3.6. Managing Virtuozzo Storage Licenses¶
This section describes the process of managing Virtuozzo Storage licenses. You will learn to do the following:
- Install a new license for a Virtuozzo Storage cluster
- Update the installed license
- View the installed license contents
- Check the current license status
3.6.1. Obtaining the Hardware Node ID¶
The Hardware Node ID (HWID) is required to purchase a Virtuozzo Storage license. You can obtain the HWID with the vstorage stat --license-hwid command. For example:
# vstorage -c stor1 stat --license-hwid
...
3F96.DFF2.EAF6.CE86.DD49.786C.DC01.3D53
Note
A Virtuozzo Storage Hardware Node ID is not the same as a Virtuozzo Hardware Node ID. For details on how to obtain a Virtuozzo HWID, see the Virtuozzo User’s Guide.
3.6.2. Installing the License¶
Along with installing Virtuozzo licenses on all clients in a cluster, you need to install a separate license to start using the Virtuozzo Storage functionality. One license is required per cluster. You can install the license from any server participating in the cluster: an MDS server, a chunk server, or a client.
To install the license, use the vstorage load-license command:
# vstorage -c stor1 load-license -p XXXXXX-XXXXXX-XXXXXX-XXXXXX-XXXXXX
If you have obtained the license in the form of a file, you can install it by using the -f option instead of -p and specifying the full path to the license file:
# vstorage -c stor1 load-license -f /etc/storlicense
3.6.3. Updating the License¶
In Virtuozzo, you can use the vstorage update-license command to update the license currently installed on your server. When executed, the utility connects to the Key Authentication (KA) server, retrieves a new license, downloads it to the server, and installs it there.
To update a license, do the following:
- Make sure that the server where you want to update the license is connected to the Internet.
- Run the
vstorage update-licensecommand to update the license.
For example, to update a license installed in the pcs1 cluster, execute this command:
# vstorage -c pcs1 update-license
By default, vstorage obtains a new license from the default KA server. However, you can explicitly specify what KA server to use by passing the --server option to the command:
# vstorage -c pcs1 update-license --server ka.server.com
Once you run the command, vstorage will connect to the KA server with the hostname of ka.server.com, download a new license, and install it on your server.
3.6.4. Viewing the License Contents¶
You can use the vstorage view-license command to view the information on the license currently installed in your cluster. When executed, the utility processes the license and shows its contents on the screen. A sample output of vstorage view-license is given below:
# vstorage -c stor1 view-license
HWID: XXXX.XXXX.XXXX.XXXX.XXXX.XXXX.XXXX.XXXX
PCSSTOR
status="ACTIVE"
version=1.0
expiration="08/24/2012 19:59:59"
graceperiod=3600
key_number="PCSS.XXXXXXXX.XXXX"
platform="Linux"
product="PCSS"
gracecapacity=5
autorecovery=0
autorebalance=0
snapshots=1
capacity=500
replicas=5
The main license parameters are explained in the table below.
| Name | Description |
|---|---|
| HWID | Cluster ID. |
| status | License status. For details, see Checking the License Status (p. 46). |
| version | Version of Virtuozzo Storage for which the license was issued. |
| expiration | License expiration date and time. |
| graceperiod | Period, in seconds, during which Virtuozzo Storage continues functioning after the license has expired. |
| key_number | Key number under which the license is registered on the Key Authentication server. |
| platform | Operating system with which the license is compatible. |
| product | Product for which the license has been issued. |
| gracecapacity | Amount of disk space that data chunks may occupy in the cluster, in per cent to the capacity limit value. For example, if the capacity limit is set to 1 TB, and the grace capacity is 5%, data chunks may use 50 GB above the capacity limit. |
| capacity | Total amount of disk space, in GB, data chunks may occupy in the cluster. To view the disk space currently used by chunks, run the vstorage top command, press the V key on your keyboard, and check the FS field. For details, see Understanding Disk Space Usage. |
| replicas | Maximum number of replicas a data chunk may have. |
| autorecovery | Denotes whether the auto-recovery feature is enabled (1) or disabled (0). |
| autorebalance | Denotes whether the auto-rebalance feature is enabled (1) or disabled (0). |
| snapshots | Denotes whether the snapshots feature is enabled (1) or disabled (0). |
3.6.5. Checking the License Status¶
You can check the status of your license in one of the following ways:
Using the
vstorage view-license, for example:# vstorage -c stor1 view-license | grep status status="ACTIVE"
Using the
vstorage statorvstorage topcommand, for example:# vstorage -c stor1 stat | grep License connected to MDS#1 License: PCSS.XXXXXXXX.XXXX is ACTIVE
The table below lists all statuses a license can have.
| Status | Description |
|---|---|
| ACTIVE | License is valid and active. |
| VALID | License is valid and can be installed in the cluster. |
| EXPIRED | License has expired. |
| GRACED | License is currently on the grace period or data chunks in the cluster use disk space from the grace capacity. |
| INVALID | License is invalid (for example, because its start date is in the future). |