Patent ID: 8155504
Filing Date: 2012-04-10
Classification: G11B

Abstract:
1. A method for media disaster recovery when recording data to re-writable disk media comprising the steps of: defining a sequence of recordable units (RUs) in the re-writable disk media, each RU in said sequence having a maximum data capacity; sequentially recording data in each RU in said sequence; computing RU metrics for each RU in which data has been completely recorded and storing said computed metrics in an RU information file in the rewritable disk media; responsive to a media disaster, identifying with said RU information file a disaster RU in which data had been incompletely recorded during said media disaster by ascertaining by said metrics in said RU information file an RU in which data had been most recently completely recorded and determining said disaster RU to be an RU next in sequence to said ascertained RU; and, resuming said sequential recording of data in an RU next in sequence to said disaster RU.