On Thursday 16 December 2010 01:13:24 Dan Kegel wrote:
I don't think google uses magnet-tapes or similar for any backups except th=
vital core data of its business. Given the number and size of their data-
centers around the world, they just sync the data to a different part of th=
world an be done with it. Of course the deletion has to be synced to all=20
remote-copies and probably also forwarded to older backups but once such a=
mechanism is implemented it should do the actual delete within a day...
There are even universities that decided against a new tape-library and in=
favor of a big stack of disks for long-term backup because these where=20
cheaper, similar reliable and much faster for restore. And they don't need =
special tape-library-managing app to access the data, a file-browser or the=
command-line is enough...
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