DCN September 2016 - Page 18

colocation & outsourcing RECOVERY POSITION Remote site disaster recovery rarely goes as smoothly as planned, eroding precious hours as operations unravel and reveal complex failures. Stuart Gilks of SimpliVity explains how entrenched roadblocks are being overcome through advances in data virtualisation and hyperconvergence. M anaging and protecting remote site data from a central location can be challenging. Inter-office bandwidth constraints and dependencies between the hardware and software infrastructure frequently cripple disaster recovery performance, and complex multi-vendor installations require specialist knowledge and tools to manage and troubleshoot. However recent advances in data efficiency and abstraction now make it possible to manage infrastructure servers at the VM level and achieve a level of data protection previously unobtainable for a globally active company without multi-national scale investment. Take for example a financial services SME with multiple locations worldwide, whose application runs on a high transaction rate database. This application cannot be centralised and must be run locally at the individual remote sites to ensure predictable and peak application performance needs are met. To protect this data centrally, the global team must be able to manage remote infrastructure from a single pane of glass, the WAN must be capable of delivering the bandwidth required, and the RPOs and RTOs must be met while keeping costs under control. WAN optimisation Let’s look at the WAN challenge first. For many organisations the cost of bandwidth needed to move whole data sets between a primary data centre and a secondary site is prohibitive. Those that have interoffice connectivity still struggle with prolonged operations that result in back up failures and compromises such as overreliance on local back ups and insufficient RPOs. Thankfully WAN optimisation changes the economics of siteto-site data transfer for those that choose to invest. Data volume is acutely felt during back ups and WAN transfers, but Managing and protecting remote site data from a central location can be challenging. 18