R4300 chassis – ClearCube R-Series Data Center Products User Manual
Page 59
R-Series Data Center Products User’s Guide
Chassis and Blade Installation • 35
blades (configured by daisy-chaining the spare connections). Figure 23 on page 35
shows these sparing scenarios as examples.
Figure 23 Spare Allocation Examples
For a dual-slot PC blade, verify that the C/Port cable is plugged into the
even-numbered port (for example, for a PC blade installed in chassis slots 3 and 4, the
C/Port cable should be plugged into port 4).
R4300 Chassis
To connect cables to R4300-equipped chassis, do the following:
1. Label, identify, or use different color cables to discriminate between desktop and
network wiring. This color code is recommended, and matches the jumper cables
provided by ClearCube:
•
Control Chain – Green
•
Admin Daisy Chain – Yellow
•
Spare Daisy Chain – Red
2. Daisy-chain the CONTROL OUT port on the top chassis in the rack to the next
lower chassis’ CONTROL IN port using the green daisy-chain cable. Continue
this daisy chain to connect all chassis in the rack.
3. Connect the MANAGEMENT port on at least one of the RMMs to your Ethernet
network hub or switch. For the best reliability, connect redundant RMMs to more
NOTE
Sparing is a switching function of the R4300 chassis. If no spare
blade is connected to the Spare Daisy Chain, or if the Spare
blade is completely powered down, the spare switch action will
succeed but the user will not be connected to a usable blade.
Spare Ratio 1:7
S
P
A
R
E
S
P
A
R
E
S
P
A
R
E
S
P
A
R
E
S
P
A
R
E
S
P
A
R
E
7
6
5
4
3
2
1
7
6
5
4
3
2
1
7
6
5
4
3
2
1
7
6
5
4
3
2
1
7
6
5
4
3
2
1
7
6
5
4
3
2
1
Chassis 1
Chassis 2
Chassis 3
Chassis 4
Chassis 5
Chassis 6
Spare Ratio 1:47
S
P
A
R
E
7
6
5
4
3
2
1
Chassis 1
Chassis 2
Chassis 3
Chassis 4
Chassis 5
Chassis 6
7
6
5
4
3
2
1
8
7
6
5
4
3
2
1
8
7
6
5
4
3
2
1
8
7
6
5
4
3
2
1
8
7
6
5
4
3
2
1
8