From mboxrd@z Thu Jan 1 00:00:00 1970 From: jeffs_linux@123mail.org Subject: Re: Why do I get different results for 'mdadm --detail' & 'mdadm --examine' for the same array? Date: Wed, 15 Jun 2011 19:39:23 -0700 Message-ID: <1308191963.29354.1463681709@webmail.messagingengine.com> References: <1307840471.18429.1462140465@webmail.messagingengine.com><20110616101812.761f7397@notabene.brown><1308184754.28723.1463652469@webmail.messagingengine.com><20110616112243.22a20610@notabene.brown><1308188856.14820.1463669409@webmail.messagingengine.com> <20110616120049.2f01ce88@notabene.brown> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20110616120049.2f01ce88@notabene.brown> Sender: linux-raid-owner@vger.kernel.org To: NeilBrown Cc: linux-raid@vger.kernel.org List-Id: linux-raid.ids On Thu, 16 Jun 2011 12:00 +1000, "NeilBrown" wrote: > On Wed, 15 Jun 2011 18:47:36 -0700 jeffs_linux@123mail.org wrote: > > >> > > cat /dev/.mdadm/map > > > > --------------------------------------------------------------- > > > > md126 0.90 19f2b21c:e54f9e1a:be5ad16e:9754ab5e /dev/md/0_0 > > > > md127 1.2 79fb7ad4:289bfae5:86c535ff:202960f2 /dev/md127 > > > > --------------------------------------------------------------- > > > > > > > > mdadm --detail --scan > > > > ARRAY /dev/md127 metadata=1.2 name=jeffadm:jeffadm1 > > > > UUID=d84afb64:e6fa2b64:ff21c975:f9765431 > > > > ARRAY /dev/md/0_0 metadata=0.90 > > > > UUID=19f2b21c:e54f9e1a:be5ad16e:9754ab5e > > > > > > Yes, that it weird. I don't know how they came to be out of sync. > > > mdadm --incremental --rebuild-map > > > will fix it.. cat /dev/.mdadm/map md126 0.90 19f2b21c:e54f9e1a:be5ad16e:9754ab5e /dev/md/0_0 md127 1.2 79fb7ad4:289bfae5:86c535ff:202960f2 /dev/md127 mdadm --incremental --rebuild-map cat /dev/.mdadm/map md127 1.2 79fb7ad4:289bfae5:86c535ff:202960f2 /dev/md/jeffadm:jeffadm1 md126 0.90 19f2b21c:e54f9e1a:be5ad16e:9754ab5e /dev/md/0_0 Notice that the UUIDs did NOT change, and are thus still out of sync. BUT, the names did ... Jeff