Management and recovery of distributed storage of replicas

摘要

A method of data replica recovery that is based on separate storage drives connected to a network where each storage drive has a storage space divided to contiguous storage segments and is electronically connected to a memory support component via a connection. Pairs of replicas, each of one of a plurality of data units, are stored in a manner that allows, in response to detection of a storage failure in one storage drive, to create replacement replicas in the memory support components of the other storage drives to assure that two replicas of each data unit can be found in the storage system.

主权项

1. A method of data replica recovery, comprising:
providing a distributed storage comprising a plurality of separate storage drives which are connected to a network, each one of said plurality of storage drives having a storage space divided to a plurality of contiguous storage segments and is electronically connected to a memory support component via a connection; storing a plurality of pairs of replicas in said plurality of storage drives, each said pair includes first and second replicas of a data unit from a plurality of data units of a dataset; detecting a storage failure of one of said plurality of storage drives, said storage drive stores a first member of a certain pair from said plurality of pairs; and forwarding a message indicative of said storage failure via said network to trigger a storage of a second member of said certain pair into a respective said memory support component electronically connected via a respective said connection to another of said plurality of storage drives.