Checkpoint consolidation for multiple data streams

Details Checkpoint consolidation for multiple data streams Checkpoint consolidation for multiple data streams

2011-04-05

2011-04-05

Maskulinski, Michael C (Department: 2113)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S015000, C714S020000

Reexamination Certificate

active

07921328

ABSTRACT:
A mirror destination storage server receives mirror update data streams from several mirror source storage servers. Data received from each mirror is cached and periodic checkpoints are queued, but the data is not committed to long-term storage at the mirror destination storage server immediately. Instead, the data remains in cache memory until a trigger event causes the cache to be flushed to a mass storage device. The trigger event is asynchronous with respect to packets of at least one of the data streams. In one embodiment, the trigger event is asynchronous with respect to packets of all of the data streams.

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patent: 2008/0120470 (2008-05-01), Dhamankar et al.
patent: 2008/0209145 (2008-08-01), Ranganathan et al.
patent: 2009/0216978 (2009-08-01), Fujibayashi

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