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Hyper-V Bandwidth Limit

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haominghm
Posts: 4
Topic starter
(@haominghm)
New Member
Joined: 4 years ago

Hi

I execute them using solidcp 

You can locate the function at Configuration > Servers > "Your Server" > Hyper-V

image
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TechGuy
Posts: 205
(@hxkd)
Estimable Member
Joined: 5 years ago

aha, 😀 I saw the variables when setting up the templates again, but I never bothered looking at the function, this is great, dang this makes things a lot more expandable.. Nice thank you for waking me up to this !!  👍 👍 

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TechGuy
Posts: 205
(@hxkd)
Estimable Member
Joined: 5 years ago

As an addition, most times issues is caused with vmq on some servers like dell with broadcom adapters, etc it is advised to disable vmqueue, even altaro reccomends disabling this on all vms.. sorts out slow responses on network.

Get-VMNetworkAdapter -VMName $vmName | Set-VMNetworkAdapter -MaximumBandwidth 10000000
Set-VMNetworkAdapter -VMName $vmName -VmqWeight 0

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TechGuy
Posts: 205
(@hxkd)
Estimable Member
Joined: 5 years ago

Use this to check the current statuses of the adapters on the vms

Get-VMNetworkAdapter -ComputerName PROLIANTDL380 -VMname * | Select VMName, VMQweight

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TechGuy
Posts: 205
(@hxkd)
Estimable Member
Joined: 5 years ago

Other option you can also do is if you want to manage the disk quality of Service, is to manage the iops on the drive, each iop is 8k so you can prevent them from abusing the disk access

Set-VMHardDiskDrive -VMName $vmName -MaximumIOPS 50

Specifies the maximum normalized I/O operations per second (IOPS) for the hard disk. Hyper-V calculates normalized IOPS as the total size of I/O per second divided by 8 KB.

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Genadij
(@berkut)
Joined: 5 years ago

Estimable Member
Posts: 103

@hxkd that option exist when you create or modify a server.

Well 50 Max IOPS ~ 50 kb/s 🙂 It will be extremely slow for clients.

 

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TechGuy
(@hxkd)
Joined: 5 years ago

Estimable Member
Posts: 205

@berkut 50 iops would be 400k  50 x 8k =  400K  which is still slow, but you can adjust it based on server specifics, and drive type, ie ssd has highr iops than hdds, etc.. 🤣 🤣

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Genadij
(@berkut)
Joined: 5 years ago

Estimable Member
Posts: 103

@hxkd in our experience:

1000 IOPS ~ 5 mB/s, (+- 2mB)

2000 IOPS ~ 10 mB/s (+- 2mB)

etc.

HDDs/SSDs or Mixed (RAM & SSD & HDD), not matter.

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