Hyper-V Disaster Recovery Optimizing
- 1. Hyper-V disaster recovery optimizing method 1 by Ahmad Firdaus https://www.linkedin.com/in/ahmad-firdaus-5687485a
- 2. Hyper-V disaster recovery method 2 1. Using Export/Import method Advantage: • No additional software for use this option • Basic tool for backup/restore Virtual Machine Disadvantage: • The virtual machine must be shut off or saved for the duration of an export • The VM doesn’t know anything happened, so no files are marked as archived and no databases are committed • There is no mechanism for the restoration of individual files
- 3. Hyper-V disaster recovery method 3 2. Using Snapshots/Checkpoint Advantage: • Be able to revert an operating system for software test purposes • Be able to undo accidental mistakes in system configuration • Be able to revert to a ‘clean’ machine in case something is messed up • Keep track of progress • Be able to export the snapshot as a new, separate VM, without losing the chain of snapshots Disadvantage: • Risk of data loss and corruption • Severe performance impact during production • Performance impact during backups • Can’t restore a backup taken from a host with different CPU architecture or Windows version • Loss of portability. Snapshots can’t be easily moved to another host. Plain VHD VHDX on the other hand are easy to copy over
- 4. Hyper-V disaster recovery method 4 3. Using Replication/Failover Advantage: • Resilience; Provides workload resilience with replication between branch offices or regional sites • Scalability; Replication can be scaled and automated by deploying it together with the cloud service • Lower costs; Lowers the cost-of-ownership by providing a storage-agnostic and workload-agnostic solution that replicates efficiently, periodically, and asynchronously over IP-based networks • Allow to do a manual, "planned failover" for planned maintenance of host. • Do a Planned Failover without downtime for the VM. Disadvantage: • Hyper-V Replication is not Automatic High Availability; need attention Administrator for monitor/controlling • Requirement (minimal) 2 Hyper-V Host Server
- 5. Failover Schema scenario-1 5 Virtual Server with (2) Hyper-V Host Server Failover VM-1A VM-2A VM-3A VM-1B VM-2B VM-3B VM-1B VM-2B VM-3B VM-1A VM-2A VM-3A VM-B Standby SERVER-A SERVER-B VM-A Standby VM-A Online VM-B Online
- 6. Failover Schema scenario-2 6 Virtual Server with 2 Hyper-V Host with 1 Server Failover VM-1A VM-2A VM-3A VM-1B VM-2B VM-3B VM-1B VM-2B VM-3B VM-B Standby SERVER-A SERVER-B VM-1A VM-2A VM-3A VM-A Standby VM-A Online VM-B Online SERVER-C
- 7. Hyper-V disaster recovery method 7 4. Using Commercial Software Advantage: • Easy for disaster/recovery method • Fast backup and restore • Flexible backup and restore options • 100% warranty • Hyper-V focused technology Disadvantage: • Expensive