Acer altos s300

 3 Cabling and configuration

28

Dual CSM configuration

For this dual CSM configuration, there must be a Concentrator 
Services Module (CSM) installed in both I/O Option Slots.

Dual concentrator services modules

Four host cables are required for this configuration.  These cables must 
not exceed 25 meters in length.

When viewed from the rear there should be a CSM installed both I/O 
slots.

Follow the procedures below to connect the cables (see figure page 
29):

1.

Ensure all power to the enclosure and host systems are switched 
off.

2.

Attach a cable to the top connector of one CSM. 

3.

Attach the other end of this cable to the master/active host system 
(Cluster 1).

4.

Attach a second cable to the bottom connector of the same CSM.

5.

Attach the other end of this cable to the slave/standby host system 
(Cluster 1).

6.

Attach the third cable to the top connector of the second CSM.

7.

Attach the other end of this cable to the second master/active host 
system (Cluster 2).

8.

Attach the fourth cable to the bottom connector of the second 
CSM.

9.

Attach the other end of this cable to the slave/standby host system 
(Cluster 2).