4 min read

What You’re Missing from Your Disaster Recovery Strategy: Part 3

If you’ve been following along in this series, including 17 Shocking Statistics about Disaster Recovery and Business Resiliency: Part 1 and Your Disaster Recovery and Business Resiliency Strategy: Part 2, you understand the recommended best practices of a modern, effective disaster recovery and business resiliency strategy—and what not to do.  Now it’s time for a deeper dive.

Familiar Is Not Always Better

Let’s start with why a traditional approach is not always optimal. Although an old school backup storage strategy might seem familiar (with its physical disk drives or tape) and appears to offer a straightforward “set it and forget it” solution, it does have several disadvantages, including:

  • Capacity Concerns

One of the biggest drawbacks to traditional systems, with disk and tape storage, is the amount of space they consume. Organizations everywhere are being challenged with accessing, managing, storing and protecting increasing amounts of application and customer data, including global compliance mandates around what data can be retained and when data must be expired. In this traditional scenario, the more data you have to backup and store, the more real estate you require. The related costs of this type of storage increase the cost of developing a disaster recovery plan, which requires expensive offsite storage.

  • Network Issues

Backup and recovery are just a few functions that can take place over corporate networks. SAN and NAS appliances can support storage needs, but always ensuring you have the necessary bandwidth on your corporate intranet can make network planning challenging and in some cases, expensive.

  • Longevity Matters

The inability to archive means disk storage must always be used in tandem with tape, optical mediums, or other more permanent storage. For this reason, maintaining traditional systems can be costly and cumbersome for organizations with complex data storage requirements.

The Three Pillars of Software-Defined Storage

For an optimal disaster recovery, you should consider a software-defined storage (SDS) platform, which offers a comprehensive, modern approach to protecting your data availability and integrity.

Interested in learning more? Well read on to discover the three distinct tiers or service capabilities SDS has to offer:

  • Asynchronous Replication: Provides data protection and availability in the event of a natural disaster by continuously updating remote copies with no impact to local performance and:
    • Updates remote storage arrays, wherever they are, with no impact to local performance
    • Uses standard IP-based links
    • Optimizes bandwidth via compressed, multi-stream transfers & prioritized QoS
    • Allows for test readiness non-disruptively
  • Continuous Data Protection: Helps protect against security breaches by letting you return to any-point-in-time without explicit backups and:
    • Restores arbitrary point-in-time within a 14-day period
    • Logs and timestamps all I/Os to the selected virtual disks
    • Has no need to interrupt applications
    • Has no host agents required
    • Is easy to enable and revert from
    • Creates known-good restore points
  • Sync Mirroring: Delivers real-time I/O replication for continuous availability and:
    • Eliminates storage as a single point of failure
    • Enhances survivability using physically separate nodes
    • Updates distributed copy simultaneously
    • Mirrored virtual disks behave as one, multiported shared drive

Synchronous mirroring enables you to present a single virtual disk to applications and lets you do stretch clustering with zero touch failover. Therefore, if you face a disaster situation your infrastructure will seamlessly fail-over to standby datacenters. You’ll also want a vendor who can do active site replication over the WAN for disaster recovery to protect data across broader regions, across coasts or between continents.

Synchronous mirroring not only provides resiliency against outages, but also provides flexibility during maintenances to avoid the typical planned downtime scenarios. The result is zero interruption for applications due to storage-related downtime.

Avoid Downtime with a Software-Defined Storage Platform

While disaster recovery solutions are essential, even more essential is the solution that avoids the disaster of any downtime altogether.

Here’s the recap of the best-in-class SDS platform:

  • Fast, simple, remote-site disaster recovery and migration
  • Update distant copies without impacting local performance
  • Protect your data and return to any point-in-time without taking explicit backups
  • Real-time I/O replication for continuous availability

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Stay Tuned

Next in this series, we’ll explore how SDS gives you availability, performance, efficiency and easier management across all types of storage types, including physical servers or virtualized hosts in a hyperconverged infrastructure, SAN or in the cloud.

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Interested in seeing more of what SDS has to offer? Schedule a 15-minute live demo with one of our Solutions Architects today!

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