Mass Storage Controller Configuration - Intel P4000IP Series Service Manual

BIOS Setup Utilities
Comments: Available modes depend on the current memory population. Modes which are not
listed as "possible" should not be available as choices. If the only valid choice is "Maximum
Performance", then this option should be grayed out and unavailable.
Maximum Performance – (default) no RAS, but best memory utilization since full
amount of memory is available, operating in Independent Channel Mode.
Mirroring - most reliability by using half of memory as a mirror image, can survive an
Uncorrectable ECC Error.
Rank Sparing – offers reliability by reserving spare ranks to replace failing ranks
which are generating excessive Correctable ECC Errors.
Lockstep – allows SDDC capability with x8 DIMMs installed. No memory size impact,
but does have a performance and power penalty.
NOTE
Since only RAS Modes which are listed as "possible" are available for selection, it is not possible to
select a RAS Mode without first installing an appropriate DIMM configuration.
5. NUMA Optimized
Option Values: Enabled
Help Text:
If enabled, BIOS includes ACPI tables that are required for NUMA-aware Operating
Systems.
Comments: This option is only present for boards which have two or more processor
sockets. When a multi-socket board has only a single processor installed, this option is
grayed out and set as Disabled.
When enabled, the SRAT and SLIT ACPI tables are provided that show the locality of
systems resources, especially memory, which allows a "NUMA Aware" OS to optimize which
processor threads are used by processes which can benefit by having the best access to
those resources.

Mass Storage Controller Configuration

The Mass Storage Configuration screen allows the user to configure the Mass Storage controllers
that are integrated into the server board on which the BIOS is executing. This includes only
onboard Mass Storage controllers. Mass Storage controllers on add-in cards are not included in this
screen, nor are other storage mechanisms such as USB-attached storage devices or Network
Attached Storage.
There are two types of onboard controller configured in this screen, the AHCI SATA controller and
the Storage Control Unit (SCU) with SATA or SAS drive support and RAID support. There are
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Disabled
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Intel Server System P4000IP and Intel
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Workstation System P4000CR Service Guide