IBM 7212 102, Service Manual, Page: 35 / 92

Step 17
This step ensures that the external SCSI bus cable connection is proper.
Inspect the SCSI bus cable for damage, such as bent pins or damaged wires.
Ensure that the SCSI bus cable is properly connected to both the host system and
to the 7212 Storage Enclosure. Verify that the supported maximum SCSI bus length
and number of devices is not exceeded. Verify that a supported host adapter is
being used (see Table 1 on page 4 and Table 3 on page 6).
Is the SCSI bus cable properly connected to the host system and to the 7212
Storage Enclosure?
NO Replace the cable if it is damaged or too long. Remove any devices
from SCSI bus that are not supported by the configuration. Correct
any adapter problems. Plug the SCSI bus cable into both the host
system and the 7212 Storage Enclosure, then go to Step 18.
YES Go to Step 18.
Step 18
This step ensures that the external terminator connection is proper.
Inspect the terminator for damage and ensure it has the correct part number.
Ensure that the terminator is properly connected to the last device on the SCSI bus.
Note: If the enclosure is configured with a split SCSI bus, the terminators are
mounted inside the enclosure.
Is the terminator properly connected to the last device on the SCSI bus?
NO Replace the terminator if it is damaged or the wrong part number.
Ensure that the terminator is properly connected to the last device
on the SCSI bus, then go to Step 19.
If the host system is an AS/400 or iSeries system , go to Step 21
(AS/400 or iSeries Only).
YES
Go to Step 19.
If the host system is an AS/400 or iSeries system
, go to Step 21
(AS/400 or iSeries Only).
Chapter 2. Maintenance Analysis Procedures
21