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3.5.1 Problem Recovery Procedure 1c
Description:
Customer data has been damaged.
has occurred.
A sector assignment required.
Warning:
Do not attempt to save data from any disk drive in the failing
3514.
To correct this problem, perform the following:
1.
Is this the second time in 1 week that data errors have caused damaged
data on the same disk drive?
No
Yes
Go to step 11
2.
Remove the front cover (see "Front Cover Removal or Installation
Procedure" in topic 4.3).
3.
Find and record the serial number of the failing disk drive.
S/N _ _ _ _ _ _ _
Using the control panel, enter the following sequence in which n is
the slot number for the failing disk drive indicated by the third
character (n) of the URC.
1 2 2 n
PICTURE 72
The following is an example of a disk drive serial number:
+-----------------+
¦ 0 1 9 0 0 6 4 5 ¦ This disk drive should
+-----------------+ be serial number 1900645
1 2 3 4 5 6 7 8
4.
Enter the command to switch off power to the failing disk drive.
Using the control panel, enter the following sequence in which n is
the slot number for the failing disk drive indicated by the third
character (n) of the URC.
6 2 0 n
PICTURE 73
Wait until the command is completed.
5.
Enter the command to switch on power to the failing disk drive.
Using the control panel, enter the following sequence in which n is
the slot number for the failing disk drive indicated by the third
character (n) of the URC.
6 2 9 n
PICTURE 74
Wait until the command is completed.
6.
Enter the command to format the failing disk drive.
a.
Using the control panel, enter the following sequence in which n
is the slot number for the failing disk drive indicated by the
third character (n) of the URC.
6 2 7 n
PICTURE 75
The Data display shows:
+-----------------+
¦ > - - - - - - < ¦
+-----------------+
1 2 3 4 5 6 7 8
b.
Using the control panel, enter the following sequence in which s s
s are the last 3 characters in the serial number of the failing
disk drive indicated by the third character (n) of the URC.
8 2 0 s s s
This command can take up to 40 minutes to complete.
7.
Begin the Exchange Disk Drive command from the control panel:
Note:
The Exchange Disk Drive command will do the reset function.
3514 Service Information
Problem Recovery Procedure 1c
PICTURE 76
¦ Copyright IBM Corp. 1992, 1993
3.5.1 - 1
An unrecoverable data error
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