Previously, Storage Switzerland blogged about the merits of employing a tape storage hierarchy to cut backup storage costs. Tape media can furthermore add value as a tier in the broader disaster recovery strategy, as well.
As Lead Analyst George Crump overviewed in a recent video, applications are not all created equal when it comes to recovery time objectives (RTOs, the amount of time that it takes to get an application back up and running following an outage)
Check out George’s blog for more details and to view the video:
I often hear from customers that are sitting on scores of legacy tapes with unknown contents beyond a generic “business data” level, and 99+ percent of them are not known at a granular level. As we all know too well, disaster recovery backups morphed into unintentional data archiving these past 10 – 15 years thanks to litigation and government regulatory investigations, along with general business obligations to retain certain records. The duty to preserve has forced businesses to preserve backup tapes if at least one file on the tape might be under some form of preservation obligation. The IT staff almost never has the equipment or human resources to perform targeted restores of data under preservation and stack it together with other similar data, so they take the easy way out: buy more tape and retain existing tapes vs. overwriting their contents. Companies change backup software providers and migrate to newer backup platforms and get stuck paying maintenance and support for software and hardware they no longer use, but might one day.
According to the Information Storage Industry Consortium, the total data rate for tape is improving by 22.5% MB/sec per year. One concept that is driving this capacity increase in the tape industry is RAIT (Redundant Arrays of Independent Tape). RAIT is ideal for large files that need massive amounts of throughput such as in a disaster recovery scenario where you need the ability to move your whole data center electronically to another location.
In this video, Fred Moore of Horison Information Strategies explains how RAIT works.
Usage of Cookies