Dell PowerVault DL2200 - Manual (Page 11)

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What do the Backup Exec Archive Options NOT Archive?
The File System Archive Option and the Exchange Mailbox Archive Options target specific items of information in
backups of file systems and Exchange Mailboxes, respectively. Administrators should be aware of which files, file
system objects, and other items of information that are not captured by either of the Backup Exec Archiving
Options.
Data Types not archived by a File System Archive job
• Hard links
• Files with alternate streams
• Reparse points
• Sparse files
• Files in Microsoft Distributed File System
• Replication (DFSR) shares, system folders, or recycle bins
• Files that have an encrypted, hidden, or have system attributes
• Files that are in mount point directories. Note: You can share the root of the mount point target, and then
select it for archiving.
Exchange Objects not archived by an Exchange Mailbox Archiving Job
• Mail messages that have pending reminders.
• Any Exchange items other than mail messages, such as address book entries and calendar items.
• Mail messages in Exchange managed folders, journal mailboxes, or in public folders.
The Archiving Option and Backup Exec’s Deduplication Option
Backup Exec’s Archive Options provide deduplication in the Vault through a single instance process, which is based
on entire copies of a file or message. The Backup Exec Deduplication Option provides a different type of
deduplication, based on segments of the file. These two options can work together to provide deduplication across
backup and archiving features in Backup Exec.
A typical configuration involves using the Deduplication Option’s Client or Media Server deduplication capabilities to
store backup copies of data to a Deduplicated Storage Folder. Since Archiving works from a backup of the content
source, it makes sense to optimize space on backup copies as well as data in the Vault. More information about the
Backup Exec 2010 Deduplication Option can be found at http://www.BackupExec.com .
Data stored in the Vault and in the Deduplication Storage Folder use different methods for deduplication. Individual
items that meet archive criteria will be “rehydrated” or reconstituted into their original form before being put into
the Vault. Single instance storage deduplication will be applied to archived data as those emails or files are stored
the Vault.