The
IBM
TotalStorage
Resiliency
Family
is
a
set
of
hardware
and
software
features,
products,
and
services
that
are
available
on
the
IBM
TotalStorage
DS6000
and
DS8000
series
and
IBM
TotalStorage
Enterprise
Storage
Server
®
(ESS)
Models
750
and
800.
The
DS6000
series
has
a
number
of
advanced
Copy
Services
functions
that
are
part
of
the
IBM
TotalStorage
Resiliency
family.
Copy
Services
is
a
collection
of
functions
that
provides
disaster
recovery,
data
migration,
and
data
duplication
functions.
Copy
Services
runs
on
the
DS6000
series
and
supports
open
systems
and
zSeries
environments.
The
following
are
key
features
of
the
IBM
TotalStorage
Resiliency
family:
v
Point-in-time
copy,
which
includes
FlashCopy
v
Remote
mirror
and
copy,
which
includes
the
following
functions:
–
IBM
TotalStorage
Metro
Mirror
–
IBM
TotalStorage
Global
Copy
–
IBM
TotalStorage
Global
Mirror
v
Concurrent
copy,
which
is
available
only
for
zSeries
Disaster
recovery
using
Copy
Services
The
prime
purpose
for
backing
up,
copying,
and
mirroring
data
is
in
preparation
for
a
possible
disaster.
Having
a
disaster
recovery
plan
can
ensure
that
critical
data
is
recoverable
at
the
time
of
a
disaster.
Because
most
disasters
are
unplanned,
your
disaster
recovery
plan
must
provide
a
way
that
allows
you
to
recover
your
applications
quickly,
and
more
importantly,
to
access
your
data.
This
means
that
you
must
be
able
to
restart
your
critical
applications
at
a
backup
site.
Disasters
often
occur
over
a
period
of
time.
This
type
of
unplanned
disaster,
called
a
rolling
disaster,
is
the
most
common.
Other
unplanned
outages
include
fatal
hardware
failures
or
data
center
damage
that
is
caused
by
natural
occurrences,
such
as
earthquakes
or
hurricanes.
Planned
outages
include
system
maintenance
operations,
and
although
they
are
intended,
planned
outages
can
be
just
as
effective
as
unplanned
outages
at
removing
service
from
users.
Most
users
decide
to
use
a
combination
of
remote
mirror
and
copy
and
point-in-time
copy
features
to
form
a
comprehensive
enterprise
solution
for
disaster
recovery.
Disaster
recovery
solutions
include,
but
are
not
limited
to
the
following
functions:
Global
Mirror
Global
Mirror
provides
recoverable
copies
of
your
production
data
at
a
long
distance
remote
site
by
continually
forming
consistent
sets
of
data
with
no
significant
performance
impact.
This
allows
a
quick
restart
at
your
remote
site
in
case
of
a
disaster
at
your
production
site.
Failover
and
failback
operations
A
failover
operation
is
the
process
of
switching
production
to
a
remote
site.
A
failback
operation
is
the
process
of
returning
production
to
its
original
location
after
a
disaster.
These
operations
help
reduce
the
time
that
is
required
to
synchronize
remote
mirror
and
copy
volumes
after
switching
between
sites
during
planned
and
unplanned
outages.
Chapter
1.
Introduction
7
Summary of Contents for System storage DS6000 Series
Page 1: ...IBM TotalStorage DS6000 Introduction and Planning Guide GC26 7679 04...
Page 2: ......
Page 3: ...IBM TotalStorage DS6000 Introduction and Planning Guide GC26 7679 04...
Page 8: ...vi Introduction and Planning Guide...
Page 10: ...viii Introduction and Planning Guide...
Page 12: ...x Introduction and Planning Guide...
Page 14: ...xii Introduction and Planning Guide...
Page 40: ...26 Introduction and Planning Guide...
Page 56: ...42 Introduction and Planning Guide...
Page 66: ...52 Introduction and Planning Guide...
Page 76: ...62 Introduction and Planning Guide...
Page 82: ...Taiwan class A compliance statement VS07171L 68 Introduction and Planning Guide...
Page 114: ...100 Introduction and Planning Guide...
Page 117: ......
Page 118: ...Printed in USA GC26 7679 04...
Page 119: ...Spine information IBM TotalStorage DS6000 Introduction and Planning Guide...
