Bug Reference

CLOUDSTACK-6142

Branch

4.4, master

Introduction

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 a primary storage that can be shared across clusters. 

Purpose

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

References

• Zone-wide primary storage target

Document History

Glossary

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

Users Communities

Supported Hypervisor

This feature is implemented for Windows Server 2012 R2 and Hyper-V 2012 R2 (Core).

Architecture and Design description

Web Services APIs

UI flow

IP Clearance

No IP dependencies are introduced by this feature.

Appendix

Appendix A:

Appendix B: