HP StorageWorks Virtualization Services Manager v2 server user guide (5697-0137, September 2009)

• Online Spare Mode—Provides protection against failing or degraded DIMMs. Certain memory
is set aside as spare, and automatic failover to spare memory occurs when the system detects a
degraded DIMM. DIMMs that are likely to receive a fatal/uncorrectable memory error are removed
from operation automatically, resulting in less system downtime.
• Mirrored Memory Mode—Provides protection against uncorrectable memory errors that would
otherwise result in system failure. In this mode, the system maintains two copies of all data. If an
uncorrectable memory error occurs, the system automatically retrieves the good data from the
mirrored copy. The system continues to operate normally without any user intervention. If the system
supports hot-plug memory, the failed memory can be replaced while the system continues to operate.
• RAID Memory Mode—Provides protection levels similar to Mirrored Memory Mode, and it requires
less memory allocation than full redundancy.
Configuring mirrored memory
To configure mirrored memory:
1. Ensure the required DIMMs are installed.
2. Access RBSU by pressing the F9 key during power-up when the prompt is displayed.
3. Select System Options.
4. Select Advanced Memory Protection.
5. Select Mirrored Memory with Advanced ECC Support.
6. Press the Enter key.
7. Press the Esc key to exit the current menu or press the F10 key to exit RBSU.
For more information on mirrored memory, see the white paper on the HP website (http://
h18000.www1.hp.com/products/servers/technology/memoryprotection.html).
Array Configuration Utility
ACU is a browser-based utility with the following features:
• Runs as a local application or remote service
• Supports online array capacity expansion, logical drive extension, assignment of online spares,
and RAID or stripe size migration
• Suggests the optimum configuration for an unconfigured system
• Provides different operating modes, enabling faster configuration or greater control over the con-
figuration options
• Remains available any time that the server is on
• Displays on-screen tips for individual steps of a configuration procedure
For optimum performance, the minimum display settings are 800 × 600 resolution and 256 colors.
Servers running Microsoft® operating systems require Internet Explorer 5.5 (with Service Pack 1) or
later. For Linux servers, refer to the README.TXT file for additional browser and support information.
For more information, refer to the Configuring Arrays on HP Smart Array Controllers Reference Guide
on the HP website (http://www.hp.com).
Option ROM Configuration for Arrays
Before installing an operating system, you can use the ORCA utility to create the first logical drive,
assign RAID levels, and establish online spare configurations.
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