Intel Application Accelerator RAID Edition

H

Hank

I have D865PERL MB with two SATA harddrives. I don't want to RAID them.
Is there any performance improvement if I activate RAID option in Bios, load
Intel Raid edition accelerator and run two drives separately, not-Raid?

Or should I run without Raid option activated and without Intel application
Accelerator? Is there any difference?
Thanks
 
P

Pete

Hank said:
I have D865PERL MB with two SATA harddrives. I don't want to RAID
them. Is there any performance improvement if I activate RAID option
in Bios, load Intel Raid edition accelerator and run two drives
separately, not-Raid?

Or should I run without Raid option activated and without Intel
application Accelerator? Is there any difference?
Thanks

I the chipset supported? From Intel:
http://support.intel.com/support/chipsets/iaa/sb/cs-009312.htm

Note: The Intel Application Accelerator is not compatible with the Intel®
875P, 865G/P/PE, 852/855 GM/GME, 855MP, 848P, 815EM chipset, the Intel® 440
chipset family, or any earlier Intel chipsets. The Intel Application
Accelerator is also not compatible with any Intel® 900 series Express
Chipset families.
 
P

Peter

I have D865PERL MB with two SATA harddrives. I don't want to RAID
I the chipset supported? From Intel:
http://support.intel.com/support/chipsets/iaa/sb/cs-009312.htm

Note: The Intel Application Accelerator is not compatible with the Intel®
875P, 865G/P/PE, 852/855 GM/GME, 855MP, 848P, 815EM chipset, the Intel®
440
chipset family, or any earlier Intel chipsets. The Intel Application
Accelerator is also not compatible with any Intel® 900 series Express
Chipset families.

From D865PERL manual:
---------------------------
1.7.3.3 Intel® RAID Technology
Boards equipped with the ICH5-R support RAID (Redundant Array of Independent
Drives) level 0
on the Serial ATA ports. RAID 0 provides the ability to support striping.
Two physical drives, of
identical size, can be teamed together to create one logical drive. As data
is written or retrieved
from the logical drive, both drives operate in parallel, thus increasing the
throughput.
? NOTE
The ICH5-R provides support for RAID 0 and RAID boot in Windows XP only.
1.7.3.4 RAID Boot Configuration Overview
A RAID array can be created by using the existing Serial ATA Ports,
correctly configuring the
BIOS, and installing drivers. The following steps are required to
successfully establish a RAID
configuration.
1. Enable RAID Support in BIOS.
2. Create a RAID array using the Intel® Application Accelerator (IAA)
utility.
3. Install the IAA 3.0 RAID driver.
4. Format the RAID array.
5. Install the IAA 3.0 Companion Utility (this step is optional).
--------------------
But now, that board seems to be supported by Intel® Matrix Storage Manager.
http://www.intel.com/support/chipsets/sb/CS-015001.htm

Anyhow, if OP does not want to use RAID, should not enable BIOS RAID option
nor load Intel RAID drivers.
There will be no performance degradation if RAID options are not used
(assuming if loading a single drive in RAID enabled setup would be
possible).
 
E

Eric Gisin

The ICH5R is no different in IDE and RAID modes.
The option changes a PCI register that controls what driver the OS loads.
Enabling RAID for Win 2K/XP forces you to switch from the Microsoft
to Intel IDE port driver, which may affect performance or error handling.

In later ICH versions, the RAID option likely enables AHCI too.
 

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