- "Grant McWilliams" wrote:
> I'm replacing my setup with
> three Intel SSDs in a RAID0 with either iSCSI or ATAoE. The RAID0 will
> be synced to a disk based storage as backup. We'll see pretty soon how
> many concurrent disk based operations this setup can handle.
I haven't benchmarked any
> > If all the 40 VMs start copying files at the same time that would mean
> > that the bandwidth share for each VM would be tiny.
>
> Would they? It's a possibility, and fun to think about, but what are the
chances? You will usually run into this with backups, cron, and other
scheduled [non-busin
Pasi Kärkkäinen wrote:
>
> 10 Gbit Ethernet makes sense if you need over 110MB/sec throughput with
> sequential reads/writes with large block sizes.. that's what 1 Gbit ethernet
> can give you.
>
You can also bond 1Ge ports to get higher throughput. Buying an ethernet
switch that supports bon
On Mon, Mar 01, 2010 at 09:34:45PM -0600, Christopher G. Stach II wrote:
> - "Dennis J." wrote:
>
> > What I'm aiming for as a starting point is a 3-4 host cluster with
> > about 10 VMs on each host and a 2 system DRBD based cluster as a
> > redundant storage backend.
>
> That's a good idea.
> Don't waste your money on iSCSI adapters. Just get ones with TOEs.
Just a point of note, if your hypervisor is derived from Linux
(excluding some vendors who may have hacked in support), the TOEs (TCP
Offload Engine) functions are *not* supported in Linux.
--
Drew
"Nothing in life is to be f
- "Dennis J." wrote:
> What I'm aiming for as a starting point is a 3-4 host cluster with
> about 10 VMs on each host and a 2 system DRBD based cluster as a
> redundant storage backend.
That's a good idea.
> The question that bugs me is how I can get enough bandwidth between the
> hosts an
Hi,
up until now I've always deployed VMs with their storage located directly
on the host system but as the number of VMs grows and the hardware becomes
more powerful and can handle more virtual machines I'm concerned about a
failure of the host taking down too many VMs in one go.
As a result I'
