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If there is problem deactivate LV and _init_mirror_log is called with remove_on_failure = 1, remove the newly created log LV from metadata. (This can happen if there is active device with the same name but different UUID.) The main reason for this "workaround" patch is to - do not keep _mlog volume in metadata, so user can repeat the action - print better error message describing the real problem # lvcreate -m 2 -n lv1 -l 1 --nosync vg_bar WARNING: New mirror won't be synchronised. Don't read what you didn't write! /dev/vg_bar/lv1_mlog: not found: device not cleared Aborting. Failed to wipe mirror log. Error locking on node bar-01: Input/output error Unable to deactivate mirror log LV. Manual intervention required. Failed to create mirror log. # lvcreate -m 2 -n lv1 -l 1 --nosync vg_bar WARNING: New mirror won't be synchronised. Don't read what you didn't write! Aborting. Unable to deactivate mirror log. Failed to initialise mirror log.
This tree contains the LVM2 and device-mapper tools and libraries. For more information about LVM2 read the changelog in the WHATS_NEW file. Installation instructions are in INSTALL. There is no warranty - see COPYING and COPYING.LIB. Tarballs are available from: ftp://sources.redhat.com/pub/lvm2/ To access the CVS tree use: cvs -d :pserver:cvs@sources.redhat.com:/cvs/lvm2 login CVS password: cvs cvs -d :pserver:cvs@sources.redhat.com:/cvs/lvm2 co LVM2 Mailing list for general discussion related to LVM2: linux-lvm@redhat.com Subscribe from https://www.redhat.com/mailman/listinfo/linux-lvm Mailing list for LVM2 development, patches and commits: lvm-devel@redhat.com Subscribe from https://www.redhat.com/mailman/listinfo/linux-lvm Mailing list for device-mapper development, including kernel patches and multipath-tools: dm-devel@redhat.com Subscribe from https://www.redhat.com/mailman/listinfo/dm-devel