Business Copy XP user guide for the XP10000/XP12000 47
CAUTION: Because the S-VOL’s access attribute is changed after copying the P-VOL’s access attribute, be
careful about access attributes of volumes to be specified as BC pairs. For example, if the P-VOL’s access
attribute is S-VOL Disable, the S-VOL’s access attribute is also S-VOL Disable after copying the access
attribute. You cannot perform Pairresync operations on the S-VOL that has the S-VOL Disable access
attribute. You must change the access attribute to something other than S-VOL Disable. For more
information about changing the access attribute, see the HP StorageWorks LUN Security XP Extension user
guide.
You can set VMA, which is required to copy the access attribute, only when the volume’s emulation type is
OPEN-V. Table 20 shows whether you can create pairs according to the VMA setting.
Whether you can use LUN Security XP Extension to change or reference the access attribute for BC pair
volumes depends on the pair status. Table 20 shows the availability of LUN Security XP Extension
operations according to the pair status.
License capacity of LUN Security XP Extension
To create BC pairs using volumes with VMA, you need the license capacity of LUN Security XP Extension
for both P-VOLs and S-VOLs. This is because the S-VOLs have the same access as the P-VOLs when the
access attribute copy is complete. For more information about copying access attributes, see Figure 24.
Table 20
Pair status and availability of LUN Security XP Extension operations
Volume Pair status LUN Security XP Extension
Changing access attribute Referencing access attribute
P-VOL SMPL OK OK
COPY (PD) OK OK
PAIR OK OK
COPY (SP) OK OK
PSUS (SP) OK OK
PSUS OK OK
COPY (RS) OK OK
COPY (RS-R) No OK
1
1. If the VMA copy is not completed, referred information might not be the same as the P-VOL’s information.
PSUE OK OK
S-VOL SMPL OK OK
2
2. When the S-VOL’s mode is “noread”, you can refer to the access attribute only when the pair status is COPY(SP), PSUS, or
PSUS(SP). For more information about the “noread” mode, see the HP StorageWorks RAID Manager XP user guide.
COPY (PD) No OK
1, 2
PAIR No OK
1, 2
COPY (SP) No OK
1
PSUS (SP) OK OK
PSUS OK OK
COPY (RS) No OK
1, 2
COPY (RS-R) No OK
1, 2
PSUE No OK
1, 2
Reserve volume - OK OK