MPE/iX System Utilities Reference Manual (32650-90882)

Chapter 5 93
DISCFREE
Operation
Displaying the allocation summary
To display the allocation summary as a percent of total space on all logical disk devices,
enter:
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.