Using xp business copy software – HP StorageWorks XP Remote Web Console Software User Manual

Page 20

Figure 9 Using XP Thin Provisioning and XP Continuous Access Journal

Table 7 Supported XP Continuous Access Journal and XP Thin Provisioning Combinations

Explanation

XP Continuous Access Journal S-VOL

XP Continuous Access Journal P-VOL

Supported
At initial PAIR create time, pages in the
S-VOL are freed if not needed for
replicating the P-VOL.

XP Thin Provisioning V-VOLs

Supported

Normal volumes

XP Thin Provisioning V-VOLs

Supported
This combination consumes the same
amount of pool capacity as the original
normal volume (P-VOL).

XP Thin Provisioning V-VOLs

Normal volumes

NOTE:

You cannot specify an XP Thin Provisioning pool-VOL as an XP Continuous Access Journal P-VOL or S-VOL.

If the cache write pending rate exceeds 55%, the copy process stops temporarily.

Using XP Business Copy Software

You can use XP Thin Provisioning in combination with XP Business Copy Software to replicate
V-VOLs. You can also use XP Business Copy as a tool to move the data of the V-VOL for I/O load
reasons. HP recommends movement between the P-VOL in pool A and the S-VOL in pool B.

Figure 10 (page 20)

illustrates the interaction when the XP Business Copy P-VOL and S-VOL are

also XP Thin Provisioning V-VOLs.

Table 8 (page 20)

lists the specifics.

Figure 10 Using XP Thin Provisioning and XP Business Copy

Table 8 Supported XP Business Copy and XP Thin Provisioning Combinations

Explanation

Business Copy S-VOL

XP Business Copy P-VOL

Supported

XP Thin Provisioning V-VOLs

Supported, but the Quick Restore
function is not available.

Normal volumes

XP Thin Provisioning V-VOLs

NOTE:

This combination consumes

the same amount of pool capacity as
the normal volume (P-VOL).

XP Thin Provisioning V-VOLs

Normal volumes

About XP Thin Provisioning Operations