Adaptec Storage Manager Manuel d'utilisateur télécharger pdf (Page 97)

Chapter 10: Protecting Your Data ● 96

Creating a Snapshot

Note: Snapshot is an upgrade feature; if the Snapshot feature is locked,

see Adding Enhanced Features on page 21 for information on

purchasing a feature key.

A snapshot is a frozen image of a logical drive at a particular point in

time. You can copy the data on one logical device to another logical

device by creating a snapshot. You may want to do this if you want to

back up your data to tape, clone a drive, or copy the data to multiple

servers.

There are two snapshot options:

● Snapshot Backup—Copies all data on a logical drive so that it can be

moved from one server to another. See page 97.

● Snapshot Nobackup—Creates a temporary copy of a logical drive

for tape backup and reference (uses less system resources than

Snapshot Backup).

Snapshot Limitations

● You can create a snapshot of only one controller at a time; you can’t

create a snapshot that includes multiple controllers.

● The source logical drive (the logical drive that you’re copying) and

the target logical drive (the logical drive that you’re copying to) must

be on the same controller.

● The source and target logical drives may have the same or different

RAID levels.

● You can create up to four snapshots on each controller.

● The size of the target logical drive must be greater than or equal to

the size of the source logical drive.

● You can’t modify any information on a snapshot.

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Adaptec Storage Manager Manuel d'utilisateur Page 97