SnapManager stores Exchange backup data in backup sets. See the following topics for more information:
A SnapManager backup set, sometimes called just the "backup set", consists of all data that you would need to be able to perform a restore, regardless of whether this data exists on the same LUNs or volumes. A backup set contains the following items from the same backup set:
The SnapInfo directory stores information about each storage group set created by SnapManager Backup, copies of transaction log files, and other data critical to the backup set. The location of this directory is specified when you run the Configuration Wizard. By default, the directory name is SME_SnapInfo. However, you can specify a different directory name.
By default, the SnapInfo directory is on the LUN that stores the Exchange transaction log files, but this is not a requirement. The SnapInfo directory cannot reside on the same LUN that stores the Exchange database files.
Every time a SnapManager backup set is created, SnapManager creates a new backup set subdirectory under the SnapInfo directory. SnapManager populates this subdirectory with the transaction logs backed up as part of that backup set, as well as the recovery information for that specific Snapshot copy. A complete backup set consists of this SnapInfo subdirectory and the corresponding Snapshot copies of the LUNs that store the Exchange databases and transaction logs.
The SnapInfo directory name is EXCH__ followed by the Exchange server host name:
For example, the subdirectory for databases belonging to the Exchange server on the Windows host system CLPUBS-WINSRVR3 would be named as follows:
SnapManager backup set names are displayed in the SnapManager Restore tab and in the SnapManager Restore Wizard. These names include the following information about the backed-up databases:
The Snapshot copies created by SnapManager backup operations are automatically named by Data ONTAP. The name of each Snapshot copy created during a SnapManager backup operation includes information that identifies the Snapshot copy contents.
Database Snapshot copy names and SnapInfo directory Snapshot copy names include the name of the Exchange server for which the backup was taken (indicated in this document by the variable ExchServerName).
Database Snapshot copy names and SnapInfo directory Snapshot copy names include the backup management group to which you assigned the full database backup. SnapManager provides backup management groups for designating various levels of backup retention: Standard, Daily, and Weekly.
For more information about using backup management groups, see Using backup management groups in backup and verification.
Older versions of SnapManager for Exchange (before 3.0) always appended the string recent to the name of the most recently created Snapshot copy. This was to allow external scripts, for example archive scripts, to be able to identify and operate on the most recent Snapshot copy.
With the addition of the Run Command After Operation feature in SnapManager 3.0 for Microsoft Exchange, appending recent is no longer necessary because the scripts can be integrated into the backup process. For more information about the Run Command After Operation feature, see Using Run Command After Operation to archive automatically.
Starting with SnapManager 3.0 for Microsoft Exchange, SnapManager offers two conventions for naming backup Snapshot copies:
The backup naming convention is selected in the Backup Setting dialog box. For information about using this dialog box, see Managing the backup setting.
Note
You are advised to select the unique naming convention option unless you have legacy scripts that require the presence of a backup with "recent" in its name. You need select the unique naming convention explicitly (using the Options > Backup Setting menu or the Backup Naming Convention screen of the Backup Wizard) because, for backward compatibility purposes, the generic naming convention is selected by default.
For Exchange database backups, Snapshot copy names begin with the string exchsnap__.
For SnapInfo directory backups, Snapshot copy names begin with the string eloginfo__.
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Last updated: 28-Mar-2006 11:30:59