Re: How to tell a VM to write more local ceph nodes than to the network.

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On 16 January 2015 at 17:15, Gregory Farnum <greg@xxxxxxxxxxx> wrote:
> I have set up 4 machines in a cluster.  When I created the Windows 2008
> server VM on S1 (I corrected my first email: I have three Sunfire X series
> servers, S1, S2, S3) since S1 has 36GB of RAM en 8 x 300GB SAS drives, it
> was running normally, pretty close to what I had on the bare metal.  About a
> month later (after being on leave to 2 weeks), I found a machine that is
> crawling at a snail pace and I cannot figure out why.

You mean one of the VMs has very slow disk access? Or one of the hosts
is very slow?

The Windows 2008 VM is very slow.  Inside Windows all seems normal, the CPU's are never more 20% used and when navigating even the menus take a long time to respond.  The Host (S1) is not slow.
 
In any case, you'd need to look at what about that system is different
from the others and poke at that difference until it exposes an issue,
I suppose.

I'll move the machine to one of the smaller hosts (S2 or S3).  I'll just have to lower the spec of the VM, since I've set RAM at 10GB, which is much more than S2 or S3 have.  Let's see what happens.

 
-Greg

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