MULTIPLE POINTS IN TIME DISK IMAGES FOR DISASTER RECOVERY

摘要

An enterprise disaster recovery system, including at least one data disk, a processor for running at least one data application that reads data from the at least one data disk and writes data to the at least one data disk over a period of time, a recovery test engine that (i) generates in parallel a plurality of processing stacks corresponding to a respective plurality of previous points in time within the period of time, each stack operative to process a command to read data at a designated address from a designated one of the at least one data disk and return data at the designated address in an image of the designated data disk at the previous point in time corresponding to the stack, and (ii) that generates in parallel a plurality of logs of commands issued by the at least one data application to write data into designated addresses of designated ones of the plurality of data disks, each log corresponding to a respective previous point in time, wherein the plurality of previous points in time within the period of time are specified arbitrarily by a user of the system.

主权项

1. An enterprise disaster recovery system, comprising:
a plurality of data disks; a processor for running at least one data application that reads data from at least one data disk of the plurality of data disks and writes data to said the at least one data disk over a period of time; a recovery test engine that:
generates in parallel a plurality of processing stacks corresponding to a respective plurality of previous points in time within the period of time, each processing stack operative to process a command to read data at a designated address from a designated data disk of the plurality of data disks and return data at the designated address in an image of the designated data disk at the previous point in time corresponding to the processing stack; andgenerates in parallel a plurality of logs of commands issued by the at least one data application to write data into designated addresses of designated data disks of the plurality of data disks, each log corresponding to a respective previous point in time.