Compaq ProLiant 1000 User Guide: Online Storage Controller Recovery Option - Page 25

ProLiant Storage System to provide consistent recovery after complete power

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2-7 ProLiant Storage 1 System 2 /F or /U Active Standby Device Driver Figure 2-2. Single Controller Pair Configuration -- Logical Diagram The single-channel configuration provides the foundation for understanding how to configure OSCRO. Note that in the example shown in Figure 2-2, the active controller is connected to the primary port on the ProLiant Storage System. The active controller should always be connected to the primary port of the ProLiant Storage System to provide consistent recovery after complete power loss to the server and the storage system. When the power is cycled on the ProLiant Storage System, the Recovery Server Switch inside is reset and the primary port becomes the active port by default. By aligning the primary port of the ProLiant Storage System with the active controller of the controller pair, the system recovers from a power failure using the power-up defaults. Online Storage Controller Recovery Option User Guide

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2-7
Online Storage Controller Recovery Option User Guide
ProLiant
Storage
System
/F or /U
1
2
Device
Drive
r
Standby
Active
Figure 2-2.
Single Controller Pair Configuration -- Logical Diagram
The single-channel configuration provides the foundation for understanding
how to configure OSCRO. Note that in the example shown in Figure 2-2, the
active controller is connected to the primary port on the ProLiant Storage
System.
The active controller should always be connected to the primary port of the
ProLiant Storage System to provide consistent recovery after complete power
loss to the server and the storage system. When the power is cycled on the
ProLiant Storage System, the Recovery Server Switch inside is reset and the
primary port becomes the active port by default. By aligning the primary port of
the ProLiant Storage System with the active controller of the controller pair, the
system recovers from a power failure using the power-up defaults.