eG Monitoring
 

Measures reported by AS400StorageTest

This test monitors the storage subsystem of the AS400 server and reveals how effectively the storage pools on the server are utilized.

Measurement Description Measurement Unit Interpretation
Total_auxiliary_storage The total auxillary storage space on the server. MB  
System_ASP The storage capacity of the system auxillary storage pool. Number  
System_ASP_used The percentage of the system auxillary storage pool used. Percent Auxiliary storage pools (ASPs) are individual disks reserved for particular objects (such as individual libraries). If the value of this measure increases consistently, it is indicative of excessive usage of the storage pool.
Current_unprotected_used The current amount of storage space in use by temporary objects. MB  
Max_unprotected_used The largest amount of storage for temporary objects used at any one time since the last IPL. MB  
Permanent_addresses The percentage of the maximum possible addresses for permanent objects that have been used. Percent Each object has a single permanent address to which it is referred by all users and processes. A high value of this measure is indicative of a large number of permanent objects being created.
Temporary_addresses The percentage of the maximum possible addresses for temporary objects that have been used. Percent A high value of this measure is indicative of a large number of temporary objects being created.
Num_proc Indicates the number of processors that are currently available on the server. Number  
Num_pool Indicates the number of memory pools available on the server. Number A memory pool is a logical division of main memory or storage that is reserved for processing a job or group of jobs. Controlling the number and size of the memory pools, administrators can control how much work can be done in a subsystem. The greater the number of the pools in the subsystem, the more work can be done in that subsystem. Therefore, the value of this measure is preferred to be high. A low value of this measure could indicate the memory contention on the system, and would require investigation.
Num_part Indicates that number of logical partions that are created on the server. Number Ideally, the value of this measure should be high. Logical partitioning is the ability to make the server run as if it were two or more independent servers. Each logical partitioned server operates as an independent logical server. The logically partitioned servers can reduce the number of physical servers that are needed within an enterprise. This eliminates the need for, and expense of, additional resources.
Act_thread Indicates the number of threads that are currently active on the server. Number Ideally, the value of this measure should be high. A sudden/gradual drop in the value of this measure indicates that the jobs are executing slowly, and may lead to processing bottleneck on the server.
Cur_proc Indicates the number of processors that are currently allocated to the logical partitions on the server. Number A high value of this measure is indicative of a large number of temporary objects being created.
Cur_perf Indicates the percentage of interactive processors on the server. Percent Interactive processors are the processors that are currently assigned to the one-processor logical partitions. The interactive processing capacity of the interactive processors is calculated based on the ratio between the number of interactive processors and the total number of processors available on the server.

For example, for a server with six installed processors and three activated processors with three one-processor partition, you cannot allocate more than 50% of interactive capacity across all three processors. This is because you only have access to interactive capacity for the three activated processors. Therefore, if you create three one-processor partitions, you can allocate 16.7% interactive capacity for each partition. But if you attempt to allocate 16.7% interactive capacity for two partitions and 30% interactive for the third partition, the third partition will fail.
Share_proc_pool Indicates the percentage of shared processors that were utilized by the logical partitions from the shared processor pools. Percent The logical partitions can be configured to use the physical processors on the AS400 server as either dedicated or shared processors. The logical portitions that use the shared processors are called as capped partitions. The processing capacity of the shared processors is shared among multiple capped partitions. You can assign a specific amount of the processing capacity in the shared processor pool to each logical partition that uses shared processors.
Uncap_CPU_used Indicates the percentage of processors utilized by the uncapped logical partitions. Percent An uncapped logical partition is a logical partition that is assigned with a dedicated processor. The uncapped partition's access to processor resources can increase as demands warrant and availability supports.