DANGER

Some laser products contain an embedded Class 3A or Class 3B laser diode. Note the following.

Laser radiation when open. Do not stare into the beam, do not view directly with optical instruments, and avoid direct exposure to the beam.

Class 1 Laser statement

IEC 825-11993 CENELEC EN 60 825

Direct-attached host-side fibre channel cabling

Attention: Install the DS4500 Storage Subsystem and all storage expansion enclosures in the rack cabinet before cabling the configuration.

Host mini hubs

Drive mini hubs

 

 

 

 

 

 

Controller A

 

 

 

 

 

 

1

2

3

 

4

 

4

3

 

2

 

1

b/sb/sG1G2 !

b/sb/sG1G2 !

2G1 b/sGb/s

!

2G1 b/sGb/s

!

2G1 b/sGb/s

!

2G1 b/sGb/s

!

2G1 b/sGb/s

!

b/sb/sG1G2 !

OUT

OUT

 

OUT

 

OUT

 

OUT

 

OUT

 

OUT

OUT

IN

IN

 

IN

 

IN

 

IN

 

IN

 

IN

IN

Mini hub Out ports

Mini hub In ports

Controller B

DS4500 Storage Server

Figure 2. DS4500 Storage Subsystem ports and controllers

1.Connect a host adapter to the Host 1 (top) port on host-side mini hub 1. For redundancy, connect a second host adapter to the Host 1 (top) port on the host-side mini hub 2.

Note: Note: To connect devices to each other, follow the procedure on the other side of this document for installing SFP modules and fibre channel cables.

2.For a second redundant host, connect two host adapters to the Host 2 (bottom) ports on host-side mini hubs 1 and 2.

3.For a third redundant host, connect two host adapters to the Host 3 (bottom) ports on host-side mini hubs 3 and 4.

4.For a fourth redundant host, connect two host adapters to the Host 4 (top) ports on host-side mini hubs 3 and 4.

3

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IBM DS4500 manual Direct-attached host-side fibre channel cabling, Host mini hubs Drive mini hubs Controller a