Software Input/Output Guide X11 Administration ... - paulmick.com

LD 17
Page 452 of 1050 Alphabetical list of prompts
Prompt Response Comment Pack/Rel
CACH (0) 2-32 Cache
CACH = the number of overlay programs in cache
buffers. Up to 32 overlays can reside in system
memory. This reduces the overlay loading time to
about one second.
553-3001-311 Standard 6.00 June 1999
The first time an overlay is requested by the LD xx
command it is loaded from disk and placed in the
cache memory. If cache area is full, the oldest used
non-priority overlay in cache memory is replaced by
the new overlay.
In the event of data corruption to the overlay or
cache memory, the problem can be corrected by a
forced reload of the overlay from disk by the
command “LD xx D”. The DIST/ENLT cannot be
used to force a reload of the current overlay.
If a SYSLOAD of a new issue of software reduces
the available memory, the number of cache buffers is
reduced. When this occurs an OVL407 message is
output. If this results in too many priority overlays,
the highest number priority overlays are removed.
Background or daily routine overlays are not stored
in cache. If CACH = 0, all overlays are loaded from
disk.
CACH is not prompted for Options 11C, 51C, 61C,
81 and 81C.
CDNO 0-15 Serial Data Interface (SDI) Card number
Number the SDI cards logically with the system.
Keep a paper record of the number and physical
location of each SDI card. Enter 0 if you are not
using CDNO to keep track of SDI ports and cards.
1-10 DCHI Option 11 Card number
1-9 MSDL application Option 11 Card number
basic-18
xpe-15