Trailing-Edge
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PDP-10 Archives
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k20v7d
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unsupported/units.hlp
There are 6 other files named units.hlp in the archive. Click here to see a list.
UNITS is a program which gives status information on disk drives.
The status information shows, among other things, what units are being
used and their logical relationships if any.
The program can be used to rapidly get pertinent information on
mounted structures and available drives. Additionally, if there is status
information on the drive, a comment will be made to that effect at the end
of the line describing that drive.
There are no program commands. In order to use the program, a user
must have WHEEL or OPERATOR capability.
To use simply type
$UNITS or RU UNITS
Sample output is shown below.
Status of Disk Units at 28-Apr-80 17:20:55
Mounted? Type Channel Drive Controller Structure name Logical unit
-------- ---- ------- ----- ---------- -------------- ------------
Yes RP06 0 6 -- SNARK: 0 (1 of 1)
Yes RP04 0 7 -- TSG: 0 (1 of 1)
Yes RP06 1 0 -- PS: 0 (1 of 2)
Yes RP06 1 1 -- NET: 0 (1 of 1)
No RP04 1 2 -- Off-line
No RP06 2 3 -- Off-line
No RP06 2 4 -- Off-line
Yes RP06 2 5 -- PS: 1 (2 of 2)
Mounted: Shows whether the drive is mounted.
In the above example, structure PACKAG:
is online but has not been mounted.
Drive # 4 is available for use.
Type: Drive type.
Channel: The number of the RH20 or UNIBUS adaptor assigned.
Drive: Physical drive unit number.
Structure: If the pack is part of a structure, the alias
is shown. If the pack is not mounted, the VOL-
ID is displayed.
Logical Unit: Shows the logical pack number and the number
of packs per structure. In the example, PS: is
a 2 pack structure. Logical unit 0 is mounted
on Drive # 0. The information here also shows
that this unit is part of a 2 pack structure
(1 of 2). Logical unit 1 (2 of 2) is mounted
on Drive # 5.
[End of UNITS.HLP]