Adaptec 5325301507 Administration Guide - Page 131

Coordinating Snapshot and Backup Operations read-only), a snapshot share inherits access privileges from its associated livevolume share. Note The same folders appear on the Web View screen when you connect to the SnapServer using a Web browser; however, the snapshot share folder does not provide access to the snapshot; it will always appear to be empty. You can prevent the snapshot share from displaying on this Web View screen by selecting the Hide Snapshot Share option when creating or editing a share. Accessing Snapshots Within the Snapshot Share A snapshot share contains a series of directories. Each directory inside the snapshot share represents a different snapshot. The directory names reflect the date and time the snapshot was created. For example, assume the snapshot share named Sales_SNAP contains the following four directories: latest 2008-12-25.120000 2009-01-01.000100 2009-01-07.020100 The latest directory always points to the most recent snapshot (in this case, 200901-07.020100, or January 7th, 2009, at 2:01 a.m.). A user may view an individual file as it existed at a previous point in time or even roll back to a previous version of the file by creating a file copy to the current live volume. Note The latest subdirectory is very useful for setting up backup jobs as the name of the directory is always the same and always points to the latest available snapshot. Coordinating Snapshot and Backup Operations Like backups, snapshots can be scheduled to recur at a designated time and interval. In addition to synchronizing the backup and snapshot schedules, you must create a share (and snapshot share) to the appropriate directory so that the backup software can access the snapshot. For most backup purposes, the directory specified should be one that points to the root of the volume so that all of the volume's data is backed up and available from the snapshot share. 1 Create a snapshot for each volume you want to back up. In the Administration Tool, navigate to Storage > Snapshots, and click Create Snapshot. When defining and scheduling the snapshot, consider the following: • Put a check in the Create Recovery File check box to ensure that the ACL, extended attributes, and quota information are captured and appended to the snapshot. This step is needed because many backup packages do not back up native ACLs and quotas. Placing this information in a recovery file allows all Chapter 7 Snapshots 115