
Configuring
the
storage
for
fibre-channel
OpenVMS
hosts
Perform
the
following
steps
to
configure
the
storage
for
fibre-channel
OpenVMS
hosts.
1.
Start
the
operating
system.
2.
Initialize
the
storage
unit
volumes.
On
the
OpenVMS
platform,
you
can
initialize
storage
unit
volumes
as
ODS-2
or
ODS-5
volumes.
You
can
use
the
volumes
to
create
volume
sets.
Volume
sets
are
concatenated
volumes
that
form
a
larger
volume.
See
the
HP
document,
OpenVMS
System
Manager’s
Manual,
Volume
1:
Essentials
.
3.
Mount
the
storage
unit
volumes.
For
OpenVMS
shadow
sets,
the
storage
unit
does
not
support
READL
or
WRITEL
commands.
Therefore,
the
volume
does
not
support
the
shadowing
data
repair
(disk
bad
block
errors)
capability
as
some
other
disks
do.
Add
the
/OVERRIDE=NO_FORCED_ERROR
qualifier
to
the
MOUNT
command
when
you
use
storage
unit
volumes
as
a
shadow
set.
This
qualifier
suppresses
bad
block
handling
by
OpenVMS
shadowing
data
repair.
See
the
HP
document,
Volume
Shadowing
for
OpenVMS
,
for
more
information.
4.
Access
the
storage
unit
volumes.
OpenVMS
fibre-channel
restrictions
The
following
restrictions
are
required
for
the
storage
unit
host
adapter
to
maintain
compatibility
with
the
OpenVMS
host
system.
Compatibility
is
enabled
on
a
storage
unit
adapter
port
after
a
defined
host
establishes
fibre-channel
connectivity
to
one
or
more
storage
unit
volumes.
v
You
must
dedicate
storage
unit
adapter
ports
for
only
the
OpenVMS
type.
It
is
recommended
that
each
OpenVMS
host
adapter
be
in
a
fabric
zone
with
one
or
more
storage
unit
adapter
ports.
v
All
storage
unit
adapter
ports
that
are
in
a
fabric
zone
with
an
OpenVMS
host
adapter
must
have
at
least
one
storage
unit
volume
assigned
to
it.
This
can
be
the
LUN
0
volume.
$
SHOW
DEVICES
DG
Device
Device
Error
Volume
Free
Trans
Mnt
Name
Status
Count
Label
Blocks
Count
Cnt
1$DGA20:
(HANK)
Online
0
1$DGA21:
(HANK)
Online
0
$
$
INITIALIZE/SYSTEM
$1$DGA20
ESS001
$
MOUNT/SYSTEM
$1$DGA20
ESS001
$
DIRECTORY
$1$DGA20:[000000]
$
DISMOUNT
$1$DGA20
Figure
31.
Example
of
what
is
displayed
when
you
use
OpenVMS
storage
configuration
utilities
Chapter
5.
Attaching
to
a
Hewlett-Packard
AlphaServer
OpenVMS
host
51
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