From mboxrd@z Thu Jan 1 00:00:00 1970 From: brem belguebli Date: Thu, 06 May 2010 03:44:29 +0200 Subject: [BUG-REPORT] mirror legs in the same PV with --alloc anywhere In-Reply-To: <87fx26zba5.fsf@twilight.int.mornfall.net.> References: <4BC7817E.7080407@redhat.com> <20100415220308.GO13021@agk-dp.fab.redhat.com> <4BC88002.10803@redhat.com> <1271495752.5449.53.camel@localhost> <4BCF1761.7080805@redhat.com> <4BD1ECEB.9010504@redhat.com> <1272056987.2983.2.camel@localhost> <4BD1F9C0.8090108@redhat.com> <87fx26zba5.fsf@twilight.int.mornfall.net.> Message-ID: <1273110269.2544.3.camel@localhost> List-Id: To: lvm-devel@redhat.com MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Hi Petr, On Wed, 2010-05-05 at 16:13 +0200, Petr Rockai wrote: > Takahiro Yasui writes: > > On 04/23/10 17:09, brem belguebli wrote: > >> On Fri, 2010-04-23 at 14:54 -0400, Takahiro Yasui wrote: > >>> On 04/23/10 12:01, brem belguebli wrote: > >>>> I've read in the RHEL 5.5 technical datasheet that the shipped LVM > >>>> version 2.02.56 was alraedy capable of mirrored log. > >>> > >>> As far as I see lvm2 code, I don't think lvm2 in RHEL5.5 has > >>> mirrored log feature. I'm not sure which document you referred to. > >>> Could you tell me the exact name of "RHEL 5.5 technical datasheet"? > >> > >> http://www.redhat.com/f/pdf/rhel/RHEL_5_5_TechOverview_wp_web.pdf > >> page 4, LVM > >> > >> " LVM ??? the Logical Volume Management storage suite has been augmented > >> to provide hot sparing > >> for mirror journals, enabling automatic replacement or removal of > >> failed logging devices. > >> " > > > > Thanks for the information, but I am not sure if this sentence is > > telling 'mirrored log.' What I can say is the lvm2-2.02.56-8 doesn't > > have 'mirrored log' feature. I hope someone may give you a explanation... > For all I can tell, this means that if the log fails, it is > automatically replaced when there's a hotspare. Which is true, but it > does not imply mirroring. > I have never seen this documented anywhere, could you provide any link to this hotspare based log replacement? > Yours, > Petr. > Thanks Brem > -- > lvm-devel mailing list > lvm-devel at redhat.com > https://www.redhat.com/mailman/listinfo/lvm-devel