15.3. Example: create a shared cluster container
This section tells how to create a sample shared container and provides
instructions to help you complete the following task:
Example 15-2. Create a shared cluster container
Given a system with three available shared disks
(sdd, sde, and
sdf),
use the EVMS Cluster Segment Manager to combine these disk drives into a shared
container called Shar1.
15.3.1. Using the EVMS GUI
To create a shared cluster container with the EVMS GUI, follow these steps:
Select
->-> to see a list of plug-ins that support container creation.
Select the .
Click Next.
The next dialog window contains a list of storage objects that
the CSM can use to create a container.
Select sdd, sde, and sdf from the list.
Click Next.
You do not need to change the "Node Id" field. Select
Storage Type as
from the second pull-down menu.
Enter the name Shar1 for the Container Name.
Click Create. A window opens to display the outcome.
Commit the changes.
Quit the GUI and run evms_activate on each of the cluster
nodes so that the nodes discover the volume.
This process will be automated in future releases of EVMS.
15.3.2. Using Ncurses
To create a shared cluster contained with the Ncurses interface, follow these steps:
Select ->-> to see a list of plug-ins that support container creation.
Scroll down with the down arrow and select Cluster Segment Manager by
pressing spacebar. The plug-in you selected is marked with an "x."
Press Enter.
The next submenu contains a list of disks that the Cluster Segment Manager finds
acceptable to use for the creation of a container.
Use spacebar to select sdd, sde,
and sdf from the list. The disks you select are marked with an "x."
Press Enter.
The Create Storage Container - Configuration Options menu open;
ignore the "Node Id" menu.
Scroll down with the down arrow and press spacebar on the
Storage Type. A list of storage types opens.
Scroll down with the down arrow to
and press spacebar.
Press Enter.
Scroll down with the down arrow to
and press spacebar.
The Change Option Value menu opens and asks for the Container Name. Type
in the name of the container as Shar1, and press Enter.
Press Enter to complete the operation.
Quit Ncurses and run evms_activate on each of the cluster
nodes. This process will be automated in future releases of EVMS.
15.3.3. Using the CLI
An operation to create a shared cluster container with the CLI takes two parameters:
the name of the container and the type of the container.
On the CLI, type the following command to create shared container Shar1:
create: container,CSM={name="Shar1",type="shared"},sdd,sde,sdf |
Run evms_activate on each node of the cluster. This process will be automated in future releases of EVMS.
