Deduplication on TSM

Deduplication on TSM

Deduplication è two types 1)      Serverside==setopt DEDUPREQUIRESBACKUP no/yes,def primary stgpool with dedup=yes,and update the node... 08:57

Deduplicationè two types

1)     Serverside==setopt DEDUPREQUIRESBACKUP no/yes,def primary stgpool with dedup=yes,and update the node to dedup=clientorserver

2)     2) client side==dsm.opt è deduplication yes,enablededupcache no

New Commands===Show deduppending stgpool-name

 This command shows the amount of data that has been identified as duplicate data, but has not yet been processed by reclamation to delete it.

 Server-side	 Client-side
– Register and Update Node commands include:	– DEDUPLication YES | NO
• DEDUPLICATION=SERVERONLY | CLIENTORSERVER	– Include.dedup and exclude.dedup
– Copygroup destination must be	– ENABLEDEDUPCAche YES | NO
• Stgpool with DEDUPLICATE=YES	– DEDUPCACHEPath directory_name
	– DEDUPCACHESize 256 (1 to 2048 in MB)

	Server-side Deduplication	Client-side Deduplication
Method used	Server removes redundant data chunks	Client queries server to remove redundant data chunks before sending
Conserves Network Bandwidth?	No	Yes
Data supported	Backup, Archive, API, HSM	Backup, Archive, API
Scope	Data in the same storage pool	Data in the same storage pool