Redundancy and high availability with Evidian SafeKit
What is a SCADA
SCADA systems make it possible to control industrial processes, to interact directly with devices such as sensors, valves, pumps, motors, through human-machine interface software.
Why a SCADA software
If the SCADA software is down, the production stops.
That’s why, the SCADA software must be always available for operators who must react immediately to the slightest incident.
Key players list
in SCADA software
- Schneider Electric
- Mitsubishi Heavy Industries
- Yokogawa Electric Corporation
- Valmet GmbH
Redundancy and high availability at the application level
In this type of solution, only application data are replicated. And only the application is restared in case of failure.
With this solution, restart scripts must be written to restart the application. This solution is platform agnostic and works with applications inside physical machines, virtual machines, in the Cloud. Any hypervisor is supported (VMware, Hyper-V...).
Redundancy and high availability at the virtual machine level
In this type of solution, the SCADA software is put inside a virtual machine. The full Virtual Machine (VM) is replicated and restarted (Application + OS).
The advantage of this solution is that there is no restart scripts to write per application. This solution is generic for any SCADA software. It works with Windows/Hyper-V and Linux/KVM but not with VMware. This is an active/active solution with several virtual machines replicated and restarted between two nodes.
Built-in Hyper-V replication
- Asynchronous replication => data loss
- Manual failover (no automatic failover)
- Not a high availability solution
Microsoft clustering (same as VMware HA)
- Requires a shared disk
- Price of the shared disk and its installation (SAN, iSCSI)
- Configuration complexity of Windows failover cluster (AD…)
- Remote sites = replicated storage
- Simple and economical
- Synchronous replication => no data loss
- Automatic failover and failback
- No shared disk
- Free trial and quick installation guide
Solution preferred by Siemens
SafeKit is deployed by Siemens in Australia, France, the Netherlands, Qatar, Switzerland, the UAE, the UK, the US.
SafeKit chosen by Alstef Group
Alstef Group, a key player in baggage handling systems, deploys SafeKit for redundancy and high availability of its SCADA software suite, BAGware.
SafeKit has been deployed by Alstef Group in many airports with BAGware.
Fives Syleps has chosen SafeKit
This platform agnostic solution is ideal for a partner reselling a critical application and who wants to provide a redundancy and high availability option easy to deploy to many customers.
With many references in many countries won by partners, SafeKit has proven to be the easiest solution to implement for redundancy and high availability of building management, video management, access control, SCADA software...