Chapter
9.
Migrating
data
to
a
storage
unit
The
DS8000
supports
over
90
operating
systems.
You
can
migrate
data
to
a
storage
unit
from
these
host
and
operating
system
environments.
The
planning
and
methods
of
data
migration
vary
by
environment.
When
you
replace
existing
storage,
you
can
partition
the
storage
so
that
its
virtual
disks
are
similar
in
configuration
to
the
disk
drives
that
they
are
replacing.
New
configurations
must
be
large
enough
to
accommodate
the
existing
data.
Also,
when
data
is
moved,
the
data
must
be
in
a
certain
state,
typically
requiring
that
updates
or
changes
cease
while
the
movement
occurs.
Depending
on
the
amount
of
data
that
you
are
moving
and
your
migrating
method,
data
could
be
unavailable
for
an
extended
period
of
time,
perhaps
several
hours.
Your
system
administrator
must
select
the
data
migration
method
that
is
the
best
compromise
between
efficiency
and
impact
on
the
users
of
your
system.
The
following
list
is
representative
of
the
host
and
operating
system
environments
supported
by
the
DS8000:
v
AIX
v
Linux
for
Intel
v
OS/400
v
System
i
(i5/OS)
v
System
z
(z/OS,
z/OS.e,
z/VM,
VSE/ESA,
UNIX,
and
TPF1)
v
TRU64
UNIX
v
Windows
Server
2000
and
Advanced
Server
with
SP4
v
Windows
Server
2003
v
Windows
Server
2008
v
Windows
XP
with
SP1
Data
migration
is
a
service
offered
through
IBM
Global
Services.
Contact
your
IBM
representative
for
more
information.
How
to
select
a
data
migration
method
Your
system
administrator
selects
the
data
migration
method
that
is
the
best
compromise
between
efficiency
and
impact
on
the
users
of
the
system.
Most
methods
of
data
migration
affect
the
everyday
operation
of
a
computer
system.
When
data
is
moved,
the
data
must
be
in
a
certain
state,
typically
requiring
that
updates
or
changes
cease
while
the
movement
occurs.
Depending
on
the
amount
of
data
that
you
are
moving
and
your
migrating
method,
data
could
be
unavailable
for
an
extended
period
of
time,
perhaps
several
hours.
The
following
factors
might
contribute
to
the
migration
time:
v
Creating
new
logical
volumes
or
file
systems
v
Modifying
configuration
files
v
Receiving
integrity
checks
The
following
items
are
more
than
likely
among
the
topics
considered
by
your
system
administrator
to
determine
the
best
method
to
use
to
migrate
your
data:
©
Copyright
IBM
Corp.
2004,
2008
141
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