HP XP Business Copy Software User Manual
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by setting its reserve attribute, only the capacity of the volume itself is added to the total volume
capacity and there is no need for it to be doubled.
CAUTION:
If you specify an XP Thin Provisioning volume as a P-VOL or an S-VOL, the capacity
of the pool used by the XP Thin Provisioning volume will require the XP Business Copy license
capacity. Information about the license capacity of XP Thin Provisioning volumes is not updated in
real time. Therefore, certain write requests may cause the data excess. Prepare the license capacity
corresponding to the pool capacity when you are going to use the XP Thin Provisioning volumes.
If the amount of data exceeds the license capacity, you can use the volumes for additional 30
days. Once 30 days have passed, you cannot perform XP Business Copy operations except deleting
pairs.
The following case examples should help you calculate the total capacity of XP Business Copy
volumes that will be used. The capacity of each volume is assumed to be 1. The colored volume
or volumes represent the volumes that are used.
illustrates one reserved volume and one unreserved volume. In this case, the
total capacity of XP Business Copy volume in use will be 1.
Figure 21 Total Capacity of XP Business Copy Volumes (Example 1)
illustrates one XP Business Copy pair. In this case, the total capacity of XP
Business Copy volumes in use will be 2.
Figure 22 Total Capacity of XP Business Copy Volumes (Example 2)
illustrates XP Business Copy pairs (L1 pairs and L2 pairs). In this case, the
total capacity of XP Business Copy volumes in use will be 5.
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Preparing for XP Business Copy Operations