Data General NOVA ECLIPSE 6234 Service Manual page 85

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Data General Corporation (OGC) has prepared this manual for use by OGC personnel and customers as a guide to the proper Installation, operation, and
maintenance of OGC equipment and software. The drawings and specifications contained herein are the property of OGC and shall neither be reproduced in
whole or in part without OGC's prior written approval nor
be
implied to grant any license to make, use, or sell equipment manufacturecfin accordance herewith.
Table 4-8. Reliability Program Descriptions (page 2 of 4)
SA 501
SA 502
SA 503
SA 504
Reliability test
This test is the same as the previous test except that the
operator is given the option of selecting data patterns and
choosing a constant cylinder, head, sector, or number of
sectors. Any letter response to CYL, HEAD, etc. selects the
random function for that variable. A CR (carriage return)
selects the random function for all variables. All inputs are
checked for range and rejected if out of range.
Incremental disk
This test gives the operator the option address test of
selecting data patterns. Requested data is first written
over the selected disk surface, then data is read from all
sectors. This ensures that the disk surface blocks are
useable and are formatted properly. This test will not
guarantee to read every sector. The test is then repeated
for all ready disks, and PASS is printed to the system
terminal. The sequence is then repeated indefinitely until
manually stopped by the operator.
NOTES:
1.
Should a write error occur on the write pass (e.g.,
address or bad sector error) which terminates the
write transfer, a read error will also occur at
the failing address on the read pass. In such
instances, ignore the read error.
2.
If SWREG
8 =
l(refer to subsection
4.5.8),
the
program is put into read only mode, SAs 501, 502
only. If SA is 501, data must be a constant.
Command string
This program allows the operator to type interpreter in test
loops for troubleshooting. Refer to subsection
4.5.6
for a
detailed operating description.
Format/Verify
NOTE
Format is run serially while verify runs
all controllers in parallel.
This program gives the operator the program option of either
formatting or verifying the disk or both. If the format
operation is requested, the disk is first formatted after
which a format done message is printed. If a verify was
requested, then a 1 5 5 5 5 5 pattern is written to the entire
pack and read back, and PASS is printed. The data pattern is
015-000133
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