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Chapter 4: Installing Components
7 Return to the Memory configuration menu and set the Sparing Threshold between 1
and
15.
8 Select View and Configure Memory Board x (where x is the memory board that is being
configured).
■ Make sure that the Board Status is Healthy.
9 Set the Reserve Rank for Spare to Enabled.
10 Press F10 to save your changes and exit.
11 Press Y to confirm and the server reboots with the changes.
Memory RAID
If the server contains four memory boards with equal memory capacity, the system can
be configured for Memory RAID. Using memory RAID, one memory board in the server
is held in reserve for memory parity information. This reduces the overall available memory
of the system to 75% of the total installed memory.
Hot removal of memory boards is supported when the server is configured for memory
RAID. The RAID LED on the memory board indicates that the board is in a RAID
configuration.
To configure memory RAID:
1 During server startup, access the System Options Menu. (See “Starting your server”
on page 16.)
2 Press the up and down arrow keys to select BIOS Setup Utility from the System Options
Menu, then press E
NTER. The BIOS Setup utility opens.
3 Press the up and down arrow keys to select Memory, then press ENTER. The Memory
configuration menu opens.
4 Press the up and down arrow keys to select Configure System RAS and Performance, then
press E
NTER. The Configure System RAS and Performance screen opens.
5 Set the Desired Memory Configuration to RAID.
6 Select View Configuration Details.
■ Make sure that Configuration Possible indicates Yes. If it indicates No, you may
need to install more memory to meet the requirements of the selected
configuration.
8510702.book Page 96 Thursday, July 7, 2005 11:21 AM