Virtualization technologies introduce new capabilities that can improve
overall availability and reduce recovery times when hardware failures occur.
For example, backing up and restoring virtual machine images is easy and
fast. Traditional physical server images cannot be entirely backed up while the
server is operating.
Disaster recovery for a physical server requires reinstalling the operating
system and applications and then restoring data when a failed hardware server
must be replaced. Disaster recovery for a virtual machine is simply restarting
the VM on a different physical server. Less downtime means higher availability.
Another advantage is a virtual machine can be restored to the same physical
server or to a different one.
Still another advantage is reduced outages for planned downtime. When a
physical server needs to be shut down for maintenance the running virtual
machines can be moved from the affected server to different servers with no loss
of uptime.
In the case of unplanned downtime, virtual machines running on a server that
fails my be immediately restarted on another physical server. This is a much
faster recovery time than waiting for the on-duty tech to arrive and repair the
failed server to restore the application to service.
Contact Allin for a Business Continuity assessment to evaluate your risks and
recommend solutions for a more reliable datacenter.
Contact
Allin Consulting
Phone: (781) 213-6917