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From "Daan Hoogland (JIRA)" <>
Subject [jira] [Updated] (CLOUDSTACK-6883) Golden Primary Storage
Date Tue, 12 May 2015 12:05:25 GMT


Daan Hoogland updated CLOUDSTACK-6883:
    Fix Version/s:     (was: 4.5.1)

> Golden Primary Storage
> ----------------------
>                 Key: CLOUDSTACK-6883
>                 URL:
>             Project: CloudStack
>          Issue Type: New Feature
>      Security Level: Public(Anyone can view this level - this is the default.) 
>          Components: Storage Controller
>    Affects Versions: 4.5.0
>            Reporter: Hieu LE
>            Assignee: Hieu LE
>              Labels: features
>             Fix For: 4.5.2
> Currently all VMs in CloudStack have not been guaranteed IOPS from the primary storage,
especially shared storage. In some cases (such as deploying a large number of VMs), this could
lead to slow performance and high boot-time of VM.
> In CloudStack 4.3, all VMs deployed in XenServer always have a child image VHD stay on
the same storage repository with parent image (master image or golden image). Thus, this page
describe a new approach in order to increase VM performance by decrease total IOPS in primary
storage. The method is simply move the parent image to a new high-IOPS primary storage, similar
with XenServer Intellicache feature. This method can reduce storage cost by 30-40%, compare
to 80% of Intellicache.

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