I have a "is it possible, if so, how?" question

We are about to install some RHEL5 servers for DB and web and Application servers. I've been asked to test which file systems of the following work better for disk I/O.

EXT3 EXT4 JFS BtrFS and any other ones that I can find that work under RHEL

the out-of-box install I have done allows me to format my volumes with EXT2/3 but not ext4 or any others.

Is it possible to "install" other filesystems for use, if so how?

I'm a very new to linux person so use small words if you can Thx

Yes, it is possible, but if you're not PAYING for RHEL, then it's going to be difficult, since you won't be able to pull things down from the online repositories. If you ARE paying for RHEL, then you should give them a call..they can walk you through this, and give you links to the knowledgebase which will tell you what you need to do.

Also, if you put "linux filesystem performance comparison" into Google, you'll find lots, like these.
http://www.linux-mag.com/id/7525/
http://www.phoronix.com/scan.php?pag..._2632_fs&num=1

Hi,

Refer THIS link to get more details on various file systems RHEL supports and size:

Refer the table Technical Specifications of Supported File Systems in the above link

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RHEL5.6 and ext4 ??? ask red hat but i do not think 5.6 dose
I think the 5 series is limited to ext2 and 3 -- no 4
RHEL 6.1 DOSE i run ScientificLinux 6.1 on a ext4 and ext3 boot partition

The OP posted about RHEL5...you posted a link to RHEL6, and that doesn't include information about how to install ADDITIONAL filesystem support, as the OP asked about. Please address the OP's question if you're going to post.