partitioning enterprise Linux one or more partitions?
 

Hi and sorry for my bad english,

I have two server with 2 xeon cpu dual core, 8gb of memmory, 2 x 73gb in raid hardware for mirror OS and a FC card Qlogic 4GB for connect many Lun with a EMC san. It's for install Oracle Rac and redhat enterprise Linux 4. My question is about partitioning Linux os with a lvm partition. Which is the best partitioning for my configuration? I have 3 choice:
1-
RHEL 4 with ACL SELinux activated for more secure server, monitoring and backuping this server.
Swap partition with ext3
/boot with ext3 partition
/ Root in a LVM partition for the rest of system files

2-
RHEL 4 with no SELinux.
/boot with ext3 partition
/ Root with ext3 partition
Swap partition in a LVM partition
/tmp in a LVM partition
/var in a LVM partition
/usr in a LVM partition
/home in a LVM partition
/opt in a LVM partition

3-
RHEL 4 with no SELinux.
Swap partition with ext3 partition
/boot with ext3 partition
/ Root in a LVM partition
/home in a LVM partition

Thanks a lot in advance.

your setups seem somewhat arbitrary... why selinux on option one but not the others?? for a decent server then i'd err closer towards the 2nd option personally, but it depends on what the server is doing as to whether you actually want your own /opt partition etc... multiple partitions are very useful in a correctly built and operated system but a crippling nail in the coffin of a poorly designed one.