Table
5.
Firmware
Error
Codes.
(continued)
Error
Code
Description
Action/
Possible
Failing
FRU
21A0
0001
SCSI
DASD
-
test
unit
ready
failed
-
hardware
error
Note:
1.
Before
replacing
any
system
components:
a.
Ensure
that
the
controller
and
each
device
on
the
SCSI
bus
is
assigned
a
unique
SCSI
ID.
b.
Ensure
SCSI
bus
is
properly
terminated.
c.
Ensure
SCSI
signal
and
power
cables
are
securely
connected
and
not
damaged.
2.
The
location
code
information
is
required
to
identify
the
ID
of
SCSI
device
failures
as
well
as
to
indicate
the
location
of
the
controller
to
which
the
device
is
attached.
Check
the
system
error
logs
to
determine
the
location
code
information
associated
with
the
error
code.
a.
Replace
the
SCSI
device.
b.
Replace
the
SCSI
cable.
c.
Replace
the
SCSI
controller.
21A0
0002
SCSI
DASD
-
test
unit
ready
failed
-
sense
data
available
Before
replacing
any
system
components,
refer
to
the
notes
in
error
code
21A0
0001.
1.
Replace
the
media
(removable
media
devices).
2.
Replace
the
SCSI
device.
21A0
0003
SCSI
DASD
-
send
diagnostic
failed
-
sense
data
available
Before
replacing
any
system
components,
refer
to
the
notes
in
error
code
21A0
0001.
Replace
the
SCSI
device.
21A0
0004
SCSI
DASD
-
send
diagnostic
failed
-
DevOfl
cmd
Before
replacing
any
system
components,
refer
to
the
notes
in
error
code
21A0
0001.
Replace
the
SCSI
device.
21E0
0001
SCSI
tape
-
test
unit
ready
failed
-
hardware
error
Before
replacing
any
system
components,
refer
to
the
notes
in
error
code
21A0
0001.
1.
Replace
the
SCSI
device.
2.
Replace
the
SCSI
cable.
3.
Replace
the
SCSI
controller.
Chapter
5.
Error
Code
to
FRU
Index
201
Summary of Contents for 6H0
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Page 28: ...R CEC Drawer 5 EIA Units Primary I O Drawer 5 EIA Units 8 Service Guide ...
Page 29: ...CEC Drawer Front View 1 1 Power On LED Chapter 1 Reference Information 9 ...
Page 33: ...5 Fan 4 U0 1 F4 6 Fan 3 U0 1 F3 Chapter 1 Reference Information 13 ...
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