Technical data

vi
Preparation Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–2
Establishing a Local Connection to the Controller. . . . . . . . . . . . . . . . . . . . . . 2–2
Shutting Down the Subsystem. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–5
Disabling the External Cache Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–5
Restarting the Subsystem. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–7
Replacing Modules in a Single-Controller Configuration. . . . . . . . . . . . . . . . . . . . 2–8
Replacing a Controller and Cache Module in a Single-Controller
Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–9
Replacing a Controller in a Single-Controller Configuration . . . . . . . . . . . . . 2–9
Removing the Controller in a Single-Controller Configuration . . . . . . . . 2–9
Installing the Controller in a Single-Controller Configuration . . . . . . . 2–11
Replacing a Cache Module in a Single-Controller Configuration . . . . . . . . . 2–13
Removing the Cache Module in a Single-Controller Configuration . . . 2–13
Installing the Cache Module in a Single-Controller Configuration . . . . 2–14
Replacing Modules in a Dual-Redundant Controller Configuration. . . . . . . . . . . 2–16
Replacing a Controller and Cache Module in a Dual-Redundant
Controller Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–17
Removing a Controller and Cache Module in a Dual-Redundant
Controller Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–17
Installing a Controller and its Cache Module in a Dual-Redundant
Controller Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–21
Replacing a Controller in a Dual-Redundant Controller Configuration . . . . 2–25
Removing a Controller in a Dual-Redundant Controller
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–25
Installing a Controller in a Dual-Redundant Controller
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–28
Replacing a Cache Module in a Dual-Redundant Controller
Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–31
Removing a Cache Module in a Dual-Redundant Controller
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–31