Hitachi

JP1 Version 12 JP1/Performance Management - Remote Monitor for Platform Description, User's Guide and Reference


Physical Disk Busy Status (real-time report indicating the length of time the disk was busy)

Organization of this page

Overview

The Physical Disk Busy Status report displays the percentage of time the current disk was busy. The display format is a bar graph.

Storage location

/RM Platform/Troubleshooting/Real-Time

Record

PI_PDSK

Fields

Table 6‒60: Description of fields (Physical Disk Busy Status (real-time report indicating the length of time the disk was busy))

Field name

Description

Busy %

Percentage of the time the disk was busy during read and write request processing.

In UNIX, this value might exceed 100 when device processing is executed continuously.

ID

In Windows:

Physical disk number

In UNIX:

Device name

Polling Time

Time the performance data was collected on the PFM - RM host

Queue Length

In Windows:

Average number of read and write requests placed in the disk queue

In UNIX:

Length of the device queue. A one-second volume of I/O processing is indicated as 1.

Read Counts/sec

Disk read processing speed (times/second)

Read MBytes/sec

Speed of data transfer to the disk during read processing (megabytes/second)

Target Host Time

Time the performance data was collected on the monitored host

Total Counts/sec

Disk read and write processing speed (times/second)

Total MBytes/sec

Speed of data transfer between disks during read and write processing (megabytes/second)

Write Counts/sec

Disk write processing speed (times/second)

Write MBytes/sec

Speed of data transfer to the disk during write processing (megabytes/second)