21 Jul

Never under-estimate the bandwidth of a car load of tape

The original saying was ” Never under-estimate the bandwidth of a station-wagon full of tapes hurtling down the highway” and is attributed to legendary professor of computer science Andrew Tanenbaum. ( Computer Networks, 4th ed., p. 91)

https://en.wikipedia.org/wiki/Andrew_Tanenbaum

Back then tape capacities were measured in MegaBytes.  With the latest LTO technologies, never was this more true than in today’s world of big data.

You need to shift a load of data offsite to your Disaster Recovery site.

A box of 50 LTO 6 Tapes in your car for a 30 mile trip which takes 1 Hour

(includes loading time and travel in that city congestion!)

50 x 3TB = 150 TeraBytes per hour

That’s 150,000 GigaBytes in 3600 seconds = 40GBytes/S = ~330Gbits/S

You’ll have to go a long way, and with deep pockets to find that kind of WAN bandwidth!

 

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