Hi folks,
I'm running DSS v6 (lite) as a VM on ESXi 4.1.
Setup is as follows:
2x3GHz Xeons
12GB RAM
PERC 5i:
2x500gb SATA for VM Datastore's, RAID0, no read ahead, write back, 64kb block
3x1TB SATA RAID5, no read ahead, write back, 64k block
I've created a VM for DSS with the settings:
1 GB RAM
LSI Parallel:
8gb HD (installed to)
First, I tried formatting the datastore with an 8mb block size, and created a virtual hard drive of 1.8TB.
Results were:
50MB/sec write
3/4MB read
Next, I tried creating a datastore with a 1MB block size, created and added 8 256GB virtual hard drives under a software RAID0 array.
Results:
50MB/sec write
15MB read
Hmmmmmmmmmmmmmmmmmm
Any ideas on whats causing the slow reads?