QA:Testcase attach a volume to an instance

From FedoraProject

(Difference between revisions)
Jump to: navigation, search
Line 50: Line 50:
  
 
  $> df -h /dev/vdc
 
  $> df -h /dev/vdc
 +
 +
Unmount the volume again:
 +
 +
$> umount /dev/nova-volume
 +
 +
Detach and delete the volume:
 +
 +
$> euca-detach-volume vol-00000001
 +
$> euca-delete-volume vol-00000001
  
 
|results=
 
|results=
  
 
The file system should be created, mounted and
 
The file system should be created, mounted and
reported correctly by df
+
reported correctly by df.
 +
 
 +
There should be no new errors in the logs:
 +
$> grep -i error /var/log/nova/*.log
 
}}
 
}}
  
 
[[Category:OpenStack Test Cases]]
 
[[Category:OpenStack Test Cases]]
 
[[Category:Cloud SIG]]
 
[[Category:Cloud SIG]]

Revision as of 11:17, 20 October 2011

Contents

Description

Provide nova-volumes to compute instances

Nova-volume is a service that allows you to give extra block level storage to your OpenStack Compute instances (using iSCSI and LVM)

Setup

Start the SCSI target daemon

$> sudo service tgtd start
$> sudo chkconfig tgtd on

Ensure the nova-volume service is enabled

$> sudo nova-manage service list 

How to test

Create a new 5GB volume

$> euca-create-volume -s 5 -z nova

View status of volumes, and wait for it to become 'available'

$> euca-describe-volumes

Make the storage available to the instance (note -d is the device on the compute node)

$> euca-attach-volume -i i-00000001 -d /dev/vdc vol-00000001

ssh to the instance and verify that the vdc device is listed in /proc/partitions

$> cat /proc/partitions

Now make the device available if /dev/vdc is not already present

$> mknod /dev/vdc b 252 32

Create and mount a file system directly on the device

$> mkfs.ext3 /dev/vdc
$> mkdir /mnt/nova-volume
$> mount /dev/vdc /mnt/nova-volume

Display some file system details

$> df -h /dev/vdc

Unmount the volume again:

$> umount /dev/nova-volume

Detach and delete the volume:

$> euca-detach-volume vol-00000001
$> euca-delete-volume vol-00000001

Expected Results

The file system should be created, mounted and reported correctly by df.

There should be no new errors in the logs:

$> grep -i error /var/log/nova/*.log