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Appendix.
Troubleshooting
The
topics
in
this
section
provide
troubleshooting
information
related
to
your
DS8000.
Topics
covered
include
analyzing,
verifying,
understanding,
managing,
and
handling
various
problems.
Analyzing
generic
alert
traps
The
storage
unit
generates
generic
alert
traps.
The
traps
are
sent
by
an
SNMP
agent
to
report
asynchronous
events.
Generic
trap
alert
identifiers
coldStart
(Generic
0)
Issued
whenever
the
SNMP
agent
is
reinitializing.
Configuration
data
has
changed.
warmStart
(Generic
1)
Issued
whenever
the
SNMP
agent
is
reinitializing.
Configuration
data
might
change.
authenticationFailure
(Generic
4)
Issued
whenever
an
SNMP
message
was
received
but
could
not
be
authenticated.
Analyzing
service
information
messages
(SIMs)
for
S/390
and
zSeries
systems
Service
information
messages
(SIMs)
are
generated
by
a
storage
unit
for
S/390
and
zSeries
hosts.
Before
installation,
you
can
use
the
customization
work
sheets
to
record
the
following
service
information:
the
SIM
severity
level
and
how
often
the
stroage
unit
sends
the
SIMs
(0-9
times)
to
the
console.
During
installation,
either
you
or
the
IBM
service
sales
representative
must
enter
this
information
into
the
system.
SIM
message
types
The
following
SIM
message
types
are
generated
by
the
storage
unit.
Direct
access
storage
device
(DASD)
SIM
Tracks
DDM
failures
and
problems.
Media
SIM
Tracks
data
check
problems
on
the
media.
Storage
unit
SIM
Tracks
storage
unit,
power
control,
and
other
hardware
problems.
SIM
severity
levels
1
acute
An
irrecoverable
error
with
possible
loss
of
data.
This
severity
level
only
applies
to
DASD
SIMs.
2
serious
An
irrecoverable
error
or
a
data
check
with
loss
of
access
to
data.
©
Copyright
IBM
Corp.
2004,
2005
153
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