Copying access attributes – HP StorageWorks XP Remote Web Console Software User Manual

Page 45

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Figure 17 Shared BC S-VOL/XP Continuous Access P-VOL

CAUTION:

This configuration requires that the BC pair be established in duplex mode (PAIR)

and then split (PSUS) before the XP Continuous Access pair is created.

CAUTION:

When you share an XP Continuous Access S-VOL with a BC P-VOL as shown in

Figure 15 (page 44)

or

Figure 16 (page 44)

the write operation to the XP Continuous Access

P-VOL takes time. Especially, when the BC pair is in the PSUS(SP) status, the write operation
to the XP Continuous Access P-VOL may take extra time due to the time needed copying to
the BC pair. In addition, in the case of XP Continuous Access Asynchronous, the XP Continuous
Access pair may be suspended due to a failure caused by a shortage of capacity in its side
file.

Combining XP Continuous Access and LUN Security XP Extension

You can use XP Continuous Access to create a pair using the volumes that you used LUN Security
XP Extension to set the access attribute. However, you cannot create an XP Continuous Access pair
by specifying a volume that has the S-VOL Disable attribute as an S-VOL.

Table 15 (page 45)

shows whether you can specify a volume with access attribute as a P-VOL or

S-VOL of an XP Continuous Access pair.

Table 15 Access attribute and availability as an XP Continuous Access pair volume

Availability as an XP Continuous Access pair volume

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

Copying access attributes

If you use LUN Security XP Extension to create an XP Continuous Access pair using the volumes to
which the VMA is set, you can copy the P-VOL's access attribute recorded in the VMA to the S-VOL.
You can set the VMA required to copy the access attribute only to OPEN-V volumes.

For more information about LUN Security XP Extension, see the HP StorageWorks LUN Security
XP Extension user guide
.

Combining XP Continuous Access with other data management operations

45

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