What is an IT “Disaster”?As you are operating your business or operations using IT facilities including websites, data servers and cloud services. Sustainability and availability should come in priority so that you can access to your business and perform actions at any time when needed.
But nothing is perfect, even IT services might also encounter problems which will result in a huge impact on your daily operational works. Thus, the problems that lead to malfunction on your IT facilities are called as IT “Disaster”.
IT “Disasters” can impact in both software or hardware facilities. An IT Software Disaster will be human-caused events that target to software properties of your business. Example. your website is hacked by a hacker and added with some spammy code to create unwanted information on your website. IT Hardware Disasters comprise operational failures and natural disasters such as a sudden power failure, IT hardware facility failure or network failures which will make your business down or unable to perform your daily operational works.
What is DRaaS?
DRaaS stands for Disaster Recovery as a Services. The “as a Service” term indicates the Disaster Recovery is delivered by the service provider as one of their products to their customer. For example, Azure Site Recovery is a DRaaS provided by Microsoft Azure to the user as a product for IT Disaster Recovery.
DRaaS will perform a series of function to prevent your websites, data servers or cloud services from broken down that caused by any IT disasters.
What are RPO and RTO?
RPO and RTO are two indicators that required when we talk about Disaster Recovery or Backup Services.
RPO stands for Recovery Point Objective, it depends on the frequency of backup your data as higher frequency in data backup will result in a low Recovery Point Objective. It indicates which point that the data should be recover, how is the amount of data loss that you can afford when recover.
When a disaster occurs and you require to recover back all the thing after a disaster, can you afford your data loss for 1 hour, 2 hours or 1 day? If you schedule your data to be backup once per day determines that you can only get back your data from previous day as the data that obtain today have not been able to back up.
RTO stands for Recovery Time Objective, indicates the time taken to recover the site. Eventually, the recovery process takes time and your server or website will experience downtime during the period as they could not provide service to your business operations. A lower downtime will always better as it reduces the impact on your business operation.
Disaster Recovery vs Backup? Are they the same?
Disaster Recovery Service is not equal to Backup Service. Disaster Recovery focus on RPO (Recovery Point Objective) and RTO (Recovery Time Objective) in order to perform an immediate recovery as an IT “disaster” occurs.
Disaster Recovery Service will replicate an image of your operation servers, websites to a cloud or another facility. The term “replicate” means that what data changed at your operating servers will eventually trigger an update at the replication at the Recovery Site. And when a disaster occurs, several approaches will be taken to failover your website or server to the Recovery Site which consists of the latest update of your origin site and prepared to be function immediately. The failover approach will minimize the gap of downtime and ensure your website or server keep functioning while performing maintenance at your origin site.
Meanwhile, Backup Service used to have a longer RTO and RPO as compared to Disaster Recovery Service but it usually comes with several versions lasts for a certain period. Backup Service Provider will only ensure the data backup at their site is secured and consistent for restoration when needed.
A Disaster Recovery can be done by an organization by establishing a recovery server which replicates their data consistently and perform failover immediately to the recovery server when a disaster occurs. However, this approach will cost much more as the organization are required to pay for the recovery server, maintenances fees as well as hiring experts to monitor the recovery server.
Besides, there are lots of service provider who provide DRaaS such as Azure Site Recovery, Quorum, and Carbonite. The service providers provide cloud storage for storing your replicated server data and perform a failover to a virtual server created at them to continue the services. This method is cheaper and secure as compared to own a recovery server as it eliminates most of the additional expenses.
How Azure Site Recovery helps you as a DRaaS?
Azure Site Recovery is a DRaaS provided by Microsoft Azure Platform to perform disaster recovery with low RPO and RTO.
By using Azure Site Recovery as your Disaster Recovery solution, Azure allows you to rent their cloud storage space at a various number of data centre across the world in order to prevent gigantic disaster that impact to a specific region.
The frequency for data replication from your site to the recovery site is as low as 5 minutes to minimizes the data loss and it only requires 30 minutes to complete a failover from your site to Azure VM.
As long as you recover your hardware facilities, you can perform reverse failover from Azure VM to your site and the data collected at the recovery site will be recovered to your server. In short, your website or server will continue to run although an IT “disaster” occurs.
Azure Site Recovery practices the charges on “Pay what you use” basis. You will only require to pay for the storage space you used for the replicated data. Azure VM only will be charged based on the period of usage.
Choose Azure Site Recovery @ Webserver Malaysia
Having problem on subscribing a Disaster Recovery Solution by yourself? We are prepared to help you!
Webserver Malaysia are trusted reseller for Azure Site Recovery which can help to customizes a handy Disaster Recovery Plan for you. Learn more about Azure Site Recovery here or contact to +603 2770 2833 or mailto:firstname.lastname@example.org for more information.
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