Auto lun and continuous access journal z – HP XP P9000 Auto LUN Software User Manual

Page 16

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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 P-VOL

Internal P-VOL, Internal S-VOL

THP V-VOL

Internal S-VOL

Internal volume

Internal P-VOL

Internal P-VOL, THP V-VOL S-VOL

THP V-VOL

THP V-VOL S-VOL

None

THP V-VOL P-VOL

THP V-VOL P-VOL, Internal S-VOL

None

Internal S-VOL

Internal volume

THP V-VOL P-VOL

THP V-VOL P-VOL, THP V-VOL S-VOL

None

THP V-VOL S-VOL

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. Also you
cannot select a volume using two mirrors in the 3 DC multi-target configuration or cascade
configuration with three Continuous Access Journal Z sites, 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 17)

and

Table 7 (page 17)

.

16

Requirements

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