Avamar and DD both use variable block dedupe, just not the same algorithm.  One 
calls it SISL, the other has no fancy name.  But both are very good.

Additionally, there are strong points to each as well in certain use cases.

Avamar is fantastic with high file count backups in the millions of files, high 
latency links over (e.g. fractional 56k with 300ms latency) NDMP backups 
infinite level 1's!!!  Vmware backups due to its proxy load balancing design.  
And desktop/laptop backups

Where it falls on it's face and NW + DD take over is comprehensive tape 
support, database backups of large or high change rate data, specific 
application support like meditech, or just plain data center backups

You can put all three together you know?  Networker at it's core, DD on the 
backend, avamar for remote office backups high file count backups, and all 
managed through and administered through Networkers NMC.

Global dedupe on avamar is possible, though to some degree I think client side 
BOOST with NW+DD may offer this somewhat?  But in a not as efficient method as 
far as I can tell.  It's still not as fast to backup compared to avamar.

+----------------------------------------------------------------------
|This was sent by mnabors AT gmail DOT com via Backup Central.
|Forward SPAM to abuse AT backupcentral DOT com.
+----------------------------------------------------------------------