Diskless Servers

[Evan Sayer]

Hello-
Is it a good idea to run a mail server or web server diskless?  The 
reason I want to do this is so that all of our server's files will be 
in one place which will make backups more convenient.  Basically I am 
thinking of running one NFS/TFTP file server with disks, and those 
disks will contain the partitions for a web server, a mail server, and 
a login server which will all boot diskless.  Is this safe and ok 
performance wise?  Thanks.