SIOS SANless clusters

SIOS SANless clusters High-availability Machine Learning monitoring

Glossary: Windows Server Failover Clustering (WSFC)

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Glossary Windows Server Failover Clustering

Glossary of Terms: Windows Server Failover Clustering
(WSFC)

Definition: A Windows Server Failover Clustering (WSFC) cluster is a group of independent servers that work together to increase the availability of applications and services. SQL Server 2017 takes advantage of WSFC services and capabilities to support Always On availability groups and SQL Server Failover Cluster Instances. SIOS DataKeeper is integrated with WSFC adding the configuration flexibility to build WSFC clusters in the cloud.

Reproduced from SIOS

Glossary: Virtual Machines

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glossary Virtual Machines

Glossary of Terms: Virtual Machines

Definition: A virtual server or virtual machine (VM) is a software based computer architecture that emulates the user experience of a hardware based server. VMs allow the user to run multiple operating systems on the same physical machine. They allow users to allocate critical resources such as compute, storage, networking as needed without the constraints of physical servers.

Reproduced from SIOS

Glossary: System Recovery

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glossary System Recovery

Glossary of Terms: System Recovery

Definition: In computing, system recovery refers to the process of rebuilding a computer system or restoring data from a secondary source, such as an external hard drive. Because this process can require extended application downtime, mission-critical applications are typically protected with high availability clustering that automatically moves application operation to a different server until the primary system can be fully recovered or replaced.

Reproduced from SIOS

Glossary: System Restore

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glossary System Restore

Glossary of Terms: System Restore

Definition: Similar to system recovery, system restore is the process of returning a computer system to an operating state by restoring files from hard disk and restoring registry, system memory and storage media. Microsoft Windows Server environments System Restore feature can return a system operation using snapshots of some system settings, allowing you to revert to specific files and settings without reinstalling the entire operating system.

Reproduced from SIOS

Glossary: SQL Failover

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glossary SQL Failover

Glossary of Terms: SQL Failover

Definition: When clustering software detects a failure in the primary cluster node, it moves operation of the SQL Server to the secondary node in the cluster in a process called failover. Since the secondary node has access to the same data as the primary node, operation continues without downtime or data loss.

Reproduced from SIOS