eG Monitoring
 
Measures reported by EqlMemberStTest

A PS Series group is comprised of a single PS Series array or multiple arrays working together. Each array in a group is called a member. A member is a fully-functional, high-performance, highly-available storage array with mirrored write-back caches and multiple storage network connections.

Each member is composed of redundant components - disks, controllers with mirrored write-back caches, network interfaces, power supplies, and cooling fans.

This test monitors the space usage of the target group member, and promptly alerts you if disk space in the member array is over-utilized. In addition, the test reports the number of controllers and disks in the member array, and periodically checks the array temperature to report abnormalities (if any).

The measures made by this test are as follows:

Measurement Description Measurement Unit Interpretation
Total_space Indicates the total space in the member, currently. GB  
Used_space Indicates the amount of space in the member currently in use. GB Ideally, the value of this measure should be low. If the value is very close to that of the Total_space measure, it indicates that the member is running out of disk space. This can severely hamper the performance of applications that use the array for storage.
Number_of_controllers Indicates the number of controllers in the array, currently. Number  
Number_of_Disks Indicates the number of disks in the array, currently. Number  
Number_of_connections Indicates the number of iSCSCI initiators that are currently connected to the member array. Number An initiator is a client of an SCSI interface, via IP, that issues commands to request services from components, logical units of a server known as a target. A SCSI transport maps the client-server SCSI protocol to a specific interconnect. An initiator is one endpoint of a SCSI transport and a target is the other endpoint.

This is a good indicator of the load on the array.
Average_Temperature Indicates the average temperature of the array. Celcius A low value is desired for this measure.
Temperature_status Indicates the current temperature status of the member.   This measure reports either Good or Bad as the temperature status of this member.

The numeric values that correspond to the above-mentioned states are as follows:

State Numeric Value
Good 100
Bad 0

Note:

By default, this measure reports the above-mentioned States while indicating the temperature status of the array. However, in the graph of this measure, temperature status will be represented using the corresponding numeric equivalents - i.e., 0 and 100.
Free_space Indicates the free disk space that is currently available in this member. GB A high value is desired for this measure.
Free_percentage Indicates the percentage of space in the array that is currently free. Percent A high value is desired for this measure. A very low value indicates excessive utilization of the disk space in the array. This can severely hamper the performance of applications that use the array for storage.