Bandwidth Bandit – Offsite Backup Case Study

One of the big drivers for bandwidth usage is offsite back up and storage.

The amount of backup and storage capacity required by a business is to a large extent dependant on the nature of that business. An organisation which regularly processes a large amount of financial transaction or billing data is going to need a lot more than somewhere whose main concern is the safekeeping of CRM data and perhaps the security of information on individual PCs. Moreover as a rule of thumb the larger the amount of data that needs backing up on a daily basis the more critical that data is likely to be for a business.

One of Timico’s customers performs a 50GB daily backup to tape. The tape is removed from the premises every night to an offsite storage location. This is far from ideal. The company until recently operated over a bonded ADSL connection which gave them approximately 2Mbps uplink.

Backing up 50GB over the 2Mb connection was going to take 555 hours. This was not a practical proposition. The company has just put in a 100Mb leased line. The time taken to perform the backup would now be 11 hours which makes an overnight run a real proposition.

Not everyone has a 50GB requirement but as faster broadband technologies come along at cost effective prices more and more people will use an offsite on-net backup facility which will in turn drive bandwidth usage.

bandwidth

The chart is self explanatory. I’ve made some assumptions regarding packet overhead on the pipes

 

Published by Trefor Davies

Liver of life, father of four, CTO of trefor.net, writer, poet, philosopherontap.com

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