HP Storage Mirroring Software - Manual (Page 198)

Repository server management Page 197 of 214
Setting deduplication options
File-level deduplication allows you detect and reduce storage of redundant files on the
repository server.
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Deduplicate—Select the checkbox in the Deduplicate column for those volumes
that you want to deduplicate redundant files. The system volume, with the boot
partition, will be unavailable for deduplication.
Note: Some files (for example, .log, .temp, .tmp, and so on) and some files with
particular attributes (like encrypted, reparse, and so on) will not be
deduplicated. You can add additional exceptions in the file
\Atom\Data\SiteConfig.xml in the location where you installed Storage
Mirroring Replicate.
If an NTFS change journal does not exist when deduplication is enabled,
one will be created with the recommended size and growth values. If an