Excluding files from data deduplication
You can exclude a file from data deduplication during backup or archive processing.
About this task
You can exclude only files for archive data deduplication. You can exclude files and images (where applicable) for backup data deduplication.
You can exclude only files for archive data deduplication. You can exclude files, images, system state objects, and ASR for backup data deduplication.
Procedure
If you do not want certain files to be processed by client-side data deduplication, you can exclude files from data deduplication processing using the GUI:
What to do next
You can also exclude files from data deduplication
processing by editing the dsm.sys file:
- Add the deduplication yes option.
- Exclude the files in a directory from data deduplication. For example, to exclude the files in the /Users/Administrator/Documents/Taxes/ directory, add the following statement: EXCLUDE.dedup /Users/Administrator/Documents/Taxes/.../*
- Exclude client-side data deduplication for image backup of a file system. For example, to exclude the /home file system, add the following statement: EXCLUDE.DEDUP /home/*/* IEOBJTYPE=Image.
You can also exclude files from data deduplication processing by editing the
dsm.opt file:
- Add the deduplication yes option
- Exclude client-side data deduplication for image backup of drive. For example, to exclude drive E:, add the following statement: EXCLUDE.DEDUP E:\*\* IEOBJTYPE=Image to dsm.opt.
Important: If an object is sent to a data deduplication pool, data deduplication occurs
on the server, even if the object is excluded from client-side data deduplication.