Summary
When moving from physical to virtual environments we recieve alot of questions in regards to the fragmentation.
Eg: Servers now reside on EMC infastructure.
More Information
Because we have moved from physical disks to virtual disks the belief is that fragmentation is no longer occuring. However this isn't the case.
When a virtual platform is created we now have 2 types of issues. The overheads required for the new virtual server to read the virtual disk and the physical disc to read the allocated chunk of virtual disk.
This obviously impacts alot higher when we run multiple systems on the 1 physical disc/array. This is known as fragmentation ontop of fragmentation.
Solution
Diskeepers virtual platform known as V-locity should be installed on all Windows based virtual servers. This eliminates the CPU read overheads created on the virtual platform which now allows the virtual server/san storage more IOPS. More IOPS = more performance.
If running VMWare, V-locity will also talk to the physical platform in order to not thrash disk activity under heavy load. This is maintained via the Invisitasking principles.