Raindrop Data Systems Ltd, based a stone’s throw from Apt in London’s Golden Square, has developed a power supply backup system for Unix, AIX and Xenix users: called Rollback, the product can restore up to 40 users to the exact point they were at prior to a loss of power – the software automatically switches to backup supply when power is lost, warns users that it is about to shut down, and when power is restored it boots itself back up: if the power loss is only temporary, the system keeps going, and users are unaware of any problems, says Raindrop, which says it tailor-made the product for IBM’s RT.
