Hello,
I'm having some issues with disk performance after deciding to virtualize my home environment. The specs on my "server" are not great, but I am having troubles accepting that I can ONLY get a maximum of 10MB/s out of my disks. I looked around quite a bit on the forums, though, I have not found anyone else having the same issue, I can only assume it is something I have done.
Hardware:
Core i5
8GB of DDR3 RAM
Intel Pro PT dual port adapter
Both disks are 1TB 7200RPM seagate drives
dd if=/dev/urandom of=/etc/test.txt
C236330+0 records in
236330+0 records out
121000960 bytes (121 MB) copied, 12.8659 s, 9.4 MB/s
For fun, I also added a second physical drive and provisioned a disk from it to the VM, It had the same speed. VMware tools has been installed on the guest system. I gave the VM 4GB of memory and 4 cpu's.
On my other system which acts as a samba server (non-virt), I am able to get 100MB/s write with the same physical disks.
As I write the end of this post, I just had an openfiler VM push 100MB/s using iSCSI that is being hosted on ESXi. Is there a magic config file I have to edit in linux to get the disks to operate at normal speed?