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4.4, master

Introduction

The intend of this feature is to enable support for When a data disk is needed by a virtual machine that resides in a different cluster; that is on a different primary storage than the current cluster/primary storage, it involves a costly and time consuming data copy operation. The volume is copied from one primary storage to another primary storage via the secondary storage. It'll be good to add support for a zone wide primary storage; that is , an administrator should be able to add a primary store storage that can be shared across cloudstack clusters.of live migration of a virtual machines with its volumes across hosts and storage pools. It'll also migration of volumes across storage pools while the volume stays attached to a running virtual machine.clusters. 

Purpose

This is a feature specification for supporting zone wide primary storage on Hyper-V.

References

• Storage motion in cloudstack
• http://blogs.technet.com/b/canitpro/archive/2013/03/21/step-by-step-completing-storage-live-migration-in-hyper-v.aspx
• http://msdn.microsoft.com/en-us/library/hh850079(v=vs.85).aspxZone-wide primary storage target

Document History

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Instance/vm - Virtual machine running on a hypervisor. The terms may be used interchangeably.

ZWPS - Zone wide primary storage

Feature Specifications

• Multiple clusters can share the same primary storage.
• Multiple zone wide primary storage can be added per zone.
• A cloudstack cluster can have both a cluster wide and zone wide primary storage.
• On upgrade, existing setup should not be impacted. That is, after upgrade, existing cluster wide primary storage should not be impacted and administrator can go ahead and add a zone wide or cluster wide primary storage.
• In cloudstack, only SMB 3.0 is supported as a primary storage on Hyper-V. The support for zone wide primary storage will be implemented only for SMB.

Scenarios

Test Guidelines

Support-ability Characteristics

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