HP XP Racks - Manual (Page 14)

Table 5 Poor target volume candidates for Cnt Ac-S/Cnt Ac-J pair combinations
Poor Target Volume Candidate Source Volume Continuous Access Synchronous or
Continuous Access Journal Pair
Candidate
None Internal primary volume Internal primary volume, Internal secondary
volume
THP V-VOL Internal secondary volume
Internal volume Internal primary volume Internal primary volume, THP V-VOL
secondary volume
THP V-VOL THP V-VOL secondary volume
None THP V-VOL primary volume THP V-VOL primary volume, Internal
secondary volume
None Internal secondary volume
Internal volume THP V-VOL primary volume THP V-VOL primary volume, THP V-VOL
secondary volume
None THP V-VOL secondary volume
CAUTION:
•
If you do the Continuous Access Synchronous operation so that the Continuous Access
Synchronous pair status becomes other than PSUS when Auto LUN and Continuous Access
Synchronous share a volume, the Auto LUN process stops.
•
If you do the Continuous Access Journal operation so that the Continuous Access Journal pair
status becomes other than PSUS when Auto LUN and Continuous Access Journal share a
volume, the Auto LUN process stops.
Auto LUN and Continuous Access Journal Z
You cannot select a volume in Pending Duplex or Duplex status as a source volume.
If you create a Continuous Access Journal Z pair for a delta resync operation in a 3DC multi-target
configuration, the primary volume or the secondary volume of the delta resync pair can be used
as a source volume. To use the primary or secondary volume as a source volume, you must ensure
that the status of each pair in the 3 DC multi-target configuration is as shown in
Table 6 (page 15)
and Table 7 (page 15) .
Figure 3 3DC multi-target configuration
14 Requirements