Remote Monitoring & Management Help

Physical Disk

This may be used when analyzing the disk subsystem including the disk controller, the I/O bus and the disk, itself including any partitions, and gives an indication of the overall performance of the disk.

There are three components to this check that are sampled every 5 seconds:

Average Read Queue Length: this is the average queue length for the read requests issued to the device.

By default an Alert is generated where the read queue length is greater than 2.

Average Write Queue Length: this is an average queue length for the write requests issued to the device.

By default an Alert is generated where the write queue length is greater than 2.

Average Percentage Disk Time: this is the percentage of time that the disk is busy with read/write activity.

By default an Alert is generated where the average percentage disk time is greater than 50%.

linux_spm_phys_disk