Reconfiguring
an
LCU
with
larger
capacity
3390
volumes
Use
the
following
process
to
reconfigure
an
LCU
with
larger
capacity
3390
volumes.
To
retain
your
data,
you
must
offload
the
data
from
the
address
range
of
the
ranks
to
be
reformatted
by
performing
the
following
steps:
1.
Confirm
the
raid
ranks
that
are
associated
with
the
address
range
that
is
being
modified.
2.
Vary
the
address
range
offline.
This
causes
any
associated
parallel
access
volumes
(PAVs)
to
become
unbound.
3.
Issue
Devserv
(DS
QP,
xxxx
,
nnnn
)
using
the
alias
addresses
to
confirm
aliases
are
unbound.
4.
Undefine
the
raid
rank
to
allow
the
configuration
of
larger
capacity
volumes.
5.
Reassociate
the
PAVs.
6.
Vary
the
base
address
range
online.
7.
Issue
Devserv
(DS
QP,
xxxx
,
nnnn
)
using
the
base
addresses
to
confirm
that
the
aliases
are
bound.
8.
Restore
the
data
that
you
offloaded.
Increasing
the
number
of
3390s
formatted
within
an
LSS
Use
this
process
to
increase
the
number
of
3390s
that
are
formatted
within
an
LSS.
To
increase
the
number
of
3390s
that
are
formatted
within
an
LSS,
perform
the
following:
1.
Define
an
input/output
definition
file
(IODF)
using
HCD
with
the
desired
device
addresses.
2.
Remove
the
parallel
access
volumes
(PAVs)
using
the
DS8000
CLI.
3.
Issue
Devserv
(DS
QP,
xxxx
,
nnnn
)
to
the
alias
addresses
to
initiate
an
I/O
operation.
Note:
Messages
″
IOS017I
ALIAS
DEVICE
adev
IS
UNBOUND
″
and
″
IOS001E
xxxx
,
INOPERATIVE
PATH
″
are
issued
from
all
the
alias
addresses.
These
messages
are
normal
and
are
not
cause
for
concern.
4.
Activate
a
new
IODF
by
either
performing
an
IPL
or
by
dynamically
activating
the
new
IODF.
Attention:
Ensure
that
there
is
sufficient
memory
in
the
hardware
storage
area
to
store
the
new
configuration.
5.
Add
new
3390
volumes
to
the
LCU.
6.
Assign
new
PAVs.
Copy
Services
This
topic
provides
overviews
of
the
different
functions
of
Copy
Services,
including
the
benefits
of
using
Copy
Services
for
disaster
recovery.
Copy
Services
overview
Copy
Services
is
a
collection
of
functions
that
provide
disaster
recovery,
data
migration,
and
data
duplication
functions.
Copy
Services
runs
on
the
IBM
TotalStorage
DS8000
storage
unit
and
supports
open
systems
and
zSeries
environments.
104
DS8000
User’s
Guide
Содержание TotalStorage DS8000
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