Hi, I have server with 32 GB physical memory. I want to host in this server a lot of Ubuntu X64 VDS with summary memory more than 160 GB. Is this ratio is real or too much?
It's strongly recommended to do not exceed virtual memory assignment more than existing available memory resources, for any type of guest OS/application even in testing scenarios. However, first of all I suggest to read my post about Relation between physical & virtual Memory.