Panel Settings For Coldstart Of Control- Ler For 667 Or 669 Tape Unit; Panel Settings For Coldstart Of 7021/7152 Tape Controller From Card Reader - Control Data Corporation CYBER 170 Series Operator's Manual

By default, the CEJ/MEJ option is logically enabled. If
there is no CEJ/MEJ switch or if the CEJ/MEJ switch is
physically set to the disable position on the deadstart
panel, and you do not logically disable it via the *H*
display (refer to Operator Intervention
a
Option later in
this section), the following error message display results
after the final CR is pressed for the CTI options.
CEJ/MEJ OPTION NOT ENABLED
FOR CEJ/MEJ USAGE, ENABLE SWITCH
ON DEADSTART PANEL AND DEADSTART
(CR) FOR NON CEJ/MEJ USAGE
If you wish to use the CEJ/MEJ option, enable the switch
on the deadstart panel and deadstart again. Press CR if
you do not want to use th~ CJ!:J/MEJ option.
This display appears also if there is a hardware failure of
the CEJ/MEJ switch and it has not been logically disabled.
I
Panel settings for coldstart of tape and disk controllers are
described in the next two subsections. A later subsection
describes the panel settings for word 13 of'the deadstart
panel.
PANEL SETIINGS FOR COLDSTART OF CONTROLLER
FOR 667 OR 669 TAPE UNIT
I
Panel Settings for Coldstart of 7021/7152 Tape Controller
from Card Reader
I
The specific function of the deadstart program during
coldstart from a card reader is as follows:
• Identifies the controller and channel number used
to access the card reader from which the
controlware is to be read. Also specifies the
controller, channel, and unit number of the tape
unit on which the deadstart tape is mounted.
• Reads the controlware card deck. The function of
this deck is to load the tape controller.
Processing of the deadstart tape according to the
options specified on the deadstart panel is then
initiated.
The equipment necessary for the devices used during
coldstart,is identified by setting the switches shown .in the
unshaded area of the deadstart panel illustra ted in figure.
2-3. This includes the channel number and controller
associated with the card reader and the channel, controller,
and unit number of the tape unit.
The tape unit on which the deadstart tape is mounted and
the card reader must be on different channels. The card
reader must be on a channel without a PP (for example,
channel 12 or 13). Refer to appendix H to determine the
channels without a PP at your site.
1
2
3
4
5
6
7
10
11
12
13
14
Binary
Octalt
'75cc
77cc
fOOO
0000
77cc
1400
74cc
71cc
7664
Oatt
rpxx
e2uu
Figure 2-3. Colds tart of 7021/7152 Tape
Controller from Card Reader
I
cc ccc Represents the channel number used to
access the card reader from which the,
controlware
is
to be read.
fff Represents the controller number to
which the card reader is connected.
tt ttt Represents the channel number used to
access the deadstart tape equipment.
u uuu
eee
xxx xxxtt
ppptt
Represents the physical unit number of
the tape unit' on which the deadstart tape
is mounted.
Represents the controller number to
which the tape unit is connected.
Represents the CMR number.
Represents the deadstart parameters.
rrr
n
Represents the deadstart level.
The numbers are entered in binary form; each switch
represents one bit in a 12-bit PP instruction word.
Refer to Setting Word 13 later in this section for detailedl
information on word 13 parameters.
In general, you should reset the deadstart panel for a
warmstart immediately after a coldstart from a card
reader if the controlware has been loaded successfully. If
, the tape subsystem is functioning properly, there is no need
to perform another coldstart after initial loading of the
controlware.
,I
t
In
many cases, the range of the third octal digit
is
restricted by the setting of the 2 5 (and sometimes 24) bit.
tt The instruction for setting the bits represented by these parameters are given in Setting Word 13. .
2-4
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