
Storing period
Short-Range can be specified.
Selection of monitoring objects
Select monitoring objects in Performance Objects field. The combination of items is shown as
follows.
Item on right side of Monitor
Data field
Item on left side of Monitor
Data field
Item on right side of Object
field
Item on left side of Object
field
NoneDrive Usage Rate (%)NoneLogical Device*
NoneDrive Usage Rate (%)NoneParity Group*
* Only information on internal volumes is displayed. Information about external volumes, FICON DM volumes, and
virtual volumes such as DP-VOLs, Fast Snap V-VOLs, and Snapshot V-VOLs is not displayed.
Hard disk drive access rates
Function
The hard disk drive access rate shows the access rate of each hard disk drive (HDD).
The rate of the file reading Read (Sequential) or the file writing Write (Sequential) processing of
HDD in the sequential access mode is displayed.
The rate of file reading Read (Random) or file writing Write (Random) processing of HDD in the
random access mode is displayed.
Storing period
Long-Range or Short-Range can be specified.
Selection of monitoring objects
Select monitoring objects in Performance Objects field. The combination of items is shown as
follows.
Item on right side of Monitor
Data field
Item on left side of Monitor
Data field
Item on right side of Object
field
Item on left side of Object
field
Read (Sequential)Drive Access Rate (%)NoneLogical Device*
Read (Random)
Write (Sequential)
Write (Random)
* Only information on internal volumes is displayed. Information about external volumes, FICON DM volumes, and
virtual volumes such as DP-VOLs, Fast Snap V-VOLs, and Snapshot V-VOLs is not displayed.
Business Copy usage statistics
Function
The access rate of volume by Business Copy can be displayed the percentage of the processing
of the program to all the processing of the physical drives, for each volume. This value is found
by dividing access time to physical drives by the program by all the access time to physical drives.
Hard disk drive access rates 43
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