Unitrends system resource considerations for Windows instant recovery

A virtual failover client (VFC) residing on a Recovery-Series appliance uses the appliance’s resources and impacts system performance. Processors, memory, and storage are assigned to the VFC, so less system resources are available for functions such as backups, archiving, replication, and deduplication. Retention is also impacted, as storage allocated for instant recovery cannot be used for backups.

Before creating a VFC on a Recovery-Series appliance, you should use the procedure described below to check the system load and utilization and determine whether the appliance has adequate resources to perform other functions while also running the VFC.

To determine the system load and utilization

1        In the Navigation pane, select the backup system or replication target where the VFC will run.

2        Click on Settings > System Monitoring > Load and verify that the system load is at an acceptable level.

Note: If the system is consistently in the Alarm Area for prolonged periods of time or if backups are not completed in the desired backup window, you should reconsider the number of VFCs.

3        If VFCs are currently residing on the appliance, select Settings > Instant Recovery > Windows to see resource utilization snapshots for processor, memory, and storage for these VFCs.