2-6
Guidelines for Making Changes to Current Installation
Writer: Pamela King Project: SMART-2DH Array Controller Reference Guide Comments: 295469-002
File Name: C-CH02.DOC Last Saved On: 2/27/98 11:25 AM
COMPAQ CONFIDENTIAL - NEED TO KNOW REQUIRED
Moving Arrays
Moving arrays refers to consolidating arrays that exist on more than one
controller onto a single controller. To move an array to another controller, the
conditions listed previously for moving drives, and the following additional
restrictions must be met:
■
All of the drives in the array must be moved at the same time.
■
Positions of drives on the destination controller should not be moved at
the same time.
If any drives are missing or have failed, all data on the moved arrays could be
lost. To protect against data loss, data should be backed up before moving an
array. If you have previously moved an array and plan to restore it to its
original controller, see the following section, “Restoring an Array to Its
Original Controller.”
Figure 2-2 shows an original distributed configuration with two controllers,
each having one array: drive IDs 0, 1, 2, and 3 constitute Array A on
Controller 1 and drive IDs 0, 1, and 2 constitute Array A on Controller 2.
Figure 2-3 shows that after removing the array from Controller 2 and adding it
to Controller 1, Controller 1 has two arrays: drive IDs 0, 1, 2, and 3 constitute
Array A and drive IDs 4, 5, and 6 constitute Array B. Controller 2 has no
arrays.
NOTE
: A spare can be added as part of an array during this process.
However, it will not be restored as a spare until you run Array Configuration
Utility on the newly configured array.
