QA:Testcase attach a volume to an instance

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  $> euca-attach-volume -i i-00000001 -d /dev/vdc vol-00000001
 
  $> euca-attach-volume -i i-00000001 -d /dev/vdc vol-00000001
 
|results=
 
  
 
ssh to the instance and verify that the vdc device
 
ssh to the instance and verify that the vdc device
 
is listed in /proc/partitions
 
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
 +
 +
|results=
 +
 +
The file system should be created, mounted and
 +
reported correctly by df
 
}}
 
}}
  
 
[[Category:OpenStack Test Cases]]
 
[[Category:OpenStack Test Cases]]
 
[[Category:Cloud SIG]]
 
[[Category:Cloud SIG]]

Revision as of 09:12, 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

Expected Results

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