HP A9890A HP A9890A Smart Array 6402 Controller Installation Guide - Page 23

Smart Array 6402 Controller Linux Installation Using ORCA Using ORCA This section describes how to use ORCA, a simple ROM-based configuration utility that runs on all operating systems. ORCA Limitations For the most efficient use of drive space, do not mix drives of different capacities within the same array. The configuration utility treats all physical drives in an array as if they have the same capacity as the smallest drive in the array. The excess capacity of any larger drives is wasted because it is unavailable for data storage. The probability that an array will experience a drive failure increases with the number of physical drives in the array. If you configure a logical drive with RAID 5, keep the probability of failure low by using no more than 14 physical drives in the array. Configuring Your Logical Boot Drive When using an HP Smart Array controller as your boot controller, use the Option Rom Configuration for Arrays (ORCA) utility to configure your logical boot drive. The ORCA utility can only be accessed when the system is booting. Step 1. Press the F8 key when the prompt appears on the screen during boot to start ORCA and configure your logical boot drive. Step 2. Select the Create Logical Drive Step 3. Use the Arrow keys, Spacebar, and Tab key to navigate around the screen and set up the logical drive, including an online spare drive if one is required. NOTE You cannot use ORCA to configure one spare drive to be shared among several arrays. Step 4. Press the Enter key to accept the settings Step 5. Press the F8 key to confirm the settings and save the new configuration. After several seconds, the Configuration Saved screen is displayed. NOTE Newly created logical drives are invisible to the operating system. To make the new logical drives available for data storage, format them using the instructions given in the operating system documentation. Chapter 2 23