Howto build a yum repo mirror specific to pe2950?

[Frank Wang]

Hi,
    I'm trying to build a local mirror from rsync://linux.dell.com/repo
according to http://linux.dell.com/wiki/index.php/Repository/OMSA for
several pe2950 here. That's the only server we've purchased from Dell so
far, and all the OS are CentOS-5.2-{i386,x64}. We'd like to use the latest
OMSA-5.5 of course. The file list from the repo is huge and most of them
are not relevant to our hardware and OS. What I'd like to do is to only
download the hardware/latest/pe2950/{rh50,rh50_64} due to bandwidth and
storage concern. But there's also directories like
hardware/latest/system.ven_0x1028.dev_0x0295 which is unknown for me
whether pe2950 related. Do I have any option to filter only those files
related to pe2950 in the repo?
    Thanks in advance.

Regards,
Frank Wang