Patent ID: 8327098
Filing Date: 2012-12-04
Classification: G06F

Abstract:
1. A nearline disaster recovery storage system, the system comprising: a first site having a server supporting an operating system; a data set generated and stored at the first site; a backup data set duplicative of the data set, the backup data set being generated and stored at the first site; a second site separated from the first site, the second site comprising: a second data set generated and stored at the second site; a second backup data set duplicative of the second data set, the second backup data set being generated and stored at the second site; at least one tertiary site separated from the first site and the second site, the tertiary site comprising: a network connecting the first site, the second site and the at least one tertiary site; wherein the backup data set is transported from the first site to the second site over the network after the generation of the backup data set; wherein the second server restores the backup data set to a native format; wherein after the backup data set is restored, in the event the first site becomes unusable, the virtual application server can attach to the backup data set; wherein the second backup data set is transported from the second site to the at least one tertiary site over the network after the generation of the second backup data set; wherein the at least one tertiary site restores the second backup data set to a native format; wherein after the second backup data set is restored, in the event the first site and the second site become unusable, the tertiary virtual application server can attach to the second backup data set.