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HP provides several utilities that are used to configure, optimize, and troubleshoot HP Array controllers. These utilities include the following:
13.2.1 Array Diagnostics UtilityHP provides an ADU to help you quickly identify such problems as the following:
The ADU displays a detailed analysis of the system configuration. If the cause of a problem is still not apparent, the ADU can generate a full report that administrators can fax or e-mail to HP customer service for phone support. Beginning with HP SmartStart and Support Software Release 4.10, ADU 1.10 replaced the Drive Array Advanced Diagnostics (DAAD) utility. The DAAD utility is no longer included on the SmartStart CD and has not been updated to support current Smart Array controllers. To run ADU properly, boot the system from the SmartStart CD and select ADU from the System Utilities screen. 13.2.2 Array Configuration UtilityThe HP ACU, shown in Figure 13-1, allows both online local and remote management and configuration of an array through a browser. The ACU simplifies array configuration by providing an interface to the intelligent features of HP Smart Array controllers. The ACU can be started from within the supported operating system or from the HP SmartStart CD. Figure 13-1. Array Configuration Utility interface.ACU features include the following:
ACU can manage all Smart Array controllers from one central location. It enables you to
Note ACU is compatible with Microsoft Internet Explorer 5.0 and later. After you display the ACU, the utility will automatically begin detecting the controllers that are installed on your system. Based on your type of controllers, the following options display:
Note Download the ACU from the ACU home page at http://h18004.www1.hp.com/products/servers/proliantstorage/software-management/acumatrix/index.html. In most cases, all disk drives attached to a controller should be grouped into a single array. This configuration provides the most efficient use of RAID fault tolerance. Using the ACU, you can assign physical drives to an array and designate up to four drives per array controller as online spares. All physical drives within an array should be the same size. If disks of higher capacity are installed within a single array, the extra capacity will not be available. Up to 32 logical drives can be defined with any HP Smart Array controller. Some operating systems support fewer than 32 logical drives. 13.2.2.1 LOCATION OF ARRAY CONFIGURATION DATAWhen the array configuration is saved from ACU, the information is stored on the RAID information sector (RIS) on each hard drive. This allows replacement of computer components without losing data. A set of drives can also be moved from one machine to another without losing data. Note Changes to logical volume structure and RAID level are often data-destructive. 13.2.3 Option ROM Configuration for ArraysORCA executes out of the option ROM that is located on an array controller, including on the RAID LC2 controller. It is designed for users who have minimal configuration requirements. During Power-On Self-Test (POST), any array controller that supports ORCA will provide a prompt to the computer system console as part of the initialization process. If there are no configured logical drives on the array controller, this prompt waits 10 seconds before bypassing ORCA and continuing with POST. If any logical drives are configured, the prompt waits 5 seconds. When a HP RAID controller with ORCA support is installed in the system, the controller-based option ROM prompts during POST for 10 seconds. Press the F8 key to start ORCA. The main features of ORCA include the following:
13.2.3.1 CONFIGURATION METHODSOnly the newest HP Smart Array controller models support ORCA. All other HP Smart Array controllers only support ACU. The HP RAID LC2 controller can be configured with ORCA only. ORCA does not support drive expansion, RAID-level migration, or setting the stripe size. |
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