syslog server filesystem

[Tom Greaser]

I have a very busy syslog server running on rh es 4 
Of course the I/O wait is very high even for the scsi mirror. 
  
The file system is ext3 with no atime mount option. 
  
I was looking at trying another file system on the disk to see 
if that would help.  I've been doing some checking via google 
to see if anyone has a suggestion but didnt see any.. 
  
Most of the filesystem testing is about file creates, reads, and writes 
didnt see anything about appends. 
  
So anyone here on the list have a heavy used syslog server ? 
what filesystem do you use ? 
 
Thanks