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From Leiser Heinz <>
Subject Cross Pool VM migration fails (local to shaed)
Date Wed, 06 Jan 2016 06:49:13 GMT
Hi all,

Our Environment: ACS 4.5.1 with XenServer 6.5.0 (Local Storage):

We plan to migrate all VM's from XenServer Cluster with local storage (ext) to a shared storage
pool (lvm) and have some challenges and questions. 

When we stop a VM which is on local Storage and move it to shared storage and start it, it's
Volume still shows "Storage Type = local".

When we then do a life migration, CloudStack moves the Volume back on a local Storage pool.

We assume this is because of the current Service Offering referred to the VM, which has a
Local Storage Flag set to"use_local_storage=1". 

When we try to change the Service Offering to an Offering with Storage Type = Shared Storage,
it's not possible, as they are not listed in the Compute Offering Pull-Down Menu. 

A work around would be to temporarily change the Flag "use_local_storage=1" of this Service
Offering (in the database) to 0 then Change the Service Offering to one with "Share Storage"
and revise the DB change.

Is there any trap we need to consider in this approach?
Has anyone experience with migration from a local Storage to a shared Storage with ACS 4.5/XenServer6.5?

What happen to the Template the VM was created from when we move to a shared storage, is there
any "Chain" / dependency to it? Do we need to move the Template also from local Storage to
the shared storage?

Thanks a lot for any response and advise 

Best regards 
EveryWare AG
Heinz Leiser

Zurlindenstrasse 52a
CH-8003 Zürich

T  +41 44 466 60 00
F  +41 44 466 60 10

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