You can increase or decrease the cores and memory in a domain by editing the domain resources. You can edit a domain that is deployed, or not yet deployed. Based on the state of the domain and the type of changes you make, the assistant provides you the option of making the changes immediately or later.
Users with the administrator role can edit any domain. Users with the user role can only edit domains they own.
Based on what you plan to do, you might need to shutdown applications and the OS because the assistant might shut down domain to complete the resource change.
Increase resources – these domain shutdown requirements apply according to the version of the SuperCluster software:
As of SuperCluster v2.5 or later, in most cases you can increase domain resources without stopping the domain. However, if the domain has a resource constraint and the domain is already assigned the maximum amount of resources, then the domain is shutdown.
Prior to SuperCluster v2.5, You must gracefully stop any applications that are running, shut down the OS. By confirming the action to add cores or memory in the SuperCluster Virtual Assistant, the domain is stopped (if running) from the Control Domain.
Decrease resources – You must gracefully stop any applications that are running, shut down the OS. By confirming the action to add cores or memory in the SuperCluster Virtual Assistant, the domain is stopped (if running) from the Control Domain.
Domain Details – Lists the host name, state, and type.
Constraints – Shows the minimum resource requirements for the domain type. If the active user has a resource allowance, then that user's allowed and available core and memory totals are also displayed.
Fixed Resources – Displays the total resources (including the exact core identifiers and memory segments) that are fixed for this domain. Fixed resources cannot be removed.
Active Resources – Shows the total cores and memory (including exact core identifiers and memory segments) that are currently allocated to this domain.
Increasing resources – Additional resources must be available on the compute node and within your resource allowance (if you have a resource allowance).
Decreasing resources – Can only be done if the domain currently has more resources than the minimum required for the domain type.
Choose one of the displayed buttons, which varies based on the state of the domain and the type of changes you made. This table lists the possibilities.
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In the I/O Domain Details screen, click Perform, Edit, or Cancel in the Pending Resource Alterations section.
Monitor deployment activity – See Monitoring Activity, Resource Alterations, and Health.
Go to the Domain Configuration Task Overview – See Domain Configuration Task Overview.