Lun expansion, Custom volume size, Lun expansion custom volume size – HP StorageWorks XP Remote Web Console Software User Manual
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Table 17 Access Attribute and Availability as a Volume of an XP Continuous Access Pair
Availability as a Volume of an XP Continuous Access Pair
Access Attribute
S-VOL
P-VOL
OK
OK
Read/Write
OK
OK
Read Only
OK
OK
Protect
NO
OK
S-VOL Disable
NO
OK
Read Only and S-VOL Disable
NO
OK
Protect and S-VOL Disable
The availability of Data Retention Utility operations for changing the access attribute depends on
the XP Continuous Access pair status. For details, see
.
Table 18 Pair Status and Availability of Data Retention Utility Operation
Data Retention Utility Operations
Pair Status
Volume
Referencing Access Attribute
Changing Access Attribute
OK
OK
SMPL
P-VOL
OK
OK
COPY
OK
OK
PAIR
OK
OK
PSUS
OK
OK
PSUE
OK
OK
SMPL
S-VOL
OK
No
COPY
OK
No
PAIR
OK
No
1
PSUS
OK
No
PSUE
1
If the Write option is set to the S-VOL, the access attribute can be changed.
LUN Expansion
LUSE volumes can be assigned to XP Continuous Access pairs, provided that the P-VOL and S-VOL
have the same LU type and the same number of LDEVs. If you need to perform LUSE operations
on an existing XP Continuous Access P-VOL or S-VOL, you must release the pair first to return the
volume to SMPL status.
For further information on LUN Expansion (LUSE), see the HP XP24000/XP20000 LUN Expansion
User Guide.
If you allocate the LUSE volume that consists of LDEVs set across more than one CU to the XP
Continuous Access pair, you must select CU Free for an RCU. The LUSE volume that consists of
LDEVs set across more than one CU cannot create a pair with the volume of an XP1024/XP128
disk array because CU Free cannot be added as an RCU with XP1024/XP128 disk arrays.
Custom Volume Size
CVS volumes can be assigned to XP Continuous Access pairs, provided that the S-VOL has the
same capacity as the P-VOL. If you need to perform CVS operations on an existing XP Continuous
Access P-VOL or S-VOL, you must release the pair first to return the volume to SMPL status.
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About XP Continuous Access Operations