Re: [CentOS] Intel ICH10R on CentOS 5.4

2010-06-09 Thread William Warren
On 6/9/2010 7:44 PM, nate wrote:
 Hey there..

 I was wondering if anyone could share experiences they have had
 with the Intel ICH10R SATA controller? I tried looking around
 but all I could find were RAID references, I have no interest
 in using the RAID functionality just basic SATA JBOD. Wondering
 if there are any gotchas for performance, drivers, quality etc.

 I normally don't touch anything that is not hardware RAID though
 this is a special project.. And even if I get demo gear I won't
 have enough time to put it through real paces(likely need weeks)
 before a decision needs to be made.

 I don't see anything that is causing alarm but just curious if
 anyone else has experiences.

 thanks

 nate

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jsut put the bios into sata or ata mode and not raid..then the raid 
functionality is zero..:)
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Re: [CentOS] Intel ICH10R on CentOS 5.4

2010-06-09 Thread Mark Pryor
Nate

--- On Wed, 6/9/10, nate cen...@linuxpowered.net wrote:

 From: nate cen...@linuxpowered.net
 Subject: [CentOS] Intel ICH10R on CentOS 5.4
 To: centos@centos.org
 Date: Wednesday, June 9, 2010, 4:44 PM
 Hey there..
 
 I was wondering if anyone could share experiences they have
 had
 with the Intel ICH10R SATA controller? I tried looking
 around
 but all I could find were RAID references, I have no
 interest
 in using the RAID functionality just basic SATA JBOD.
 Wondering
 if there are any gotchas for performance, drivers, quality
 etc.
 
 if
 anyone else has experiences.

I have the GA EP45-ud3r MB with this north bridge. Mine has 3 separate Bios 
entries for ahci, raid, and jmicron. 

IIRC C5.4 has drivers for all. The worst thing you can do is install with
the functionality off in the bios. Turn them all on, install, then decide if 
you want to tweek.

I never ran JBOD, but did try RAID0 and it was flawless. Dmraid handled it.

-- 
Mark


  
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Re: [CentOS] Intel ICH10R on CentOS 5.4

2010-06-09 Thread John R Pierce
William Warren wrote:
 jsut put the bios into sata or ata mode and not raid..then the raid 
 functionality is zero..:

even when its enabled, the raid functionaliy of the ICH??R chips is 
zero.  :) enabling RAID in the BIOS simply sets a bit in the chip 
thats write-once (once its set, it can't be reset short of a full chip 
reset), this does two things. 

A) it changes the PCI DEVICE_ID of the chip so it requires different 
drivers,
B) it tells the BIOS and drivers that they should implement Intel 
Matrix aka fake raid rather than standard SATA JBOD.

thats *ALL* it does in hardware.  nada else.


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Re: [CentOS] Intel ICH10R on CentOS 5.4

2010-06-09 Thread William Warren
On 6/9/2010 8:27 PM, John R Pierce wrote:
 William Warren wrote:

 jsut put the bios into sata or ata mode and not raid..then the raid
 functionality is zero..:
  
 even when its enabled, the raid functionaliy of the ICH??R chips is
 zero.  :) enabling RAID in the BIOS simply sets a bit in the chip
 thats write-once (once its set, it can't be reset short of a full chip
 reset), this does two things.

  A) it changes the PCI DEVICE_ID of the chip so it requires different
 drivers,
  B) it tells the BIOS and drivers that they should implement Intel
 Matrix aka fake raid rather than standard SATA JBOD.

 thats *ALL* it does in hardware.  nada else.


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i understand that..but he doesn't want the fakeriad of the bios 
emulation or bit flip or whatever active so my comments about how to 
avoid it are accurate and stand as accurate.
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