In a crisis, a successfully designed disaster recovery plan will mean the difference between staying afloat and sinking like a rock.
In Part 1 we will examine:
- 3 advantages of local backup solutions
- 3 disadvantages of local backup solutions
- the definition of a hybrid cloud
Advantages of Local Backup
Ease and Affordability
Local storage solutions used to require a large financial investment and were anything but easy to set up and maintain.
Today however, many standard ISP routers have the built-in capability to transform an external hard drive into Network Attached Storage (NAS) with just a little configuration.
Speed of Recovery and RTO
Understanding how fast you will be able to restore your business in case of disaster is one of the most important features of a comprehensive disaster recovery plan.
The Recovery Time Objective (RTO) is the duration of time and a service level within which a business process must be restored after a disaster in order to avoid unacceptable consequences associated with a break in continuity.
Understanding RTO is a prerequisite to determining whether recovery speed is essential to your business. Ask yourself this: how much time can pass before a disruption begins to seriously and unacceptably impede the flow of normal business operations?
And remember, local backup will always have higher recovery speeds because the data doesn’t first need to be transferred across a network.
On-site availability is the only fail-safe against cloud downtime. Another words, a local backup must be present in case you can’t get online. Also, local recovery is the best solution for restoring large quantities of data because it isn’t dependent on bandwidth speeds or limits.
Problems with Local Backup
Understanding limitations is an important key to choosing the right solution. Here are a few things to consider.
Single Point of Redundancy
Redundancy is probably the biggest limitation of local backup. Cloud solutions store multiple copies of your backup across different servers. That way, if something happens to one of the copies (server goes down, for example), you still have access to your files.
A complete recovery and backup solution must account for all possibilities, including fire, theft, floods and even tornadoes or hurricanes. This just isn’t feasible with local backup.
Local backup alone can not provide protection against the most extreme situations that can eliminate both the system’s data as well as any on-site backup.
The problem with a strictly local solution is that even when the Internet is up, you can only restore your files on-site. Cloud technologies give you the power and availability to restore single files or complete systems over the internet.
Server uptime is also very important. Sentry uses 7 worldwide data-centers. This allows server upgrades and maintenance to be scheduled on a rotation to deliver a 99.9% uptime.
Automation and RPO
Understanding how often your business needs to backup their data is another essential element of a working disaster recovery plan
Recovery Point Objective (RPO) describes the interval of time that might pass during a disruption before the quantity of data lost during that period exceeds the plan’s maximum allowable threshold or “tolerance.”
An automated solution is the only way to protect against security lapses associated with user error and ensure your backup runs within the threshold of your RPO.
Hybrid Cloud: a Definition
A hybrid cloud is an integrated cloud service utilizing both local (private) and third-party (public) clouds to perform distinct functions within the same organization.
Combines the benefits of both technologies: cloud provides redundancy in case of a local disaster while a local backup is the only guarantee you will have access to your data if the internet shuts down.
Next time we will look at what Sentry’s hybrid cloud can do for business continuity.