Shoddy performance on VMs

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Joined
28 Oct 2002
Posts
1,819
Location
SE London
Heya, I've been scratching my head for a while with this - my VM's performance in my lab are appalling.

My setup is 2 nodes going via multi-channel SMB3 over a unmanaged HP GbE switch to my storage server, which is 4x2Tb's in a RAID5, which has enough performance to server up the two Hyper-V nodes with ease, and a copy of a 4Gb MKV goes at ~170-180MB\s. But the VM's are really laggy. Takes ~1m to open server manager, running installers takes ages... Overall, really sluggish.

As you can see from below my array isn't to blame,

qxdq3hZ.png


I was thinking of moving over to iSCSI w/ CSV cache, as I'm not sure if it's because of MC SMB3 that it's sluggish... I also am going to borrow a managed switch with LACP and bond them too.

But I was wondering if anyone else could give me some clues as to why the performance is so shoddy, and also any ideas as to improving performance as a whole...
 
Hyper-V, as I'm quite adept at vSphere and wanted to mess about with HV... Which without the full SC suite, I think that the reporting on disk latency is rather non-existence.

But CPU\RAM are fine, CPU avg 5%, 10/12Gb free on each node.
 
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