As I mentioned on Monday today I'll be taking a look at Hyper-V performance counters for Network and Storage.
From
the perspective of the network, the following objects provide all the required
data about the physical interfaces and the performance when virtualized.
•
Network
Interface
•
Hyper-V
Virtual Switch
•
Hyper-V
Legacy Network Adapter
•
Hyper-V
Virtual Network Adapter
As
stated previously the network side of things becomes more and more important as
we’re starting to have larger numbers of, and larger sized, virtual machines
undertaking the work.
The
network interface counter is still valid and is a very useful way of
understanding how the network ports are being used.
Finally
the storage counters provide a useful level of information relating to the disks,
both from the physical and virtual perspectives.
•
Physical
Disk
•
Hyper-V
Virtual IDE Controller
•
Hyper-V
Virtual Storage Device
As
with any OS level performance monitoring, the usual rules apply when dealing
with SAN based storage. The technology employed
by SAN’s to manage the disks and improve the performance e.g. caching,
buffering etc remain transparent to the OS, so be wary of how the data
is interpreted. Response times are usually
an indicator, disk utilization less so.
I'll conclude on friday with my top tips for managing Hyper-V capacity.
Rob Ford
Principal Consultant
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