IBM Marine Radio DS4700 Manuale Utente

Electrical requirements . . . . . . . . . . . . . . . . . . . . . 26

Power and site wiring requirements for models with ac power supply and

fan units

. . . . . . . . . . . . . . . . . . . . . . . . 27

Power and site wiring requirements for models with dc power supply and

fan units

. . . . . . . . . . . . . . . . . . . . . . . . 28

Heat output, airflow, and cooling

. . . . . . . . . . . . . . . . . 28

Chapter 2. Installing the storage subsystem . . . . . . . . . . . . . 31
Installation overview . . . . . . . . . . . . . . . . . . . . . . . 31
Handling static-sensitive devices . . . . . . . . . . . . . . . . . . 33
Preparing for installation

. . . . . . . . . . . . . . . . . . . . . 34

Tools and hardware required . . . . . . . . . . . . . . . . . . . 35
Preparing the site . . . . . . . . . . . . . . . . . . . . . . . 35
Preparing the rack cabinet. . . . . . . . . . . . . . . . . . . . 36

Installing the support rails . . . . . . . . . . . . . . . . . . . . . 36
Installing the DS4700 Express . . . . . . . . . . . . . . . . . . . 40

Removing the CRUs . . . . . . . . . . . . . . . . . . . . . . 40

Removing a controller . . . . . . . . . . . . . . . . . . . . 41
Removing an ac power supply and fan unit

. . . . . . . . . . . . 42

Removing a dc power supply and fan unit . . . . . . . . . . . . . 43
Removing an E-DDM

. . . . . . . . . . . . . . . . . . . . 45

Installing the DS4700 Express into a rack on the support rails

. . . . . . 46

Replacing the components

. . . . . . . . . . . . . . . . . . . 48

Replacing a controller . . . . . . . . . . . . . . . . . . . . 48
Replacing an ac power supply and fan unit

. . . . . . . . . . . . 49

Replacing a dc power supply and fan unit . . . . . . . . . . . . . 50
Replacing an E-DDM

. . . . . . . . . . . . . . . . . . . . 52

Installing a Telco bezel . . . . . . . . . . . . . . . . . . . . 53

Chapter 3. Cabling the storage subsystem. . . . . . . . . . . . . . 55
Enclosure ID settings

. . . . . . . . . . . . . . . . . . . . . . 55

Fibre-channel loop and ID settings. . . . . . . . . . . . . . . . . . 56
Working with SFPs and fiber-optic cables . . . . . . . . . . . . . . . 56

Handling fibre-optic cables

. . . . . . . . . . . . . . . . . . . 57

Installing SFP modules . . . . . . . . . . . . . . . . . . . . . 58
Removing SFP modules

. . . . . . . . . . . . . . . . . . . . 60

Using LC-LC fibre-channel cables . . . . . . . . . . . . . . . . . 61

Connecting an LC-LC cable to an SFP module . . . . . . . . . . . 62
Removing an LC-LC fibre-channel cable

. . . . . . . . . . . . . 64

Using LC-SC fibre-channel cable adapters . . . . . . . . . . . . . . 64

Connecting an LC-SC cable adapter to a device

. . . . . . . . . . 65

Removing an LC-LC cable from an LC-SC cable adapter . . . . . . . 66

Connecting storage expansion enclosures to the DS4700 Express . . . . . . 68

Redundant drive channel pair

. . . . . . . . . . . . . . . . . . 68

Overview of steps to connect storage expansion enclosures to a storage

subsystem. . . . . . . . . . . . . . . . . . . . . . . . . 69

DS4700 Express Storage Subsystem drive cabling topologies

. . . . . . 70

One DS4700 Express and one storage expansion enclosure . . . . . . 72
One DS4700 Express and two storage expansion enclosures. . . . . . 72
One DS4700 Express and three storage expansion enclosures . . . . . 74
One DS4700 Express and four storage expansion enclosures

. . . . . 74

One DS4700 Express and up to six storage expansion enclosures . . . . 74
One DS4700 Express and two or more storage expansion enclosures in a

mixed configuration

. . . . . . . . . . . . . . . . . . . . 76

DS4700 Express Storage Subsystem and supported storage expansion

enclosure drive cabling schemes

. . . . . . . . . . . . . . . . 77

IBM System Storage DS4700 Express Storage Subsystem: Installation, User’s and Maintenance Guide