Open Stack

Hi Poulus,

Have you enabled the cinder-backup service in your localrc? It doesn't start by default. My localrc looks like the following,

ENABLED_SERVICES=${ENABLED_SERVICES},c-bak,swift,swift3
SWIFT_REPLICAS=3

Can you verify that swift works? i.e. do 'swift stat' and 'swift list' work without error?

If c-bak is already enabled, can you paste its output for your backup request? Are there any obvious errors?

Thanks,

-stephen

--
Stephen Mulcahy   Systems/Software Engineer   HP Cloud Services
Postal Address: Hewlett Packard Galway Ltd, Ballybrit Business Park, Galway
Registered Office: Hewlett Packard Galway Ltd, 63-74 Sir John Rogerson's Quay, Dublin 2
Registered Number: 361933

From: Poulos, Brianna L. [mailto:Brianna.Poulos at jhuapl.edu]
Sent: 11 June 2013 14:52
To: openstack-dev at lists.openstack.org
Subject: [openstack-dev] [Cinder] Question Regarding Volume Backups

Hello All,

I have been trying to do a simple volume backup and restore on a devstack setup on a new Ubuntu VM, but have been having difficulties.  After I create the volume (using "cinder create 1") and the volume has an "available" status, I create a backup of the volume using "cinder backup-create <volume>".  After I do this, the volume stays stuck in a "backing-up" status, and the backup is stuck in a "creating" status.  I have left the VM up for over three days, and the statuses of both remain unchanged.  I am assuming that a backup should take place fairly quickly, especially for a 1GB volume, so I think there must be an issue with my setup.

For my devstack setup, I have the following in localrc (as per the instructions for Swift at http://devstack.org/localrc.html).

ENABLED_SERVICES+=,swift
SWIFT_HASH=66a3d6b56c1f479c8b4e70ab5c2000f5
SWIFT_REPLICAS=1
SWIFT_DATA_DIR=$DEST/data


I have tried creating a backup of a volume both with and without swift enabled, and see the same issues.  I have also tried creating a container before creating the backup.  I have tried with a VM that has 1024MB of memory, one with 2048MB of memory, and one with 4096MB of memory.  I have tried with a VM that has 8GB of storage, and one that has 16GB of storage.  I have also enabled SYSLOG, but I don't see any errors that stand out.  When I run the "swift.sh" script in the devstack/exercises directory, it executes successfully.

Does anyone have any suggestions to fix this problem?  Is there a configuration file that needs to be changed, or are there minimum memory and storage requirements in order to backup a volume?

Thank you for your help.

Regards,
Brianna Poulos
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