Sun Microsystems 2500 manual Drive Module Cable Labeling, Simplex Configurations

6.Connect one SAS cable between the expansion tray 2 B-side Out port and the B-side In port of expansion tray 2 (FIGURE 2-19).

Drive Module Cable Labeling

Labels for the drive cables identify which controller ports and which expansion connections in an expansion tray you use when you attach cables between a controller and the drive modules on an expansion tray. Cable labels are useful if you need to disconnect cables to service a controller. Attach a label to each end of the cable. Use this design to create labels for drive cables:

■Controller ID (for example, Controller A)

■Expansion tray ID (for example, Tray A)

■Expansion port ID (for example, In or Out)

■Drive module ID

Example Label Abbreviation

In this example, the storage configuration has the following characteristics:

■Drive channel 1

■Controller A, drive channel 1

■Drive module 1

■Expansion Tray A (which is the left drive module), Out port

Using this design, the label includes the following information:

CtA-Dch1, Dm1-Tray_A (left), Out

Simplex Configurations

A simplex configuration is a 2530 Array with a single controller and a single backend channel. By definition, there is a single path SAS connection to the data host, and no redundancy is available. There can be expansion modules on the single backend channel.

Chapter 2 Installing Trays 47