vxvm volume state

CLEAN  - The volume is not started(Kernel state DISABLED) and its plexes
	 are synchronized.

ACTIVE - The volume has been started or was in use when the machine was
	 rebooted. If the volume is DISABLED, the plexes cannot be 
	 guaranteed to be consistant, but wil be consistant when the volume
	 is started.

EMPTY  - The volume contents are not initialized. The kernel state is always
 	 DISABLED when the volume is EMPTY.

SYNC   - The volume is either in read-writeback recovery mode(ENABLED) or was
	 in this mode when the machine was rebooted(DISABLED). With
	 read-writeback recovery, plex consistancy is recovered by reading
	 data blocks of one plex and writing the data to all other writable
	 plexes. If the volume is ENABLED, the plexes are being resyncronized.
	 If volume is DISABLED it was resynching when machine was reboted and 
	 the plexes need to be resynchronized.

NEEDSYNC-The volume will require a resynchronization operation the next time 
	 it is started.
	 
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RAID-5 Volume States

Raid-5 have there own set of volume states:

CLEAN 	- The volume is not started and its parity is good. The raid-5 plex
	  stripes are consistant.

ACTIVE	- The volume has been started or was in use when the machine was
	  rebooted. If the volume is DISABLED, the parity can't be guaranteed
	  to be synchronized.

EMPTY	- The volume contents are not initalized. The kernel state is always
	  DISABLED when the volume is EMPTY.
	  
SYNC	- The volume is either undergoing a parity resynchronization or was
	  having its parity resynchronized when the machine was rebooted.

NEEDSYNC- The volume will require a parity resynchronization operation the 
	  next time it is started.

REPLAY	- The volume is in a transient state as part of a log replay. A log
	  replay occurs when it becomes necessary to use logged parity and 
	  data.