Chapter
4.
Operating
the
storage
subsystem
This
chapter
describes
operating
procedures
for
the
DS4200
Express.
To
ensure
optimal
operation
of
your
system,
see
Performing
the
DS4000
Health
Check
process
The
DS4000
Health
Check
process
is
a
sequence
of
suggested
actions
developed
by
IBM
to
help
users
verify
and
maintain
the
optimal
performance
of
their
DS4000
storage
configurations.
The
information
that
you
collect
in
these
steps
also
helps
provide
IBM
Service
with
important
information
needed
for
problem
troubleshooting
during
IBM
Service
calls.
Perform
the
following
Health
Check
tasks
after
the
initial
configuration
of
your
DS4000
Storage
Subsystem,
and
after
all
configuration
sessions.
It
is
also
recommended
that
you
set
a
regular
schedule
of
periodic
Health
Check
evaluations
in
order
to
keep
your
DS4000
code
current
and
to
preserve
optimal
data
access
and
performance.
1.
Monitor
the
Recovery
Guru
in
the
Storage
Manager
client
for
any
obvious
storage
subsystem
errors
or
problem
conditions.
2.
Gather
and
save
the
following
DS4000
storage
subsystem
event
logs
for
review
by
IBM
Service.
These
event
logs
should
be
gathered
periodically
for
regular
Health
Check
monitoring
regardless
of
the
state
of
the
Recovery
Guru.
(You
can
collect
all
these
logs
at
once
and
zip
them
into
a
single
file
by
clicking
Advanced
Troubleshooting
Collect
All
Support
Data
in
the
DS4000
Storage
Manager
Subsystem
Management
window.)
v
DS4000
storage
subsystem
management
event
log
(MEL)
v
Storage
Subsystem
Profile
or
DS4000
Profile
v
Read-Link
Status
(RLS)
data
In
addition,
you
should
also
collect
event
logs
for
the
host
servers
that
have
mapped
logical
drives
from
the
storage
subsystem.
Attention:
Save
these
event
log
files
to
a
server
disk
that
will
remain
accessible
in
the
event
of
a
DS4000
storage
configuration
failure.
Do
not
save
these
event
log
files
only
to
a
LUN
in
the
DS4000
Storage
Subsystem.
3.
Use
the
Storage
Subsystem
Profile
or
DS4000
Profile
to
verify
that
the
following
firmware
levels
are
at
the
latest
versions
supported
for
your
DS4000
storage
subsystem:
v
Controller
firmware
v
ESM
firmware
v
Drive
firmware
If
you
discover
your
firmware
is
not
up-to-date,
upgrade
the
firmware
and
software
to
the
latest
level
appropriate
to
your
DS4000
storage
configuration.
See
for
information
about
where
to
find
the
latest
firmware
and
software.
Attention:
You
must
resolve
Recovery
Guru
errors
or
problems
before
upgrading
firmware.
©
Copyright
IBM
Corp.
2006
79
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