The BIGUTIL record defines underutilized large minidisks.

VMRMUA lists only those minidisks that you could reduce by the following formula and still free up enough space to create a medium-size minidisk (as specified by the MEDUTIL record or the default for MEDUTIL):

(BIGUTIL x .9)% utilization

Thus, if you used the default BIGUTIL value of 80 percent, VMRMUA would list only those minidisks where, by reducing the minidisk's size, you could increase its utilization to 72 percent, and still free up enough space to create a new medium-size minidisk.

BIGUTIL records refine the definition of large minidisks specified by BIGSIZE and BIGUPD records.

BIGUTIL [nn | 80]
  • nn
    Specifies a percentage value indicating how full a large minidisk must be for VMRMUA to select it. To qualify, large minidisks must be nn percent full or less. The variable nn must be a positive integer between 30 and 90. The default value is 80.

Examples

  • To select all large minidisks in the 90th percentile, regardless of the time of the last update, that are less than 70 percent full, change the BIGSIZE and BIGUTIL records to:
    BIGSIZE 90
    * BIGUPD
    BIGUTIL 70
  • To select all large minidisks in the 90th percentile that were last updated 20 or more days ago and are less than 70 percent full, change the BIGSIZE, BIGUPD, and BIGUTIL records to:
    BIGSIZE 90
    BIGUPD 20
    BIGUTIL 70