From mboxrd@z Thu Jan 1 00:00:00 1970 From: Luca Berra Subject: Re: ANNOUNCE: mdadm 3.1.2 - A tool for managing Soft RAID under Linux Date: Thu, 11 Mar 2010 13:29:47 +0100 Message-ID: <20100311122947.GA20914@maude.comedia.it> References: <19351.10758.612499.310262@notabene.brown> <4B98D322.7010101@shiftmail.org> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1; format=flowed Return-path: Content-Disposition: inline In-Reply-To: <4B98D322.7010101@shiftmail.org> Sender: linux-raid-owner@vger.kernel.org To: linux-raid@vger.kernel.org List-Id: linux-raid.ids On Thu, Mar 11, 2010 at 12:25:22PM +0100, Asdo wrote: > Neil Brown wrote: >> I am pleased to announce the availability of >> mdadm version 3.1.2 >> >> [CUT] >> >> Significant changes are: >> - The default metadata has change again (sorry about that). >> It is now v1.2 and will hopefully stay that way. [CUT] >> > I remember some discussion about alignment for 1.1 and 1.2: is it possible > on 1.2 to guarantee alignment of RAID device on the physical devices? > 4K alignment would be needed on SSDs and 2TB disks w/ 4k physical 512b > logical emulation. Actually on SSDs the alignment could be even more than > 4k, I am not sure. is there any problems with this commit? http://neil.brown.name/git?p=mdadm;a=commit;h=a380e2751efea7dfe8acf0b95419c65ccacfa7cf > Should we bypass the defaults and put 1.0 metadata on those? > What was the downside of 1.0 so that it was not made default? this has been discussed to boredom L. -- Luca Berra -- bluca@comedia.it Communication Media & Services S.r.l. /"\ \ / ASCII RIBBON CAMPAIGN X AGAINST HTML MAIL / \