lvm2 bug fix and enhancement update

Updated lvm2 packages that fix several bugs and add various enhancements are now
available for Red Hat Enterprise Linux 6.

The lvm2 packages provide support for Logical Volume Management (LVM).

These updated lvm2 packages include numerous bug fixes and enhancements. Space
precludes documenting all of these changes in this advisory. Users are directed
to the Red Hat Enterprise Linux 6.3 Technical Notes for information on the most
significant of these changes:

https://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/6.3_Technical_Notes/lvm2.html#RHBA-2012-0962

Users are advised to upgrade to these updated lvm2 packages, which fix these
bugs and add these enhancements.

Before applying this update, make sure all previously-released errata relevant
to your system have been applied.

This update is available via the Red Hat Network. Details on how to use the Red
Hat Network to apply this update are available at
https://access.redhat.com/knowledge/articles/11258

464877 - Avoid scanning devices to find LV/VG in LVM commands
593119 - RFE: LVM RAID - Handle transient failures of RAID1 images
672314 - Check for suitability of LV segment types before changing the cluster attribute of a VG containing cmirrors
683270 - HA LVM service relocation after leg device failure causes resume transient error
731785 - RFE: add option to dmsetup to display device names for "dmsetup deps"
732449 - RFE: LVM RAID - Support RAID1 up-convert
732462 - RFE: LVM RAID - Support RAID1 down-convert
732531 - RFE: LVM RAID - Support RAID1 merge of LVs split from array with change tracking
733522 - --virtualsize device creation shouldn't cause errors when attempted with cluster VGs
736486 - Add support for encoding of udev-blacklisted characters in dm device names
738484 - clvmd hangs/crash if invalid local request sent
739162 - RFE: LVM RAID - Support snapshot of RAID
739190 - lvcreate -s throws dlopen errors
740290 - Restarting clvmd -S is passing every second exclusive lock and option -E is ignored
742607 - Add wipe_table command to dmsetup to release underlying devices held open
743640 - RFE: LVM - Extending mirrors should allow '--nosync' option.
746792 - RFE: disable the --mirrrorlog mirrored option when clvmd is running
747938 - Point out that md-raid is incomaptible with cluster in lvm.conf
748908 - RFE: LVM RAID - Support RAID device replacement
758552 - RFE: LVM RAID - Handle device failures
760946 - lvm2-monitor fails to start with lvm.conf containing 'command_names = 1' or 'prefix='something''
761267 - lvconvert --merge does not check if snapshot is invalid
769293 - Provide a way for read-write LVs to be activated read-only without updating their metadata.
771419 - lvm event log messages
773482 - Support (non-clustered) thinly-provisioned snapshots in LVM
773507 - [RFE] LVM support for thinly provisioned LVs (non-clustered)
785938 - nosync mirror is extended even when it reports "cannot be extended while it is recovering"
789408 - RAID5 device failure causes dmeventd to block
789421 - RAID4 device failure causes mdX_resync to block
790155 - LVM RAID: Unable to activate RAID device with a failed device
790162 - LVM RAID: converting from 'mirror' to 'raid1' does not preserve sync
794904 - Redundant log leg failure fails to repair and causes kernel hang
796348 - non raid1 volumes are not able to be repaired after device failure
796408 - Add detection of PowerPath devices to LVM
796602 - "lvconvert --splitmirrors" can create not valid Logical Volume names
796786 - stripe legs <= number of parity legs causes raid creation to segfault
796906 - raid volumes with multiple device failures need a way to do partial allocation
798267 - [lvmetad] pvcreate creating PV with PSize 16e
799158 - merged snapshot volumes may never disappear
801205 - minor device number change attempt fails
801967 - RAID1 down conversion with a specified device fails
802326 - Detect and use proper path for lvm binary in 69-dm-lvmetad.rules
804095 - Add lvmetad man page
804135 - vgscan does not populate lvmetad with metadata information
805300 - device-mapper: remove ioctl on failed; error when taking snapshot of inactive origin
805420 - Volumes for thin provisioning pools are not monitored on activation
806111 - RAID1 down conversion with 1st leg device specified fails
806465 - RAID1 split mirror fails when any PV but the last one is chosen
806885 - lvextend fails to extend striped thin volume with --use-policies
807069 - raid volumes containing snapshot devices fail to repair after device failure
807441 - vgreduce tries to unlock nonexistant vgs
807628 - lvm2-cluster package update must restart clvmd
807776 - invalid lvconvert --merge output should mention raid1 now
809576 - "WARNING: udev failed to return a device node" during deactivation and removal
816672 - Partial activation (missing segment replacement) is broken
817130 - Add warning when using snapshots of mirrors
820541 - declare conflict with vdsm < 4.9-113.0
821454 - LVM2 issues invalid ioctl sequence that crashes kernel when snapshots of mounted raid volumes are taken

https://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/6.3_Technical_Notes/lvm2.html#RHBA-2012-0962