eG Monitoring
 

Measures reported by DDomainDiskTest

This test monitors the current state, capacity, temperature of each disk as well as I/O operations performed on each disk in the Data Domain storage system. Using this test, administrators can identify the error-prone disks that may fail any time using which they can avert potential disk failures. In addition, this test points administrators to the temperature of the disks using which abnormalities in the disk temperature can be easily identified and rectified before any irreversible damage is caused to the disk.

The measures made by this test are as follows:

Measurement Description Measurement Unit Interpretation
Disk_status Indicates the current status of this disk.   The values reported by this measure and their numeric equivalents are available in the table below:

Measure Value Numeric Value
Ok 1
Unknown 2
Absent 3
Failed 4

Note:

This measure reports the Measure Values listed in the table above to indicate the current status of the disk. However, in the graph, this measure is indicated using the Numeric Values listed in the above table.
Disk_capacity Indicates the capacity of this disk. GB  
Disk_busy Indicates the percentage of disk that is currently in use. Percent A consistently high value for this measure is a cause of concern as it indicates that the disk is running out of space. Administrators may need to add more space to the disk to maintain optimal utilization of the disk.
Disk_read_rate Indicates the rate at which disk sectors are read from this disk. Sectors/sec Comparing the value of these measures across the disks helps you in identifying the disk that is busy in terms of disk reads and disk writes.
Disk_write_rate Indicates the rate at which disk sectorers are written to this disk. Sectors/sec
Disk_read_write Indicates the average rate at which data is read from/written to this disk. Kb/sec  
Disk_temp Indicates the current temperature of this disk. Celcius The value of this measure should be within the specified optimal range. A gradual/sudden increase in the value of this measure indicates abnormal condition which when left unattended will drastically affect the performance of the storage system.