Disaster Recovery as a Service (DRaaS) is a great way for an organization to start its cloud journey, and the first part of that journey starts with a backup. Data has to get to the cloud before it can be recovered. Most organizations assume the speed of that backup is relatively equal. The truth is that there can be significant differences between solutions as to how fast organizations can get backup data safely stored in the cloud.
Most organizations look at the connection between the data center and the provider, a.k.a the Internet, as the big bottleneck. While bandwidth is a factor, the reality is it is just one variable that makes up the total backup performance profile.
The Two Phases of DRaaS Backup
The backup piece of most DRaaS solutions are comprised of two phases. First, data is copied from on-premises storage to an on-premises backup appliance, usually provided by the DRaaS solution vendor. The actual data flow is from a storage system to the application server or hypervisor cluster and then to the DRaaS solution appliance. The quality of the DRaaS vendor’s backup software is as critical as a legacy on-premises backup solution.
The DRaaS vendor’s solution has to interface with application and snapshot APIs to make sure data is in a backup state. The solution then needs to quickly and efficiently move the data across the network and on to the on-premises appliance. Part of the performance puzzle is simple; how good is the software at data movement and another is how well can it take advantage of data efficiency technologies like change block tracking, deduplication, compression, etc?
Once all the data is on the appliance, the next step is how efficiently does that solution move data across the Internet connection to the cloud data center. The raw horsepower of the appliance comes into play, as does any WAN optimization efficiencies. Also, the vendor may choose a deeper level of compression and deduplication optimization during the WAN transfer.
One More Thing….
A final area to consider is the speed of the receiving target. The cloud is not some amorphous thing that just gobbles up data. At the other end of that Internet connection is a set of storage systems and most cloud providers have several choices. The speed of the one that the DRaaS provider choose will directly impact how quickly the target can receive data as well as what performance will look like during recovery.
The speed of backup is a key differentiator as organizations try to choose between DRaaS solutions. Without the right data in the cloud at the right time, recovery in the cloud loses its appeal quickly.
There are four other keys differentiators; cloud recovery performance, on-premises recovery performance, security and ransomware protection. To learn more about backup performance and about these 4 other keys watch our on demand webinar, “5 Keys for Next Generation DRaaS”.