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Figure 23 BC, Continuous Access XP, and Continuous Access XP Journal: Shared
S-VOL/P-VOL/S-VOL
Combining B
C with LUN Security XP Extension
BC can creat
e pairs using volumes for which LUN Security XP Extension sets the access attribute.
However, yo
u cannot create a BC pair specifying a volume with the S-VOL Disable attribute as an S-VOL.
Table 15 sho
ws whether you can specify the volume with access attribute as a P-VOL or S-VOL of
a BC pair.
Table 15 Access attribute and availability as a BC pair volume
Availability as a BC pair volume
Access attribute
P-VOL S-VOL
Read/Write
OK OK
Read Only
OK
NO
Protect
OK
NO
S-VOL Disable
OK
NO
Table 16 shows whether you can perform BC operations on the volume with the S-VOL Disable attribute.
Table 16 Availability of BC operations on volumes with the S-VOL Disable attribute
Availability of BC operations
BC operations
P-VOL S-VOL
Paircreate
OK
NO
Pairsplit
OK
NO
Paircreate and Pairsplit
1
OK
NO
Forward Pairresync
OK
NO
Backward Pairresync
NO NO
Suspend
OK
NO
Delete
OK OK
1
Paircreate and Pairsplit means you simultaneously create and split BC pairs.
Copying access attributes
If you create a BC pair using volumes that LUN Security XP Extension has set to VMA (Volume
Management Area), you can copy information about the access attribute in the P-VOL's VMA to the S-VOL.
Business Copy XP user guide
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