Before proceeding with installation, prepare your environment by following the suggestions in the following sections.
Ensure that the PATH environment variable for the root user on each node includes /usr/lpp/mmfs/bin. (This is not required for the operation of GPFS™, but it can simplify administration.)
# dsh uname -opr
Node01: 2.6.18-128.1.14.e15 x86_64 GNU/Linux
Node02: 2.6.18-128.1.14.e15 x86_64 GNU/Linux
Once you have dsh set up, you can use it to install GPFS on a large cluster. For details about setting up dsh or a similar utility, review the documentation for the utility.
Before installing GPFS, it is necessary to verify that you have the correct levels of the prerequisite software installed on each node in the cluster. If the correct level of prerequisite software is not installed, see the appropriate installation manual before proceeding with your GPFS installation.
For the most up-to-date list of prerequisite software, see the GPFS FAQ in IBM® Knowledge Center.
Before proceeding, see also GPFS and network communication.