46 Business Copy XP (BC) for the XP10000/XP12000
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.
NOTE: You can specify a volume with VMA as a reserve volume.
Figure 24 shows the process of copying of access attribute when you create a pair using volumes with
VMA.
NOTE: When you use volumes with VMA to create a BC pair, both the P-VOL and S-VOL must have VMA.
Figure 24 Copying access attribute
In Figure 24, if both the P-VOL and S-VOL have VMA, the P-VOL’s VMA is copied to the S-VOL. In
Figure 24, the S-VOL’s access attribute is Read/Write when the pair status is SMPL. After the P-VOL’s VMA
is copied to the S-VOL, the S-VOL’s access attribute is Read Only, which is same as the P-VOL’s access
attribute. When the pair status is PAIR, copied access attribute information is not effective, so the S-VOL’s
access attribute is still Read/Write. To make the copied access attribute information effective, split the pair
and make the pair status PSUS. When the pair status is PSUS, the S-VOL’s access attribute changes to Read
Only. For more information about pair status and operations related to the access attribute, see Table 20.
Table 19 VMA setting and availability of Paircreate operation
P-VOL S-VOL
Volume without VMA Volume with VMA
Volume without VMA OK NO
Volume with VMA NO OK
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