Volumes
Volumes
The Volumes page is used to create zpools and cluster them to create a service.
Preparing Pools to Cluster
Pools must be imported on one of the nodes before they can be
clustered. Check their status by selecting the Pools option on the
side menu.
Shared-nothing clusters
For a shared-nothing cluster, the pools will need
to have the same name and be individually imported on each node
manually.
In the above example pool1 and pool2 are exported, snpool is
imported. To import pool1 first select it:
The select Actions, followed by Import Pool:
The status of the pool should now
change to Imported and CLUSTERABLE:
Unclusterable Pools
Should any issues be encountered when importing the pool it will
be marked as UNCLUSTERABLE. Check the RestAPI log
(/opt/HAC/RSF-1/log/rest-operations.log) for details on why the
import failed.
With a shared-nothingcluster, this may happen if
the pools aren't imported on both nodes.
The pool is now ready for clustering.
Creating a Pool
If a zpool isn't already created, this can be done via the
WebApp. Click Volumes on the side menu, then +Create:
Enter the desired Pool Name and select a Pool Mode (jbod, raidz2 or mirror). Add your drives to the pool by selecting them in the list and choosing their role using the buttons at the bottom.
To configure multiple mirrors in a pool, select the first set of
drives from the list and add them as data disks. Next select your next
set of drives, and click data then New mirror:
Once configured, click submit and your pool is created and ready to be clustered:
Clustering a Pool
Highlight the desired pool
to be clustered (choose only pools marked CLUSTERABLE ), then select Actions
followed by Cluster this pool:
Fill out the description and select the preferred node for the service:
What is a preferred node
When a service is started, RSF-1 will initially attempt to run it on it's preferred node. Should that node be unavailable (node is down, service is in manual etc) then the service will be started on the next available node.
With a shared-nothing pool the GUID's for each pool will be shown:
To add a virtual hostname to the service click Add in the Virtual
Hostname panel. Enter the IP address, and optionally a hostname, in the
popup. For nodes with multiple network interfaces, use the drop down
lists to select which interface the virtual hostname should be assigned
to. Click the next button to continue:
Finally, click the Create button:
The pool will now show as CLUSTERED:
