HP Application Recovery Manager software A.06.10 Installation and licensing guide (March 2008)

Example 1
and Figure 41 shows a situation where data from one 200 GB logical unit is backed
up three times a day in a ZDB-to-disk session.
Figure 41 ZDB-to-Disk sessions
Three split mirror or snapclone copies (replicas) are rotated and kept for the purpose
of instant recovery. The capacity based licensing is calculated as follows:
One 200 GB logical unit is used for ZDB-to-disk sessions.
Three replicas of the same 200 GB logical unit are kept for the purpose of instant
recovery. Note that it is the capacity of source volumes and not the capacity of replica
that is the subject of the license:
1 x 200 GB = 0.2 TB for the “Instant Recovery for 1 TB” license.
A total of 0.2 TB of capacity licensing is required, which means that one “Instant
Recovery for 1 TB” license is sufficient for this situation.
Example 2
One 200 GB logical unit, one 120 GB logical unit, and one 300 GB logical unit
are used in ZDB sessions:
1 x 200 GB + 1 x 120 GB + 1 x 300 GB = 0.62 TB
Snapclone copies of one 200 GB logical unit, one 120 GB logical unit, and one
300 GB logical unit are kept for the purpose of instant recovery:
1 x 200 GB + 1 x 120 GB + 1 x 300 GB = 0.62 TB for the “Instant Recovery for 1
TB” license.
One “Instant Recovery for 1 TB” license is sufficient.
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