Reducing failover time between data nodes

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11467929
APP PUB NO 20210073088A1
SERIAL NO

16561073

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Abstract

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A storage node that maintains a replica of a logical volume for use in response to a failover trigger includes a data node with volatile memory in which a filesystem and its metadata and a VDM and its metadata associated with the replica are maintained prior to the failover trigger. The storage node also includes a SAN node in which data associated with the replica is maintained. The data is maintained in a RW (read-write) state by the SAN node prior to the failover trigger. However, the replica is presented in a RO (read-only) state by the storage node prior to the failover trigger. The storage node changes the in-memory state of the filesystem and VDM to RW responsive to the failover trigger. Because the filesystem and its metadata and VDM and its metadata are already in memory and the data is in a RW state in block storage the failover is completed relatively quickly.

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Patent Owner(s)

  • DELL PRODUCTS L.P.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dharmadhikari, Amit Pune, IN 7 88
Potnis, Ajay Pune, IN 19 184
Sahin, Adnan Needham, US 75 1069

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