Snapshot Tree - HP Data Protector A.06.11 Integration Manual

a description that contains the product name and a timestamp. Therefore, avoid using
this label for snapshots that you create for other purposes.
Figure 7 Snapshot tree
Existing virtual machine snapshots reduce the overall performance of a virtual machine.
For this reason, Data Protector removes DP snapshots once they are no longer needed.
The number of DP snapshots that remain on the snapshot tree depends on the selected
snapshot handling mode and backup type. The following snapshot handling modes
are available:
• Disabled: This mode supports only full backups. The snapshot that is made at the
beginning of a backup session is used only to create a consistent state. After the
data transfer completes, the snapshot is removed. For details, see
mode: disabled" on page 52.
• Single: This mode supports full, differential, and incremental backups. The following
backup chains are supported:
Full, differential, differential, differential,...
Full, incremental, incremental, incremental,...
It means that you cannot mix incremental and differential backups within the same
backup chain. The snapshot that is made at the beginning of a backup session
is used to create a consistent state. After the backup completes, one DP snapshot
remains on the snapshot tree. It is needed to track changes made since the last
full or incremental backup. For details, see
• Mixed: This mode supports full, differential, and incremental backups. All backup
chains are supported. For example:
Full, incremental, incremental, differential, incremental, differential,...
The snapshot that is made at the beginning of a backup session is used to create
a consistent state. After the backup completes, up to two DP snapshots remain
on the snapshot tree. One is needed to track changes made since the last full
backup and the other to track changes made since the last backup (incremental
or differential). For details, see
Integration guide for VMware Virtual Infrastructure, Sybase, Network Node Manager,
"Snapshot mode:
"Snapshot mode:
and Network Data Management Protocol Server
"Snapshot
single" on page 54.
mixed" on page 58.
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