How deduplication works in BE2012
I'm pretty confused over how the deduplication occurs in BE2012.
Q1) How is a backup job setup to use deduplication? Example: I have to backup RHEL6 server daily(differential) & weekly(full) of a single volume of 100GB.
- Q1a) What storage type do we choose for each of above jobs? Is it correct to choose "Dedup-disk" for full & "regular disk" for differential?
- Q1b) When given an option w/ dedup disk to be made available which one should i choose? Any recommendation for windows or Linux host?
Q2) Does the differential backup jobs get any benefit from using dedupe?(I suppose not, but still curious).
Q3) What happens after first full backup? I assume the first backup is used as seed for dedup. When the next full backup job kicks in, does the hash calculation happen on RHEL6 server or BE2012?
- Q3a) Now as per theory of deduplication, the collective size of [(seed + second full backup) < 2x full backup]. Is that always the case?
- Q3b) If I were to restore the
Q3) If I were to manually copy the backups to a parent site, how should I go about it? The two sites are separated geograpically over slow WAN.
Q3a) Someone suggested using CASO option to duplicate the backup set. Does this kind of copy also take advatage of deduplication?
Any help is much appreciated.