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From: Sangeetha Hariharan <Sangeetha.Hariharan@citrix.com>
To: "dev@cloudstack.apache.org" <dev@cloudstack.apache.org>
Date: Mon, 8 Apr 2013 18:34:28 -0700
Subject: RE: [DIscuss]Storage image store plugin framework refactoring
Thread-Topic: [DIscuss]Storage image store plugin framework refactoring
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 <CD88A0C7.15D94%min.chen@citrix.com>
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Min,

Could you also include the details of the API changes (new parameters)  tha=
t will be proposed as part of this feature?=20
Also it would be helpful if you list the request and response parameters fo=
r the new API calls.
For all the API calls that are being deprecated , is there any specific err=
or message that will be returned?

-Thanks
Sangeetha=20

-----Original Message-----
From: Min Chen [mailto:min.chen@citrix.com]=20
Sent: Monday, April 08, 2013 4:45 PM
To: dev@cloudstack.apache.org
Subject: [DIscuss]Storage image store plugin framework refactoring

Hi All,

Currently CloudStack does not offer a flexible pluggable framework for user=
s to easily integrate and configure any 3rd-party object stores for such ba=
ckup services as registering templates, taking snapshots, etc. Along with E=
dison's recent refactored storage subsystem 2.0 that mainly refactored curr=
ent CloudStack primary storage implementation,  we are proposing to develop=
 a storage backup object store plugin framework to allow CloudStack to syst=
ematically manage and configure various types of backup data stores from di=
fferent vendors, like NFS, S3, Swift, etc. With this new plugin framework, =
we would like to achieve following functionalities:
1. Support different object store providers in a uniform and pluggable fash=
ion.
2. Enable region wide object backup using S3-like object store.
3. Provide pluggable data motion strategies to handle data transfer from on=
e data store to another data store.
4. Provide a scalable cache storage framework while moving data between pri=
mary storage and backup storage for certain hypervisor needs.
5. Support flexible combinations of primary storage, secondary storage and =
hypervisors, such as (NFS, NFS, Xen), (NF3, S3, Vmware), (ISCSI, Swift, KVM=
), ...., etc.
The proposed ImageStore plugin framework architecture is detailed in our FS=
 here: https://cwiki.apache.org/confluence/display/CLOUDSTACK/Storage+Backu=
p+Object+Store+Plugin+Framework.
The JIRA ticket to track this feature is: https://issues.apache.org/jira/br=
owse/CLOUDSTACK-1975. The work is currently carried out in feature branch  =
"object_store".
Please let me know your comments and suggestions.

Thanks
-min