09-06-2012 06:20 AM - edited 03-01-2019 10:36 AM
i currently have a case for this with cisco but i thought i would post to the community to seek any advise...
I have 2 ucs c210 servers,
Both are almost identical.
Ucs1 - Has 24 threads of CPU power and 32gb ram,
Ucs2 - has 16 threads of CPU and 48gb ram.
Other then that both have identical server os - win2k8 r2 running hyperv
Same raid configuration and same hard disks.
Ucs 1 is getting significantly higher IOPS
This becomes ever more clearer when benchmarking a guest server.
Attached is benchmarks of guest on each server (migrated server)
I have swapped out the raid card under wty with Cisco, however performance was not improved.
So..
Any other thoughts as to the big performance difference?
Could it Be a windows setting somewhere a I've missed?
Or is a a mainboard or other hardware fault?
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Solved! Go to Solution.
09-20-2012 05:04 PM
Hi Robert,
Thanks for the update
09-07-2012 06:41 AM
Antivirus off on both servers or exclusions set for the files/directory the tool is using?
NTFS cluster sizes and alignment the same on both servers?
09-09-2012 05:06 PM
No AV on the host server
NTFS is default settings
same RAID config on both servers. - just installed brand new disks and setup exact same raid on each host. no load on this new virtual disk.
09-20-2012 03:29 PM
This ended up being a Microsoft Hyper-V issue and > 32GB ram.
There was a hotfix for this, however it appears that the hotfix has been rolled into the lastest updates for w2k8r2.
09-20-2012 05:04 PM
Hi Robert,
Thanks for the update
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