000-221 · Question #119
How can an administrator determine if DLPAR operations can be performed for a specific LPAR?
The correct answer is B. Run the IsrsrclBM.MCP command on the LPAR. DLPAR capability on an LPAR depends on the RMC subsystem being active; querying the IBM.MCP resource class confirms whether the management console provider is running.
Question
How can an administrator determine if DLPAR operations can be performed for a specific LPAR?
Options
- ARun the Isdlpar -partition command on the local HMC.
- BRun the IsrsrclBM.MCP command on the LPAR.
- CRun the Iparstat -dlpar command on the LPAR.
- DRun the rmcctrl -d command on the local HMC.
How the community answered
(56 responses)- A4% (2)
- B84% (47)
- C9% (5)
- D4% (2)
Why each option
DLPAR capability on an LPAR depends on the RMC subsystem being active; querying the IBM.MCP resource class confirms whether the management console provider is running.
`lsdlpar` is not a standard AIX or HMC command; DLPAR capability is verified through RMC on the LPAR itself rather than through a dedicated listing command on the HMC.
The `lsrsrc IBM.MCP` command queries the Resource Monitoring and Control (RMC) subsystem for the IBM Management Console Provider resource class. If this resource is active and communicating with the HMC, it confirms that RMC is operational and that DLPAR operations (CPU, memory, I/O add/remove) can be performed on that LPAR.
`lparstat` reports LPAR runtime statistics such as CPU utilization and entitlement, but does not have a `-dlpar` flag that reports whether DLPAR operations are currently possible.
`rmcctrl -d` stops or disables the RMC daemon rather than querying its status, which would actually remove DLPAR capability rather than verify it.
Concept tested: AIX DLPAR capability verification via RMC
Source: https://www.ibm.com/docs/en/aix/7.3?topic=management-dynamic-logical-partitioning
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