Chapter 3 Connect the Back End
88
Storage Center SC8000 Controller Deployment Guide
Dual Controllers, Two Enclosures, Single Chain
This
illustration
shows
two
SC8000
controllers
cabled
to
two
SAS
enclosures
forming
a
single
chain.
In
a
single
‐
chain
configuration,
use
SAS
ports
2
and
4
to
create
a
redundant
IPC
connection.
When
you
configure
these
ports
using
the
IO
port
wizard,
set
the
port
Purpose
to
Unknown
.
Figure 81. Dual SC8000 Controllers, Two Enclosures, One Chain
Path
Connections
IPC
1 Controller
A:
slot
6,
port
2
→
Controller
B:
slot
6,
port
4.
2 Controller
B:
slot
6,
port
2
→
Controller
A:
slot
6,
port 4.
Chain
1:
A
Side
1 Controller
A:
slot
6,
port
1
→
Enclosure
1:
top
SBB,
port
C.
2 Enclosure
1:
top
SBB,
port
B
→
Enclosure
2:
top
SBB,
port
A.
3 Enclosure
2:
top
SBB,
port
C
→
Controller B:
slot
6,
port
3.
Chain
1:
B
Side
1 Controller
B:
slot
6,
port
1
→
Enclosure
1:
bottom
SBB,
port
C.
2 Enclosure
1:
bottom
SBB,
port
A
→
Enclosure 2:
bottom
SBB,
port
B.
3 Enclosure
2:
bottom
SBB,
port
C
→
Controller
A:
slot
6,
port
3.
Enclosure 1
Enclosure 2
Controller A
Controller B
4
3
2
1
