Intel® Server System R2000WF Product Family Technical Product Specification
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7.2.1
Intel® Rapid Storage Technology Enterprise (Intel® RSTe) 5.0
Intel® Rapid Storage Technology enterprise (Intel® RSTe) offers several options for RAID to meet the needs of
the end user. AHCI support provides higher performance and alleviates disk bottlenecks by taking advantage
of the independent DMA engines that each SATA port offers in the chipset. Supported RAID levels include 0,
1, 5, and 10.
RAID 0
– Uses striping to provide high data throughput, especially for large files in an environment
that does not require fault tolerance.
RAID 1
– Uses mirroring so that data written to one disk drive simultaneously writes to another disk
drive. This is good for small databases or other applications that require small capacity but complete
data redundancy.
RAID 5
– Uses disk striping and parity data across all drives (distributed parity) to provide high data
throughput, especially for small random access.
RAID 10
– A combination of RAID 0 and RAID 1, consists of striped data across mirrored spans. It
provides high data throughput and complete data redundancy but uses a larger number of spans.
By using Intel RSTe, there is no loss of PCI resources (request/grant pair) or add-in card slot. Intel RSTe
functionality requires the following:
The embedded RAID option must be enabled in BIOS setup.
Intel RSTe option must be selected in BIOS setup.
Intel RSTe drivers must be loaded for the installed operating system.
At least two SATA drives needed to support RAID levels 0 or 1.
At least three SATA drives needed to support RAID level 5.
At least four SATA drives needed to support RAID level 10.
NVMe SSDs and SATA drives must not be mixed within a single RAID volume
With Intel RSTe software RAID enabled, the following features are made available:
A boot-time, pre-operating-system environment, text-mode user interface that allows the user to
manage the RAID configuration on the system. Its feature set is kept simple to keep size to a
minimum, but allows the user to create and delete RAID volumes and select recovery options when
problems occur. The user interface can be accessed by pressing
<CTRL-I>
during system POST.
Boot support when using a RAID volume as a boot disk. It does this by providing Int13 services when
a RAID volume needs to be accessed by MS-DOS applications (such as NT loader (NTLDR)) and by
exporting the RAID volumes to the system BIOS for selection in the boot order.
At each boot-up, a status of the RAID volumes provided to the user.
7.2.2
Intel® Embedded Server RAID Technology 2 (ESRT2) 1.60 for SATA
Intel® Embedded Server RAID Technology 2 (powered by LSI*) is a driver-based RAID solution for SATA that
is compatible with previous generation Intel® server RAID solutions. Intel Embedded Server RAID Technology
2 provides RAID levels 0, 1, and 10, with an optional RAID 5 capability depending on whether a RAID upgrade
key is installed.
Note
: The embedded Intel Embedded Server RAID Technology 2 option has no RAID support for PCIe*
NVMe* SSDs.
Intel Embedded Server RAID Technology 2 is based on LSI* MegaRAID software stack and utilizes the system
memory and CPU.
Supported RAID levels include:
RAID 0:
Uses striping to provide high data throughput, especially for large files in an environment that
does not require fault tolerance.
Summary of Contents for R2000WF series
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