
Procedure 10.9: REPLACE 340-MB MOVING HEAD DISK DRIVE
OVERVIEW
CAUTION:
Damage may result if the next steps are performed before the MHD is thoroughly warm. Start procedure
only after disk is environmentally conditioned.
For disks that were stored in greatly different temperatures than the office ambient, allow 1 hour per 27°F (15°C)
before powering up the MHD.
PROCEDURE
1.
NOTE:
The new disk drive should be provided with an instruction manual and a manufacturer's
defect table listing.
Refer to Section 1.10 of this manual to obtain manufacturer's address and phone number and order any
related documentation that is not provided with the new disk drive.
2.
Refer to
Procedure 10.19
to remove from service each moving head disk (MHD) on the disk file controller
(DFC) that controls the defective MHD.
At the disk to be removed from service, toggle
RST/ROS
switch to
ROS
position. (Procedure
10.19
does this
for disk).
3.
At master control center (MCC) terminal, remove the DFC controlling the affected disk drive from service by
typing and entering:
RMV:DFC=a;
Where:
a
= DFC number of DFC controlling the affected disk drive.
Response:
RMV DFC a COMPLETED
4.
Spin down all drives controlled by DFC a by depressing the
START
button at the particular moving head disk.
Response:
START
LED is flashing at first. As soon as the
START
LED goes off, the disk has been spun
down.
5.
Power down all drives controlled by DFC a by depressing the
OFF
switch at the power switch, located under
the particular drive.
Response:
REPT POWER DOWN MHD a
At the power switch, the
ALM
and
OFF
LEDs light.
Where:
a
= moving head disk member number.
6.
At
DFC a
, press
OFF
switch to power down
DFC a
.
Response:
REPT POWER DOWN DFC a
At the power controller, the
OFF
LED lights.
Where:
a
= DFC number controlling the affected disk drive.
235-105-210
October 1999
Copyright © 1999
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Page 799: ...Figure 11 36 3 1 Cleaning Points 235 105 210 October 1999 Copyright 1999 Page 7 ...
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Page 1008: ...Figure 11 55 1 CTSNS DIP Switch Settings 235 105 210 October 1999 Copyright 1999 Page 2 ...
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Page 1289: ...Figure 15 17 2 AMATPS Data Link 235 105 210 October 1999 Copyright 1999 Page 2 ...
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Page 1360: ...Figure 15 47 2 Typical SCANS III Link Diagram 235 105 210 October 1999 Copyright 1999 Page 2 ...
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Page 1421: ...Table 1 1 O M Checklist 235 105 210 October 1999 Copyright 1999 Page 3 ...