HP StorageWorks XP Continuous Access User Guide: HP XP12000 Disk Array, HP XP10000 Disk Array, HP 200 Storage Virtualization System (T1711-96025, May 2011)

As you can see in Figure 18 (page 46), if both the P-VOL and S-VOL have VMA, the P-VOL's VMA
is copied to the S-VOL. In Figure 18 (page 46), 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
becomes Read Only, which is the same as the P-VOL's access attribute of the P-VOL. Note that
when the pair status is PAIR, copied information about the access attribute is not effective, so the
S-VOL's access attribute is still Read/Write. To make the copied information about the access
attribute effective, suspend or delete the pair with the Pairsplit-r or Pairsplit-S operation and make
the pair status PSUS or SMPL. However, even if the pair is suspended, the S-VOL Disable setting
is not effective. To make the S-VOL Disable setting effective, delete the pair. For more information
about pair status and operations related to the access attribute, see Table 17 (page 47).
NOTE: If the pair is suspended or deleted during the COPY status, the P-VOL's access attribute
is not copied to the S-VOL. To copy the P-VOL's access attribute to the S-VOL, ensure that the pair
status is PAIR, and suspend or delete the pair.
NOTE: When the P-VOL is in the COPY or PAIR status, there are two access attributes that can
and cannot be changed according to the existing access attribute. For more information about the
variable access attribute, see Table 18 (page 47).
Table 17 Pair status and availability for LUN Security XP Extension operations
LUN Security XP Extension operationsPair statusVolume
OKOK
OK
1
COPYP-VOL
OK
1
PAIR
OKOKPSUS
OKOKPSUE
OKOKSMPLS-VOL
OKNoCOPY
OKNoPAIR
OKNo
2
PSUS
OKNoPSUE
1 See Table 18 (page 47).
2 If the Write option is set to the S-VOL, the access attribute can be changed.
Table 18 Variable access attribute (pair status of XP Continuous Access P-VOL is PAIR or COPY)
Variable access attributeAccess attribute before
change
S-VOL DisableProtectRead OnlyRead/Write
OKNoNo—Read/Write
OKOK—OKRead Only
OK—OKOKProtect
—NoNoOKS-VOL Disable
License capacity for LUN Security XP Extension
To create an XP Continuous Access pair using volumes with VMA, if the P-VOL has an access
attribute that requires the license for LUN Security XP Extension, you must have LUN Security XP
Extension's license capacity for S-VOLs in the disk array on the secondary site. This is because
Combining XP Continuous Access with other data management operations 47