5. FILES › 5.2 HAR Information Area Files › 5.2.26 ESS Rank Statistics File (HARERS)

5.2.26 ESS Rank Statistics File (HARERS)

$HEDR

The ESS Rank Statistics file quantifies read and write
activity in each rank of an extent pool within an Enterprise
Disk System.  It also stores disk space capacity and
configuration information for each array defined in a rank.
There is one record per rank.
 
The information in the HARERS file is obtained from the SMF

type 74 subtype 8 Enterprise Disk System Statistics record.
The following sections describe the file's organization, list
the data elements maintained, and provide usage hints.

    1 - File Organization
    2 - Data Elements List
    3 - Usage Considerations