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December 15th, 2020 15:00
Dell Poweredge T140 Hyper-V VM slow performance
Hi,
I'm using Hyper-v bare metal 2016 and dell PowerEdge T140 to make a VM for Sql Server 2016, but i noticed a slow performance in the VM.
The CPU and memory are good, but the disk queue stuck between 5 and 10.
I already used Dell PowerEdge R240 to made the same environment ( a VM with windows server 2016 and Sql server 2016), everything works well.
Hypervisor: Hyper-V 2016
VM OS: Windows Server 2016
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DELL-Joey C
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December 15th, 2020 20:00
Hi,
If the performance is slow in disk queue, it might be the RAID controller is not supporting the OS. May I know if the 2 servers are using the same type of RAID controller?
Is the T140's hardware firmware up to date?
DELL-Stefan R
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December 17th, 2020 02:00
Hi,
yes, you have to recreate the VD. There is no option to migrate from the software RAID to the hardware RAID, I'm afraid.
MMASLOUH
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December 16th, 2020 23:00
Hello,
In PowerEdge T140 i can only find PERC S140.
But in PowerEdge R240 i can chose between PERC H330 or PERC S140, and i go with PERC H330.
DELL-Stefan R
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December 17th, 2020 00:00
Hi.
The T140 is sold with several storage controller options, maybe the one you own was bought with just the S140. If you send over the systems service tag in a private message, we can check this for you.
If there is just the S140 this is the reason for the performance "issue" - S140 is just a software RAID controller, so, all the I/O are managed by the CPU.
You should consider buying an add-in card then, the T140 supports H330 (75D1H, CG2YM, TD2NM, 99T5J)[https://i.dell.com//sites/doccontent/shared-content/data-sheets/en/Documents/Dell-PowerEdge-RAID-Controller-H330.pdf] and the H730P with cache (X4TTX, J6MDM) [https://i.dell.com//sites/doccontent/shared-content/data-sheets/en/Documents/Dell-PowerEdge-RAID-Controller-H730P.pdf].
I added the part numbers in brackets, for searching purposes
BR
Stefan
MMASLOUH
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December 17th, 2020 01:00
Hello @DELL-Stefan R
Thanks for the answer.
So, is the change of raid controller from S140 to H330 needs to rebuild the raid disks and reinstall the OS or i can switch to H330 without losing data ??