > citate from this URL: "The resize_reiserfs program allows to grow a > reiserfs on-line if there is a free space on block device." Yes, you're right ! I haven't seen this... It's a bit strange, it contradicts what is said on the first line :) > FS> Will it work under IO load ? >=20 > I tested it several times under different load (read-only, write-only= , > read-write, single-thread and multi-thread tests). I think reiserfs > team may give comments. > FS> Reiserfs has a way to do it dynamically while using it, with > FS> mount option : http://www.reiserfs.org/mount-options.html >=20 > FS> I've tested this without a lot of success (I encounter a lot of > FS> problems). >=20 > what kind of problem have you seen? what versions of kernel/reiserfs/= tools? Well, I made some tests one year ago, I will try this again, as you say= =20 it seems to work well, it's interested... I will let you know my new results. > FS> I'm afraid that even if scsi subsystem support the resize option= , > FS> FileSystems won't support it correctly... Maybe with LVM ? >=20 > FS> Did someone test it ? >=20 >>>From filesystem point of view, LVM and resizable SCSI HDD are the sam= e > think - just block device which may grow. >=20 > I think this patch is just one more step in the right direction. Yes, surely ! --=20 =46abien SALVI Centre de Ressources Informatiques Archamps, France -- http://www.cri74.org PingOO GNU/linux distribution : http://www.pingoo.or= g - To unsubscribe from this list: send the line "unsubscribe linux-scsi" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html