From mboxrd@z Thu Jan 1 00:00:00 1970 From: Oleg Drokin Subject: Re: How to use external journal? Date: Mon, 23 Dec 2002 19:19:16 +0300 Message-ID: <20021223191916.B1645@namesys.com> References: <20021223155704.GC18464@dei.inf.uc3m.es> Mime-Version: 1.0 Return-path: list-help: list-unsubscribe: list-post: Errors-To: flx@namesys.com Content-Disposition: inline In-Reply-To: <20021223155704.GC18464@dei.inf.uc3m.es> List-Id: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Luis Gregorio Muniz Rodriguez Cc: reiserfs-list@namesys.com Hello! On Mon, Dec 23, 2002 at 04:57:04PM +0100, Luis Gregorio Muniz Rodriguez wrote: > I have recently discovered that the journal can be placed on an external > device (i.e, `mkreiserfs --journal-device '), but I haven't found > any doc about it. If you do not use 2.5 kernels, you need to apply separate patch to your tree. > I'm currently using ReiserFS on top of LVM partitions, and I am > wondering if I can use the same shared journal device for a number of > small partitions. No, you cannot. > Note that I'm not trying to move all the journals to the same device > (this should be easy using `--journal-device' and `--journal-offset', > isn't it?). Rather, I try to share the same 32Mb journal between small > filesystems and/or filesystems with infrequent writes (such as , > , , and so on). > Is that possible? And convenient? This is not possible. But you can divide these "shared" 32M into four separate parts and use these with --journal-offset. Bye, Oleg