ext3, S/W RAID-5 and many services

["P. Fleury" <fleury users sourceforge net>]

Hi !

I use ext3 over Software RAID-5, and access this through Samba/NFS/HTTP. 
From time to time, the machine  hangs,  no response to any kind of 
input (ping does not respond, nor keyboard/mouse). Only hard-reset does 
the trick.

I also notices that 2 of the 7 disks are in UDMA 33, the others in UDMA 
100. Does this have any impact ? (besides performance)

If I do not mount the ext3 partition, it runs fine. Any help ?

--Pascal

My setup:
RedHat 7.2, kernel 2.4.9-13, all updates with up2date
raidtools-0.90-25
Software RAID-5: 7 x 76.8GB IDE, ext3 -> ~422GB
nfs-utils-0.3.1-13.7.2.1
/: 4GB, ext3
/home: 67GB, ext3
Any other info needed?