DeDup in Celerra

Consideration:

Running production/high intensive file system should have atleast couple of free space to enable DeDup – but fact is to enable DeDup only few MB is minimum requirement but it may encounter problem.

a. Why encounter problem? – If there is 10GB file it will decompress and put decompressed file in the same location and eliminate the duplicate data; so we should have space to put this decompressed data

b. So to keep free space we need to consolidate the file system by reducing utilization or increase couple of gig if we are not sure each file size.

(2) To enable DeDup – Performance

a. It will run in background and not that performance sensitive compared to replication because it going to run for few days or for a while.