Compaq 3200 manual Restoring an Array to Its Original Controller

2-10Guidelines for Making Changes to Current Installation

Restoring an Array to Its Original

Controller

If you moved an array from one controller to another, you can restore it to its original controller. Figures 2-3 through 2-5 show the consecutive configurations required to restore an array to its original controller (or to a replaced controller in the event of controller failure). Figure 2-4 shows the consolidated configuration that includes Array A with drive IDs 0 through 3 and Array B with drive IDs 4 and 5. Moving Array B back to Controller 2 creates an interim four-array state, with Array B on Controller 1 and Array A on Controller 2 appearing as failed. Running the Array Configuration Utility removes the failed arrays and restores the original two-array configuration.

Controller 1

Controller 2

ID5	y	Array B	ID5
ID4	x		ID4
ID3	d		ID3
ID2	c		ID2
ID1	b	Array A	ID1
ID0	a		ID0
Figure 2-3.	Arrays A and B both attached to Controller 1

Controller 1

Controller 2

ID5		Array B	ID5
ID4		Failed	ID4
ID3	d		ID3
ID2	c		ID2
ID1	b	Array A	ID1
ID0	a		ID0
Figure 2-4.	Interim four-array state

y x

Array B

Array A Failed