Preparing Nodes for Using High Availability

Before you can enable or disable High Availability support on a node, you need to do the following on that node:

1. Update Parallels Cloud Storage:

   # yum update

2. Install the required packages:

   # yum install shaman pdrs rmond

3. Add the following lines to the /etc/snmp/snmpd.local.conf file:

   rwcommunity parallels 127.0.0.1 .1.3.6.1.4.1.26171

   rwcommunity parallels <IP_network/subnet_mask> .1.3.6.1.4.1.26171

   Where <IP_network> is the Parallels Cloud Storage cluster network and <subnet_mask> covers all the nodes participating in the cluster.