One
adapter
in
each
of
two
host
systems
connected
to
one
2104
Model
DS4
Figure
51
shows
one
adapter
in
each
of
two
host
systems
connected
to
one
2104
Model
DS4
(single-bus
mode).
1
SCSI
interface
card.
2
For
HACMP
configurations
in
standby
or
mutual
takeover
mode:
v
PCI
Dual-Channel
Ultra3
SCSI
Adapter
(type
number
4-Y,
feature
code
6203)
Note:
The
two
adapters
must
be
in
separate
host
systems.
v
PCI-X
Dual
Channel
Ultra320
SCSI
adapter
(type
number
5702,
feature
code
5712)
For
non-HACMP
configurations:
v
PCI
Dual-Channel
Ultra3
SCSI
Adapter
(type
number
4-Y,
feature
code
6203)
v
Ultra2
SCSI
Integrated
Port
v
PCI-X
Dual
Channel
Ultra320
SCSI
adapter
(type
number
5702,
feature
code
5712)
Note:
In
non-HACMP
configurations,
connections
can
be
made
to
two
separate
host
systems
or
to
the
same
host
system.
Connection
can
be
to
an
Ultra2
SCSI
integrated
port
or
to
an
Ultra2
SCSI
connector
on
the
SCSI
adapters
listed.
Access
to
the
disks
in
the
2104
Model
DS4
cannot
be
shared.
Important:
This
2104
Model
DS4
configuration
is
not
supported
on
the
Linux
operating
system.
Notes:
1.
The
SCSI
address
of
the
adapter
that
is
connected
to
the
2104
Model
DS4
must
be
different
from
the
addresses
of
the
installed
disk
drive
modules.
When
a
second
adapter
is
connected
to
a
2104
Model
DS4,
the
SCSI
address
of
that
adapter
must
be
different
from
the
address
of
the
first
adapter
and
the
addresses
of
the
installed
disk
drive
modules.
2.
In
each
2104
Model
DS4,
slots
6
and
7
(SCSI
addresses
5
and
6)
must
contain
dummy
disk
drive
modules.
3.
Each
2104
Model
DS4
can
contain
no
more
than
12
disk
drive
modules.
2104 Subsystem
Maximum of 12
disk drive modules
1
1
2
2
Host System
Host System
Figure
51.
One
adapter
in
each
of
two
host
systems
connected
to
one
2104
Model
DS4
(single-bus
mode)
44
Expandable
Storage
Plus
2104
Model
DS4
Installation
Guide
Summary of Contents for 2104 Model DS4
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