LinuxQuestions.org
View the Most Wanted LQ Wiki articles.
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Distributions > Red Hat
User Name
Password
Red Hat This forum is for the discussion of Red Hat Linux.

Notices

Reply
 
Search this Thread
Old 06-26-2007, 02:09 PM   #1
Jukas
Member
 
Registered: Mar 2005
Posts: 141

Rep: Reputation: 15
RHEL 4 WS & onboard raid controller problem


I have a supermicro 1u server that I want to setup a RAID1 array on. I can enable the onboard raid controller in the bios as either the Intel ICH7R or Adaptec controller, and can create the mirrored array just fine.

When I try and boot into rhel 4 setup however instead of it only seeing 1 drive as I expect, it sees both of the sata 500gb drives and only gives me an option for to create a software raid array which isn't what I want.

I was under the impression that hte 2.6 kernel recognized that chipset and raid controller, but could it be as simple as having to provide a driver anyways?

I've setup tons of raid systems on Win32 based systems, but this is my first under linux.
 
Old 06-28-2007, 09:22 AM   #2
ramram29
Member
 
Registered: Jul 2003
Location: Miami, Florida, USA
Distribution: Debian
Posts: 848
Blog Entries: 1

Rep: Reputation: 47
you may need to include and load the driver (module) in your initrd ramdisk as the system boots. These so called raid motherboards are not really hardware raid, all they do is provide a little chip that provide some i/o resources when copying from one disk to the other; you still need a windows driver to make it work by default. linux software raid is very good and I would recommend it over the hardware raid - for me it's easier to recover using linux software raid. look and see if there is a linux module for this raid chip.
 
Old 06-28-2007, 09:26 AM   #3
ramram29
Member
 
Registered: Jul 2003
Location: Miami, Florida, USA
Distribution: Debian
Posts: 848
Blog Entries: 1

Rep: Reputation: 47
I just looked and as I suspected, even Intel recommends to use linux raid instead.

http://www.intel.com/support/chipset.../cs-020663.htm

If you want true raid then get yourself a $400 raid card such as a 3Ware or Adaptec. hence, more expensive than the motherboard itself. don't be fooled by all these new motherboard that come with raid and with a new model number - they are not true raid. they're just trying to sell you.
 
Old 06-29-2007, 12:03 AM   #4
Jukas
Member
 
Registered: Mar 2005
Posts: 141

Original Poster
Rep: Reputation: 15
Thanks for the info, I had a feeling it was a driver issue but I just wanted to be sure I wasn't nuts

Fortunately the client decided they really want hardware raid, and have opted for a 3ware 9650SE controller.
 
  


Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
silicon image 0680 pci-raid controller && Fedora happy78 Linux - General 1 06-07-2005 01:07 AM
RAID controller card override onboard RAID controller? Dr. Psy Linux - Enterprise 1 05-30-2005 10:35 AM
3Ware Raid Controller & fdisk tobyheywood Slackware 5 04-26-2005 06:38 PM
Sata RAID with onboard raid controller SourCreamAndOni Linux - Hardware 1 05-21-2004 12:51 AM
SuSE 8.2 installation kernel panic with promise 20276 onboard RAID Controller Tarball_Phreak Linux - Hardware 0 11-06-2003 11:12 AM


All times are GMT -5. The time now is 11:09 PM.

Main Menu
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
identi.ca: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration