I just posted about finding bottle necks and have narrowed it down to having way too many VMs on my machine on one 15K SAS drive. I have plenty of cores and plenty of ram.
So I am planning on putting 6 VMs on one drive (so 5 drives for 30 VMs). I am thinking of using a 60GB Vertex 2 SSD. Each of my VMs will only need about 6GB of HDD space so this isn't a big deal.
My questions are:
- does ESXI support Trim and do I really need it if I leave 25% of the drive as free space? If I need it should I get a diff drive that handles garbage collection differently?
- Is there anything I need to consider regarding SSD's in virtualized environments.
Thanks for any and all help!
UPDATE: So the main question if I use a 60GB drive and leave 20GB free how badly will the drive degrade due to a lack of Trim? What about if I get a drive such as the Kingston SSDNow V+100 with hardware os-independent garbage collection??