HP Application Recovery Manager software A.06.10 Concepts guide (March 2008)

As with standard snapshots, when a backup system accesses the snapshot, it reads
disk blocks from both the source volumes and the replica. Consequently both the
application and the backup systems disk resources are used, which can result in the
application performance degradation in cases where the array is excessively loaded.
Snapclone
Snapclone starts as a standard snapshot and ends up as a complete duplicate (or
clone), similar to a split mirror replica.
Figure 7 Creating a snapclone
Application Recovery Manager snapclones are created in combination with a storage
object called a container to speed up snapclone creation process and reduce impact
on source volumes during copy of data. A container is space on a disk array, which
is pre-allocated for later use as a snapclone. It can be either created new or converted
from a storage volume that is no longer needed.
The process of a snapclone creation is as follows:
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