RHEL Large Volume Configuration

Instructions for mounting volume are below for RHEL5, valid as of June 2011.

yum install parted e2fsprogs-libs e2fsprogs-devel libuuid-devel
wget http://jfs.sourceforge.net/project/pub/jfsutils-1.1.15.tar.gz
tar zxvf jfsutils-1.1.15.tar.gz
cd jfsutils-1.1.15
./configure
make & make install
pvcreate /dev/sdb1
vgcreate vg0 /dev/sdb1
vgdisplay

• Note the free physical extents (PE) such as:
Free  PE / Size       3262837 / 12.45 TB
• Create the logical volume (where -n is the volume name and -l is the free PE available)
  # lvcreate -n bigvol -l3262837 vg0

mkfs.jfs /dev/vg0/bigvol
mkdir /backup
mount /dev/vg0/bigvol /backup
wget http://elrepo.reloumirrors.net/elrepo/el5/x86_64/RPMS/kmod-jfs-0.0-1.el5.elrepo.x86_64.rpm
rpm -i kmod-jfs-0.0-1.el5.elrepo.x86_64.rpm
find /lib/modules -name jfs.ko
mount /dev/vg0/bigvol /backup
echo "/dev/vg0/bigvol /backup jfs defaults 0 0" >> /etc/fstab
reboot

test for read/write on /backup folder.
if mounting fails, run fsck.jfs