cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
Announcements
AMA event- Migrating Existing Networks to Cisco ACI
646
Views
0
Helpful
4
Replies
Beginner

UCS C210 m2 low IOPS

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?

Sent from Cisco Technical Support iPad App

1 ACCEPTED SOLUTION

Accepted Solutions
Cisco Employee

UCS C210 m2 low IOPS

Hi Robert,

Thanks for the update

Performance decreases in Windows Server 2008 R2 when the Hyper-V role is installed on a computer that uses Intel Westmere or Sandy Bridge processors

http://support.microsoft.com/kb/2517329

View solution in original post

4 REPLIES 4
Cisco Employee

UCS C210 m2 low IOPS

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?

Highlighted
Beginner

UCS C210 m2 low IOPS

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.

Beginner

UCS C210 m2 low IOPS

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.

Cisco Employee

UCS C210 m2 low IOPS

Hi Robert,

Thanks for the update

Performance decreases in Windows Server 2008 R2 when the Hyper-V role is installed on a computer that uses Intel Westmere or Sandy Bridge processors

http://support.microsoft.com/kb/2517329

View solution in original post

CreatePlease to create content
Content for Community-Ad
August's Community Spotlight Awards
This widget could not be displayed.