hello,
i have a setup with 3 servers: 2 for hyper-v 2012 R2 cluster and 1 with Windows 2012 R2 serving as a storage server. Each server has a single NIC 10gb NIC. the hyper-v servers have 128 Gb of RAM and single Xeon E5-2650 v2 processor. The storage server has :
- Single Intel Xeon E5-2620 v2
- 48 GB of RAM
- 12 x 4 To SAS2 disks
- no hardware raid
I setup my storage server using storage spaces
- 1 storage pool
- 1 Virtual Disk of 4 To with parity and thin provisionning
I am using file shares as storage for the hyper-v's.
I have deployed 10 VMs (DC, Exchange, sql, remote desktop, 3 linux servers ...)
However i am experiencing really poor disk performance, specially when copying files (i did not go with a proper IO testing tool). If a copy an ISO of 4 GB Inside a VM from one location to another i get an average speed of 20 MB/s.
Unfortunatly i can't add any NIC to my servers.
If i shut down all my VM's except one and do the copy test i get 130MB/s.
Any idea about what i am doing wrong ?
Thx in advance.
RZ