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I
Coldstart 7152/7155 Disk Controller from Disk Unit
If controlware
is
loaded on a disk unit,
t
use the following
procedure to perform deadstart.
The following steps
summarize the procedures necessary to perform coldstart
I
I
from a disk unit. Use this as a checklist during coldstart.
1.
Ensure that required mass storage devices have
packs mounted and/or are available.
2.
Mount the deadstart disk unit if using an 844 disk
unit. (refer
to
appendix
D
for
operating
instructions).
3.
Set the deadstart panel for coldstart from a disk
unit (refer to figure 2-6). Set MODE switch to
LOAD.
4.
Press the deadstart switch.
5.
Continue wi th the deadstart process by selecting
CTI options as described under Selecting CTI
Initial Options (*A*) Display later in this section.
.-J
SETTING THE DEADSTART PANEL
The CYBER 170 series deadstart panel (figure 2-1) contains
a 16 by 12 matrix of toggle switches.
Its rows are
numbered from 1 through 20 octal. The CYBER 70 Series
and 6000 Series deadstart panel (figure 2-2) is a 12 by 12
matrix containing rows numbered from 0001 through 0014
octal.
Each row of switches represents a 12-bit PP
instruction word in the deadstart program. Thus, by setting
these switches in a prescribed manner, you create the
program
necessary
to
deadstart.
This
program
is
subsequently
loaded
into
PPO
memory and
executed
whenever the deadstart switch is activated.
211 2 ,0 2 9 28 27 2 6 2 5 24 2 3 2 Z 2' 2 0
I@@@ @@@ @@@ @@@
2@@@ @@@ @@@ @@@
3@@@ @@@ @@@ @@@
4@@@. @@@ @@@ @@@ CEJ/MEJ
:,~:
:!o
5@@@ @@@ @@@ @@@
6@@@ @@@ @@@ @@@
ZO@-
7@@@ @@@ @@@ @@@
10@@@ @@@ @@@ @@@
zl @-
II@.@@ @@@ @@@ @@@
r-S:~ESCT
12@@@ @@@ @@@ @@@
2Z@-
13@@@ @@@ @@@ @@@
14@@@ @@@ @@@ @@@
23@-
15@@@ @@@ @@@ @@@
16@@@ @@@ @@@ @@@
DEAD
@i:lSWEEP
START
LOA'
@
17@@@ @@@
@@(ft>
@@@
20@@@ @@@ @(ft)(ftJ @@@
Figure 2-1. CYBER 170 Series Deadstart Panel
DEAD START PROGRAM
0001
~ ~o ~ ,~~ ~
@'
~ ~ ~ ~
0001
@ @ @
@ @ @
@ @ @
@ @ @
00 . .
@ @ @
@ @ @
@ @ @
@ @ @
00,0'
@ @ @
@
@
~
@ @ @
@ @ @
000.
@ @ @
@ @ @
@ @ @
@ @ @
000.
@ @ @
@:if
'iii
rli ,ftl
@
@
@
@
000.
~
(ft)
~
~
@ @
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oli)
@
@ @ @
0010
@
t41.~
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@
@ @ @
\j) @ @
0011
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,til
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@
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0011
@
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@
@
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00l>@(j1.:jJ
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001'
@ @
i/il
(fj. @
@
(til
@ @
@ @
@
£"$~:SABL[
rC)
:~~:AL ~ :~::AL
'C;,
~~~~'
(j)
ON
~O.II
LOW
lOW
QUMP
0"
CENTRAL
PE.RIPHAL
NODE
DUD
III (IIIO"Y
M'lIIon
STA .. T
CONSTANT
11100'
....
~~
.. M
CMAP
Figure 2-2. CYBER 70/6000 S,eries Deadstart Panel
The function of the deadstart program is as follows:
•
Identifies
the
tape/disk unit, controller, and
channel
number
to
be
used to access
the
deadstart device (specified in words 1 through
10).
•
'Reads the first record from the deadstart file.
The
function of this routine is
to initiate
processing the remainder of
t~e
deadstart file
according
to
the
options
specified
on
the
deadstart panel (word 13).
In the following illustrations of the deadstart panel, the
switch positions indicated by a 1 (switch in up position) or a
o
(switch in down position) are
mandatory settings.
However, the switch positions for fields represented by
alphabetic characters are determined by each installation.
Each of these fields is described in the topics that follow.
I
NOTE
I
Before activating the deadstart switch (on
console or deadstart pane!), ensure that
the maintenance switch (labeled MODE in
figure 2-2) on the deadstart panel is set to
the LOAD position.
The CMAP option, if available, should be
set to CONSTANT MODE.
For CYBER 70 and 6000 series,
the
CEJ/MEJ
key
must
be
turned
fully
counterclockwise
to
enable
CEJ/MEJ.
The key is turned fully clockwise to
disable CEJ/MEJ.
t
Refer to the MSL 100 Off-Line Maintenance System Library Reference ,Manual for information on loading controlware to
I
the disk.
.
60435600 L
2-3
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