Solved

P5Q, RAID and Linux

Posted on 2008-10-24
3
1,781 Views
Last Modified: 2016-12-08
I bought a P5Q motherboard: http://www.asus.com/products.aspx?l1=3&l2=11&l3=709&l4=0&model=2164&modelmenu=2

With the idea that it had RAID support as it says: "Intel® Matrix Storage Technology with RAID 0, 1, 5 10 support, Marvell® 88SE6111", Intel being a chip manufacturer it made sense that this was a hardware RAID. However, when I started to install Suse Enterprise (my first time installing Linux) it said that this was a software RAID and that it was not supported in the 2.6 Kernel.

Can someone shed some light on this as looking through the Intel and Asus websites they don't exactly make it easy to figure out what you are getting.
0
Comment
Question by:RegProctor
3 Comments
 
LVL 32

Assisted Solution

by:_
_ earned 100 total points
ID: 22801784
Short an dirty answer
Most onboard raids are soft to keep the cost down, and the cpu does most of the heavy work. The same goes for "cheap" addin raid cards.
Any time you get into real hardware raids (with the raid card doing the heavy work), you are talking expensive. These have their own "processor" on them, which is part of the reasion they are faster and better
Even a basic real raid card can cost as much as the avgerage motherboard.
0
 
LVL 19

Accepted Solution

by:
alextoft earned 250 total points
ID: 22802125
The reason it says it's a software raid is because it is. Proper hardware raid abstracts the presence of individual drives completely, these cheap "pretend" raid chipsets don't.

Simply use the excellent built-in Linux RAID tools.
0
 
LVL 30

Assisted Solution

by:Kerem ERSOY
Kerem ERSOY earned 150 total points
ID: 22803664
Hi,

This means that you don't need to create RAID through your BIOS but instead you go with your logical drive Manager which is built around your SuSE Enterprise. What you need to do is go to your BIOS set your drives as standalone SATA not as a RAID. Reboot your SuSE and select RAID through installation.

Since you already have a software RAID adapter, using OS Software RAID instead would not impact your throughput. In any case your CPU and DMA will do the necessary IO.

Generally Hardware RAID adapters a re a-bit expensise and they even have Battery Backed-up cache systems. If you need the performance go for it. You can attach it to your PCI-e slot that you hve over your board.

Cheers,
K.
0

Featured Post

The Eight Noble Truths of Backup and Recovery

How can IT departments tackle the challenges of a Big Data world? This white paper provides a roadmap to success and helps companies ensure that all their data is safe and secure, no matter if it resides on-premise with physical or virtual machines or in the cloud.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Every server (virtual or physical) needs a console: and the console can be provided through hardware directly connected, software for remote connections, local connections, through a KVM, etc. This document explains the different types of consol…
What do we know about Legacy Video Conferencing? - Full IT support needed! - Complicated systems at outrageous prices! - Intense training required! Highfive believes we need to embrace a new alternative.
Learn how to get help with Linux/Unix bash shell commands. Use help to read help documents for built in bash shell commands.: Use man to interface with the online reference manuals for shell commands.: Use man to search man pages for unknown command…
Learn how to navigate the file tree with the shell. Use pwd to print the current working directory: Use ls to list a directory's contents: Use cd to change to a new directory: Use wildcards instead of typing out long directory names: Use ../ to move…

821 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question