Control Data Corporation CYBER 170 Series Operator's Manual page 56

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1:..4
Level of
Recovery Function Deadstart
1,2,3
Chain removable de- 0, 1,2
vices with consecu-
tive physical unit
numbers (applies only
to 844-21 (DI or DK)
and 844-41/44 (DJ or
DL). This will allow
a multispindle pack
(for example, DK-3)
to be mounted on de-
vices defined in EST
as single spindle de-
vices (for example,
DK-l). Definition
f or devices in EST is
changed to reflect a
multispindle device.
TABLE 2-5. MASS STORAGE DEVICE RECOVERY (Contd)
Description of Error Type of Device System Response to Error Opera tor Action
Label verification error. Removable (no active Error code indicates cause of error Examine E,M display after
The label was read but
direct access files). and status U set in MST; device . deadstart is complete to
could not be verified.
is left unavailable. determine corrective
For example, label indi-
action.
ca tes device is first unit
of a three-unit multi- Nonremovable or re- The following message appears <?n Perform level 0 deadstart
spindle pack (DK-3), but movable with active the right console display and or redefine configuration
units 2 of 3 and/or 3 of direct access files. deadstart processing halts. to match that of system
3 are not present. being recovered.
ERROR ON DEVICE WITH
ACTIVE FILES.
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NOTE
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Active direct access files
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are attached when checkpoint
was taken (level 1,2) or when
deadstart was initiated. It
is assumed that all removable
devices have active direct
access files.
Label verification error. Removable. All units are returned to their Examine the E,M display
Label on remaining spindles original status in EST and device after deadstart is com-
of multispindle pack could with label specifying multispindle
plete to determine cor-
not be verified. pack is left unavailable (U status rective action.
set in MST). The labels on re-
maining devices that were chained
are then checked to determine if
they are valid.