From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx3.redhat.com (mx3.redhat.com [172.16.48.32]) by int-mx1.corp.redhat.com (8.12.11.20060308/8.12.11) with ESMTP id k8QDhYkD012332 for ; Tue, 26 Sep 2006 09:43:34 -0400 Received: from wx-out-0506.google.com (wx-out-0506.google.com [66.249.82.237]) by mx3.redhat.com (8.13.1/8.13.1) with ESMTP id k8QDhSEZ017656 for ; Tue, 26 Sep 2006 09:43:28 -0400 Received: by wx-out-0506.google.com with SMTP id i30so4023672wxd for ; Tue, 26 Sep 2006 06:43:28 -0700 (PDT) Message-ID: <625ccb870609260643x43d95c2ahd7d58030bb226307@mail.gmail.com> Date: Tue, 26 Sep 2006 21:43:27 +0800 From: "bowen zheng" In-Reply-To: <625ccb870609260629h3d428bd8hf6c80cca577028ee@mail.gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <625ccb870609260629h3d428bd8hf6c80cca577028ee@mail.gmail.com> Subject: [linux-lvm] Re: Help, lv status inactive Original and inactive Snapshot Reply-To: LVM general discussion and development List-Id: LVM general discussion and development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , List-Id: Content-Type: text/plain; charset="us-ascii"; format="flowed" To: linux-lvm@redhat.com I try to use lvchange -ay to reactive the lv, but it shows error! shell> lvchange -ay /dev/diskvg/lvsnapshot /dev/diskvg/lvsnapshot: read failed after 0 of 4096 at 0: Input/output error Can't change snapshot logical volume "lvsnapshot" shell> lvchange -ay /dev/diskvg/rootlv /dev/diskvg/lvsnapshot: read failed after 0 of 4096 at 0: Input/output error 2006/9/26, bowen zheng : > Everything seems to work fine. But I found this > > > shell> lvscan > /dev/diskvg/lvsnapshot: read failed after 0 of 4096 at 0: Input/output error > .................. > inactive Original '/dev/diskvg/rootlv' [2.92 GB] inherit > inactive Snapshot '/dev/diskvg/lvsnapshot' [100.00 MB] inherit > ........ > > How can I active the rootlv and lvsnapshort. And what does the inactive mean? > > When I mount the lvsnapshort, and backup it. It always shows many IO > errors (both use tar and rsync). How do I backup the lvsnapshort. > > > Thanks.... >