PostgreSQL High Availability Cookbook - Second Edition

How to do it...

Assuming pg1 is our current primary node, follow these steps as the root user:

1. Use this command to find the Linux kernel version:

        uname -r

2. Create a mount location by executing this command:

        mkdir /db

3. For kernel versions 3.0 and above, mount the filesystem with this command:

        mount -t xfs -o noatime,nodiratime \
              -o logbsize=256k,allocsize=1m \ 
                 /dev/VG_POSTGRES/LV_DATA /db

4. For kernels below 3.0, mount with this command:

        mount -t xfs -o noatime,nodiratime \
              -o logbufs=8,logbsize=256k,attr2 \ 
              -o allocsize=1m /dev/VG_POSTGRES/LV_DATA /db

5. Execute this command to confirm a successful mount:

        df /dev/mapper/VG_POSTGRES-LV_DATA