Checking system configuration in the AIX operating system

Verifying the availability of processor resources

Run the dsh -av "lsdev -C | grep proc | grep AVAILABLE" | wc –l command. The total number of processors available in the cluster display.
If the total number of processors in the cluster does not appear, complete the following steps:
1. Verify that all servers are powered on
2. Check to see if the dsh command is locating all logical partitions, and fix problems if necessary.
3. Determine which processors are having problems by running the dsh -av "lsdev -C | grep proc | grep -v AVAILABLE" command.
4. After you have identified the problem processor, check the Hardware Management Console (HMC) that controls the server and complete the required service actions. If no serviceable events are found, try any isolation procedures for unconfigured processors that are found in the system service information.
5. When all processors are available, continue with the procedure to Verifying the availability of memory resources.
If processor unconfiguration persists, contact your next level of hardware support.
Verify that processors are running at expected frequencies by using the dsh –av “/usr/pmapi/tools/pmcycles –M” command.

To verify the availability of memory resources, perform the following steps:

Run the following command:
```
dsh -av "lsattr -E -l mem0 | awk '{ if (\$1 ~/goodsize/ ) { g=\$2}
else { p=\$2 }}END{d=p-g; print d}'" | grep -v ": 0"
```
Note: The result of the awk parameter is the difference between physical memory and available memory. Unless there is unconfigured memory, if you remove the grep -v ": 0" portion of the command, every logical partition returns 0.
If the operating system has access to all memory resources, a command prompt is shown without data. You can exit the diagnostics.
If memory requires configuration, check the HMC for serviceable events referring to controlling the logical partitions on the server and repair it as instructed.
Note: Before you perform a memory service action, ensure that the memory was not unconfigured for a specific reason. If the network still has performance problems contact your next level of support.
If no problems are found in the HMC, perform any service procedures for diagnosing unconfigured memory.
If the memory unconfiguration persists, contact your next level of support.