Control Data Corporation CYBER 170 Series Operator's Manual page 55

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Level of
Recovery Function Deadstart
Read and verify the
0
label on each mass
storage device
against that spec i-
fi ed by the EQ
definition for the
device in CMRDECK.
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TABLE 2-5. MASS STORAGE DEVICE RECOVERY
,
Description of Error Type of Device System Response to Error
Device being recovered is Removable.
Error code NR and status U set in
not ready and, therefore, MST; device is left unavailable.
cannot be read.
Nonremovable. Wait and retry. Error message is
flashed on the right screen.
display.
Read error occurred when All. Advance to next track and try to
attempting to read label read. A predetermined number of
(parity error, surface tracks will be searched if error
error, and so forth).
persists. If this number is ex-
ceeded, the device is treated as
if a bad label existed. Refer to
description of Bad Label Error.
Label verification error. N onsystem device. Error code CE and status U set in
The label was read but MST; device is left unavailable.
could not be verified.
For example, label indi-
cates device is first unit
of a three-unit multi-
System device (non-
1. If permanent files do not re-
spindle pack (DK-3), but
removable with system side on the device, it is
units 2 of 3 and/or 3 of residence). initialized automatically
3 are not present. using parameters in existing
label.
2.
If
permanent files reside on
the device, the following mes-
sage appears on the right con-
sole display and deadstart
processing halts.
CONTINUING DESTROYS PFS
RECOVERY OF DEVICE
IMPOSSIBLE.
Bad label. Information N on system device.
Error code LE and status U set in
read was not" recognized MST; device is left unavailable.
as a label sector.
System device (non- Device is initialized auto-
removable with system matically. Any permanent files
residence). that reside on device will be lost.
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Opera tor Action
None.
Check to ensure that all
nonremovable devices are
ready.
None.
Examine E,M display after
deadstart is complete to
determine corrective
action.
None.
Type GO. to proceed. If
this is done, the device
is initialized using
parameters in existing
label (permanent files
will be lost), or redead-
start without system on
this device.'
Device must be initialized
after deadstart if it is
to be used (refer to DSD
command INITIALIZE).
None.