HP 273914-B21 Smart Array 6400 Series Controllers for Integrity Servers User G - Page 28
Adding drives
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c. Open ACU and navigate to the controller that contained the RAID ADG volume. ACU displays the missing RAID ADG volume using a different icon to indicate that the volume is unavailable. d. Delete the RAID ADG volume. e. Accept the configuration change, and then close ACU. f. Power down the system. 4. Move the drives. 5. Power up the system. If a 1724 POST message is displayed, drive positions were changed successfully and the configuration was updated. If a 1785 (Not Configured) POST message is displayed: a. Power down the system immediately to prevent data loss. b. Return the drives to their original locations. c. Restore the data from backup, if necessary. 6. Check the new drive configuration by running ORCA or ACU ("Configuring an array" on page 14). Adding drives You can add hard drives to a system at any time, as long as you do not exceed the maximum number of drives that the controller supports. You can then either build a new array from the added drives or use the extra storage capacity to expand the capacity of an existing array. To perform an array capacity expansion, use ACU. If the system is using hot-pluggable drives, you can expand array capacity without shutting down the operating system (that is, with the server online) if ACU is running in the same environment as the normal server applications. (For more information, refer to the HP Array Configuration Utility User Guide.) The expansion process is illustrated in the following figure, in which the original array (containing data) is shown with a dashed border and the newly added drives (containing no data) are shown unshaded. The array controller adds the new drives to the array and redistributes the original logical drives over the enlarged array one logical drive at a time. This process liberates some storage capacity on each of the physical drives in the array. During this procedure, the logical drives each keep the same fault-tolerance method in the enlarged array that they had in the smaller array. Replacing, moving, or adding hard drives 28