Resilience, the ability to carry on in the face of adversity, is a hot topic among those who manage industrial systems. Automatic server failover is an important building block for making automation systems resilient. Not long ago, this was a luxury only large systems could afford. With increased accountability and advances in technology, industrial users of every size are now obliged to consider how redundancy can increase system resilience.
Chris Little, media relations director at Trihedral Engineering Limited, creators of VTScada software, talked with Control about five questions users must ask to ensure a new SCADA application will support redundancy.