I currently have two ESX 3.5 hosts connected to a 2050 running 7.3.1.1 through iscsi. I recently had to create a brand new lun and migrate all of my VM's to it becasue the vmfs file system became corrupted. On my old lun dedup was saving me 65% of my space but on the new one I am only saving 5%. It is a 1 TB volume with space settings set to volume, fractional space reservation set to 0% and snapshot reserve set to 0%. On the Lun space reservation is turned off. I have set dedup to run between 3 and 6 am everyday and it now seems to take 6 min to run every night. I can't figure out why this would have changed. Any help would be apreciated.
