MPE/iX System Utilities Reference Manual (32650-90908)

Chapter 5

DISCFREE

Operation

DISCFREE "C"

If you omit quotation marks, the default is the specified format for all devices.

DISCFREE displays the following information:

AVAIL TO TRANS SPACE and AVAIL TO PERM SPACE may be negative values. For example, if TRANS

SPACE exceeded MAX TRANS SPACE, AVAIL TO TRANS SPACE would be negative. This could occur if

VOLUTIL were used to change the maximum percentage of MAX TRANS SPACE to a level lower than

currently used for TRANS SPACE. Also, if enough permanent space is used by files brought in during an

UPDATE, PERM SPACE may exceed MAX PERM SPACE, which would make AVAIL TO PERM SPACE a

negative number.

Additional Discussion

For more information on the general topic of disk volumes refer to Volume Management Reference Manual.

For more information on the DSTAT command refer to MPE/iX Commands Reference Manual.

DEVICE SIZE The capacity, in sectors, of the device.

TRANS SPACE The number of sectors currently allocated for transient space. Transient

space is used for objects which are not permanent files, such as stacks, heaps

and system tables.

MAX TRANS

SPACE

An upper limit on the number of sectors that may be allocated for transient

space. TRANS SPACE should not exceed this number although it may if the

percentage of MAX TRANS SPACE space is lowered using VOLUTIL.

FREE SPACE The amount of space on a device currently not used for transient or

permanent space. Space available for use.

AVAIL TO

TRANS SPACE

The amount of space on the device currently available for use as transient

space. The difference between MAX TRANS SPACE and TRANS SPACE. If

this difference exceeds the amount of FREE SPACE, DISCFREE displays the

amount of FREE SPACE.

PERM SPACE The number of sectors currently allocated for permanent space. User and

system files use permanent space.

MAX PERM

SPACE

An upper limit on the number of sectors that may be allocated for permanent

space. PERM SPACE should not exceed this number although it may if the

percentage of MAX PERM SPACE space is lowered using VOLUTIL, or if

enough space is consumed by files brought in during an UPDATE.

AVAIL TO

PERM SPACE

The amount of space on the device currently available for use as permanent

space. The difference between MAX PERM SPACE and PERM SPACE.