User`s guide

SET LD
(LD)
Sets the logical-disk subsetting handler.
Format
SET LD condition
Condition
CLEAN
Verifies and corrects, if necessary, all current logical-disk assignments by
checking them against the files on volumes that are accessible. This command
is most useful after you have moved or removed files on a volume, or after you
have removed a volume from a device. If a logical-disk file has moved, the new
location is noted so that you can continue to use that logical disk. If you have
deleted a logical-disk file or the volume containing a logical-disk file is no longer
mounted, the logical-disk assignment is disconnected. In the case of a volume
that you have removed, the disconnect is only temporary. You can reestablish
the assignment when you remount the volume by using the SET LD CLEAN
command again. The commands SQUEEZE and BOOT automatically perform
the SET LD CLEAN operation.
EMPTY
Dismounts all logical-disk assignments.
Format
SET LDx condition
Condition
[NO]WRITE
(Used during disk subsetting) WRITE, the default, defines logical-disk unit x as
being write enabled (read/write access allowed). The value x must be an integer
in the range 0 through 7 unless you have SYSGENed your system for extended-
unit support. WRITE affects both the memory copy and the file of the handler.
If you have extended-unit support, the range for x is 0 through 32
8
. The syntax
for specifying an extended device unit is as follows:
Lxx:
where L is the LD handler and xx is the unit number from 0 to 32
8
.
NOWRITE, used during disk subsetting, defines logical-disk unit x as being write
locked (read-only access allowed). The value x must be an integer in the range 0
RT–11 Command Descriptions 241