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From "Wido den Hollander (JIRA)" <>
Subject [jira] [Commented] (CLOUDSTACK-1301) VM I/O Throttling
Date Sat, 16 Feb 2013 14:05:12 GMT


Wido den Hollander commented on CLOUDSTACK-1301:

Yeah, but not all primary storage is able to do so.

So I wouldn't be against handing this over to the primary storage, but if somebody wants to
use the cgroups for this, they are more then welcome to do so arent they?

But first I'd implement the actual polling of the IOps and store them in the usage database
so admins can see how much IOps are being used by one Instance.
> VM I/O Throttling
> -----------------
>                 Key: CLOUDSTACK-1301
>                 URL:
>             Project: CloudStack
>          Issue Type: New Feature
>      Security Level: Public(Anyone can view this level - this is the default.) 
>    Affects Versions: 4.0.0
>            Reporter: Wei Zhou
> VM I/O Throttling, to set the maximum disk I/O rate of VMs.
> Virtual machines are running on the same storage device (local storage or share strage).
Because of the rate limitation of device (such as iops), if one VM has large disk operation,
it may affect the disk performance of other VMs running on the same storage device.
>  It is neccesary to set the maximum rate and limit the disk I/O of VMs.
> More details:

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