SGI IS2224 Manual de usuario descargar pdf (Pagina 24)

Connecting the Storage Enclosure to the Host . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-2 620J Storage Enclosure Installation and Overview Guide

Things to Know – Connecting the Storage

Enclosure to a Host

You can connect a storage enclosure to a new host or to an existing host. Before you

connect a storage enclosure to an existing host, you must answer these questions:

• How many storage enclosures does this host support? This information is located in

the storage array profile for your storage array.

• What is the cabling configuration for the storage array? See “Things to Know – Basic

Cabling Configurations“ on page 3-5.

• Is the storage array receiving power? No, see “Steps to Connect – Storage

Enclosures with the Power Off“ on page 3-3.

• Is the storage array transferring I/O data? Yes, see “Steps to Connect – Storage

Enclosure with the Power On“ on page 3-4.

Things to Know – Connecting the Storage

Enclosure to Another Storage Enclosure

The ESM in each storage enclosure has three SAS connectors. Below two of the

connectors is an arrow pointing up. Below the expansion connector on the far right is

an arrow pointing down. When connecting from an ESM in one storage enclosure to an

ESM in another storage enclosure, make sure that you use connectors with arrows

pointing in opposite directions.

ESMs are connected to ESMs in other storage enclosures (or most hosts) via cables with

a standard 4-lane SFF8088 connector on each end. Ease-of-use implies that the cables

have a “universal key.” Otherwise, the two ends of the cables might need to be switched

with each other so that they match with the proper ESM connectors. High-quality,

compatible cables with universal keys from LSI are available from your system supplier.

Table 3–1 Cable Part Numbers and Lengths

LSI Part Number Cable Length

CBL - SFF8088SAS-10M 1.0 meter

CBL - SFF8088SAS-20M 2.0 meter

1 2 ... 19 20 21 22 23 24 25 26 27 28 29 ... 45 46

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SGI IS2224 Manual de usuario Pagina 24