Home | Articles | About | Contact | Forum |
Saturday, November 23, 2024



Lunarpages.com Web Hosting

Mailing List

E-mail:
By Joining the mailing list you will be notified of site updates.


Show Your Support For
This Site By Donating:











Audience: System Admins - Experts
Last Updated: 3/11/2005 6:06:10 AM
Original Creation Date: 3/11/2005 6:06:10 AM
**All times are EST**





LSI MegaRAID 500 on RHEL4

By Erik Rodriguez

This article describes the use of the LSI megaRAID 500 (475) with RHEL4 (Redhat Enterprise Linux 4).


Problem

If you are already running RHEL3, and are upgrading, you will be alerted by anaconda that no hard disks were found. Despite choosing the LSI driver, the card is not supported. This may also apply to the Dell Perc3 cards. Dell uses the LSI cards and changes the BIOS.

This is a result of several things. First, RHEL4 now uses the 2.6.x kernel instead of the 2.4.x used with RHEL3. LSI has not released any drivers for the LSI megaRAID 500 that support the 2.6.x kernel. This card was supported natively on RHEL3, and drivers are provided for older versions of redhat linux.

Possible Solutions

While the you will be unable to install the OS to drives controller by the LSI card itself, a primary drive using a separate controller can be used to install the OS. There is a patch available for the LSI legacy drivers. If you chose to use the patch, you must build a kernel for it. It may or may not be possible to transfer the initial OS install from the non-LSI controlled drive to the LSI card.

Easier Solution

Getting a new RAID card is often an easier solution. I have used the Adaptec 2100s with success. However, RHEL4 does not name the drives attached to Adaptec 2100s normally. For example, my RAID 1 drive that was mounted as /home in RHEL and was installed as /dev/sdb1 is now named by RHEL4 as /dev/mapper/VolGroup00-LogVol00. I have no idea why it named the drives like this, I'm assuming it is directly related to the 2.6.x kernel. I also had trouble with the boot loader. LILO is no longer available, so GRUB must be installed. Using the default drive partitioning, RHEL4 was putting the boot loader on the wrong partition. Make sure you review the boot settings before you go through with the package installation. It might save you some time and frustration.


TCP vs. UDP
Juniper SRX anti-spam filtering config
Windows Server 2008 Clustering Configuration
Windows 2008 R2 Network Load Balancing (NLB)
Extreme Networks: Downloading new software image
Juniper SRX save config to USB drive
Juniper SRX logout sessions
Extreme Networks Syslog Configuration
Command line drive mapping
Neoscale vs. Decru
Data Security vs. Data Protection
Juniper SRX Cluster Configuration
HOWTO - Create VLAN on Extreme Switch
Using a Non-local Colocation Facility
Linux Server Administration
IT Chop Shops
Flow Viewers: SFLOW, NetFLOW, and JFLOW
Exchange 2007 Back Pressure
IPtables open port for specific IP
Politics in IT Departments
HOWTO - Block Dropbox
Cisco IOS Cheat Sheet
Subnet Cheat Sheet
Design a DMZ Network
How DNS works
Firewall Configuration
Juniper SSG Firewalls
Server Management
Configuring VLANs
Runlevels in Linux
Server Clustering
SONET Networks
The Red Hat Network
Server Colocation
Complicated Linux Servers
Dark Fiber
Data Center Network Design
Firewall Types
Colocation Bandwidth









Copyright © 2002-2016 Skullbox.Net All Rights Reserved.
A division of Orlando Tech Works, LLC
By using this site you agree to its Terms and Conditions.
Contact Erik Rodriguez