From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tom Pfeifer Subject: Re: dm-raid45? Date: Tue, 03 Dec 2013 09:42:07 -0500 Message-ID: <529DEDBF.4020905@gmail.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7BIT Return-path: In-reply-to: Sender: linux-raid-owner@vger.kernel.org To: Dmitrijs Ledkovs Cc: "David F." , "linux-raid@vger.kernel.org" List-Id: linux-raid.ids On 11/26/2013 06:32 PM, Dmitrijs Ledkovs wrote: > On 26 November 2013 18:07, David F. wrote: >> As a workaround to the mdadm issue with the spare drive we were going >> to have them activate DMRAID but that ends up with the information >> below. Specifically something about dm-raid45 but we had to drop that >> because it no longer compiles in the latest kernels and we couldn't >> find an update that would. Any ideas? (still working on getting the >> dump - the fact that tmpfs doesn't support sparse files makes having >> the customer create the dump via a script we provide a bit more >> involved): >> > > Ubuntu kernels still somewhat maintain and have dm-raid-45 module. > > Install linux-image-extra-virtual package which will pull in correct > versioned packaged with extra modules. > > It is planned however to migrate off & drop dm-raid-45 module soon. > > ps. latest version I can find is > 3.8.0-22-generic/kernel/ubuntu/dm-raid4-5/dm-raid45.ko > > Regards, > > Dmitrijs. As a follow up to this general subject, what will replace the dm-raid45 module after it is dropped? I guess another way to ask that question is what functionality does the dm-raid45 module support that is not currently supported by the dm-raid module, which has aliases to dm-raid1, dm-raid4, dm-raid5, dmraid6, and dm-raid10. And is it already possible now (in recent kernels such as 3.11.x and later) to use the dm-raid module in place of dm-raid45?