Netapp deduplication misconfigurations are quite common, and nothing to be ashamed of. Netapps have a lot of features to work with, as does the tech world as a whole. Getting all these parts working together well sometimes is tricky. Implementing a simple dedup schedule in your environment can save you time and most importantly disk. But there are some configurations which are not optimal and need to be planned out carefully. This is a quick high level look at what some of these misconfigurations are.
Never Enabling Deduplication on VMWare Implementations!
Misaligned VMware VW’s
LUN reservations provisioning
600GB LUN on a 1 TB Volume - 600GB LUN is reserved with no data on LUN. Volume shows 600 GB Add 270 GB data onto LUN Volume still shows 600 GB Dedpue 270 GB of data down to 100 GB Volume reports 430GB used since it reclaimed 170 GB from the operation. Remove LUN reservation and data only takes up 100 GB and volume reports 900 GB free