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Data tape boxes
Each of these 100 or so boxes hold tapes containing data harvested by the PGS fleet. One box contains around 30 tapes, and each tape holds around 500GB of data. If all the pictured boxes contain 30 tapes, that adds up to 1.5 petabytes of raw storage capacity.
The tapes are stored in a separate mini-datacentre on site for redundancy purposes, before their data is sent to the main processing hall for analysis.
Photo credit: Jack Clark
Want to know more about PGS's 'lunatic fringe' computing? Read ZDNet UK's datacentre tour diary.