Configuring FPO

Follow the steps listed in the IBM Storage Scale: Concepts, Planning, and Installation Guide to install the IBM Storage Scale RPMs and build the portability layer on all nodes in the cluster.

You can configure password-less SSH for root user across all the IBM Storage Scale nodes. However, in cases of special security control, you can configure at least one node for the root user to access all the IBM Storage Scale nodes in a password-less mode. IBM Storage Scale commands can be run only over these nodes.

For OS with Linux® kernel 2.6, enter the following commands on all the IBM Storage Scale nodes that are set as root to set vm.min_free_bytes:

# TOTAL_MEM=$(cat /proc/meminfo | grep MemTotal | tr -d \"[:alpha:]\" | tr -d \"[:punct:]\"
| tr -d \"[:blank:]\") # VM_MIN_FREE_KB=$((${TOTAL_MEM}*6/100)) 

# echo "vm.min_free_kbytes = $VM_MIN_FREE_KB" >> /etc/sysctl.conf # sysctl -p 

# sysctl -a | grep vm.min_free_kbytes