Jonathan Earl Brassow 0c506d9a40 Support the ability to replace specific devices in a RAID array. ... RAID is not like traditional LVM mirroring. LVM mirroring required failed devices to be removed or the logical volume would simply hang. RAID arrays can keep on running with failed devices. In fact, for RAID types other than RAID1, removing a device would mean substituting an error target or converting to a lower level RAID (e.g. RAID6 -> RAID5, or RAID4/5 to RAID0). Therefore, rather than removing a failed device unconditionally and potentially allocating a replacement, RAID allows the user to "replace" a device with a new one. This approach is a 1-step solution vs the current 2-step solution. example> lvconvert --replace <dev_to_remove> vg/lv [possible_replacement_PVs] '--replace' can be specified more than once. example> lvconvert --replace /dev/sdb1 --replace /dev/sdc1 vg/lv		2011-11-30 02:02:10 +00:00
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libdm-iface.c	Support the ability to replace specific devices in a RAID array.	2011-11-30 02:02:10 +00:00
libdm-targets.h	Add internal expected_errno dm_tast var	2011-10-19 16:36:01 +00:00