IBM RS/6000 H50, Installation And Service Manual

Page: 147 / 327

Table 5-1 (Page 3 of 8). Service Request Numbers
SRN FRU List % Problem
2A106 Backplane assembly (See
“SCSI or SSA Backplane” on
page 7-49.) 100 Description: Async code 06 has been
received. This code indicates that multiple
disk drive modules have detected the loss
of one of its their power inputs.
Action:
Ÿ
If the failing devices are SPs,
exchange the backplane.
Ÿ
If the failing devices are not SPs, go
to the service information for those
devices.
2A206 Disk drive module (See “Hot
Swap Disk Drives” on
page 7-10.) 100 Description: A disk drive module has
detected that one of its SSA links has
failed the POSTs.
Action:
1. Use the Link Verification Service Aid
to determine where the SSA link is
broken.
2. Run diagnostics in the system verifica-
tion mode to the two disk drive
modules that are nearest to, and on
each side of, the place where the link
is broken. The diagnostics show
which disk drive module detected the
problem.
2FFFF None – Description: An async code that is not
valid has been received.
Action: Go to “Software and Microcode
Errors” on page 5-2.
300C0 Backplane (See “SCSI or
SSA Backplane” on
page 7-49.) 100 Description: A disk drive module has
detected the loss of one of its power
inputs.
Action:
Ÿ
If the failing device is an SP,
exchange the backplane.
Ÿ
If the failing device is not an SP, go to
the service information for that device.
301C0 Backplane assembly (See
“SCSI or SSA Backplane” on
page 7-49.) 100 Description: Multiple disk drive modules
have detected the loss of one of their
power inputs.
Action:
Ÿ
If the failing devices are SPs,
exchange the backplane.
Ÿ
If the failing devices are not SPs, go
to the service information for those
devices.
Chapter 5. SSA Software and Microcode Errors
5-5