HP XP Business Copy Software - Manual (Page 45)

Business Copy XP user guide for the XP10000/XP12000 45
Figure 23 is an example of a volume functioning as both a Continuous Access XP S-VOL and a Continuous
Access XP Journal P-VOL. In this configuration, you cannot use this volume as the P-VOL of a BC pair.
Figure 23 BC, Continuous Access XP, and Continuous Access XP Journal: Shared S-VOL/P-VOL/S-VOL
Combining BC with LUN Security XP Extension
BC can create pairs using volumes for which LUN Security XP Extension sets the access attribute. However,
you cannot create a BC pair specifying a volume with the S-VOL Disable attribute as an S-VOL.
Table 17 shows whether you can specify the volume with access attribute as a P-VOL or S-VOL of a BC
pair.
Table 18 shows whether you can perform BC operations on the volume with the S-VOL Disable attribute.
Table 17 Access attribute and availability as a BC pair volume
Access attribute Availability as a BC pair volume
P-VOL
S-VOL
Read/Write OK OK
Read Only OK NO
Protect OK NO
S-VOL Disable OK NO
Table 18 Availability of BC operations on volumes with the S-VOL Disable attribute
BC operations Availability of BC operations
P-VOL
S-VOL
Paircreate OK NO
Pairsplit OK NO
Paircreate and Pairsplit 1
1. Paircreate and Pairsplit means you simultaneously create and split BC pairs (see ” Creating and splitting pairs ” on
page 66)
OK NO
Forward Pairresync OK NO
Backward Pairresync NO NO
Suspend OK NO
Delete OK OK