Coldstart Of 7152/7155 Disk Controller From Disk Unit - Control Data Corporation CYBER 170 Series Operator's Manual

fff
tt ttt
uuu uuu
eee
xxx xxxt
pppt
rrrt
Represents the controller number to
which the card reader is connected.
Represents the channel number used to
access the deadstart disk equipment.
Represents the physical unit number of
the drive on which the deadstart disk is
mounted.
Represents the controller number to
which the disk unit is connected.
Represents the CMR number.
Represents the deadstart parameters.
Represents. the deadstart level.
The numbers are entered in binary form; each switch
represents one bit in a 12-bit PP instruction word.
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Refer to Setting Word 13 later in this section for detailed
information on word 13 parameters.
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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 disk subsystem is functioning properly, there is no need
to perform another coldstart after initial loading of the
control ware.
Panel Settings for Coldstert of 7152/7155 Disk Controller
from Disk Unit
The specific function of the deadstart program during
coldstart from a disk unit is as follows:
• Identifies the controller and channel number used
to access the disk unit from which the
controlware is to be read. Also specifies the
controller, channel, and unit number of the drive
on which the deadstart disk is mounted.
• Reads the controlware. The function of this
controlware is to load the disk controller.
Processing of the deadstart file 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 illustrated in figure
2-6. This includes the channel number and controller
associated with the card reader and the channel, controller,
and unit number of the disk unit.
The disk unit must be on a channel with no active PP (for
example, channel 0, 12, or 13). Refer to appendix H to
determine the channels without a PP at your site.
Binary Octal tt
1 0000
2 75tt
3 77tt
4 e1vv
5 77tt
6 e3uu
7 74tt
10 71tt
11 7301
12 0000 ttt
13 rpxx
14 0000 ttt
Figure 2-6. Coldstart of 7152/7155 Disk
Controller from Disk Unit
ttttt
eee
Represents the channel number used to
access the deadstart disk equipment.
Represents the controller number to
which the disk unit is connected.
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vvv vvv Represents tbe physical unit number of
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the disk drive from which the coldstart
operation is to be completed.
uuu uuu
Represents the physical unit number of
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the disk drive from which the warmstart
operation is to be completed.
xxx xxxt Represents the CMR number.
Represents the deadstart parameters.
rrr t 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 detailed
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information on word 13. parameters.
In general, you should reset the deadstart panel for a
warmstart immediately after a coldstart if the controlware
has been loaded successfully. . If the disk subsystem is
functioning properly, there is no need to perform another
coldstart after initial loading of the controlware.
LOADING ell MODULE TO DISK
Loading the CTI module to disk enables you to perform
warmstart from disk.
It
also enables the off-line
maintenance system to be run if MSL is available at your
site and is subsequently installed on· disk. Before CTI can
be loaded, the tape controlware must be loaded and
functioning properly. This is accomplished by coldstart as
described earlier in this section.
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t The instructions for the setting of the bits represented by these parameters are given in Setting Word 13.
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ttln many cases, the range of the third octal digit is restricted by the setting of the 2 5 bit.
tttThis word can be set if MSL is installed (refer to the MSL 100 Off-Line Maintenance System Library Reference Manual).
2-6
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