公开(公告)号：US11068502B1

公开(公告)日：2021-07-20

申请号：US16176060

申请日：2018-10-31

Applicant: EMC IP HOLDING COMPANY LLC

Inventor： Ajay Potnis ,  Adnan Sahin ,  Michael Specht ,  Bharadwaj Sathavalli ,  Shampavman Chenjeri Gururajarao ,  Maneesh Singhal

IPC: G06F16/30 ,  G06F16/27 ,  G06F3/06

Abstract: Software Defined Network Attached Storage data backup is implemented using storage array synchronous data replication. A TLU is created for each user filesystem managed by a Virtual Data Mover (VDM). A VDM configuration filesystem is also created containing metadata describing a mapping of user file system TLU to physical storage resources on the storage array. Both the user filesystem TLUs and the VDM configuration filesystem are mapped to an asynchronous Remote Data Forwarding (RDF) group of the storage array, which is used by the storage array to replicate both the user filesystem TLUs and VDM configuration filesystem. Filesystem ID and export path information are reserved on the primary storage array and backup storage array when the RDF group is set up, to enable transparent failover from the primary to the backup node of selected VDMs.

公开(公告)号：US10795787B1

公开(公告)日：2020-10-06

申请号：US16176114

申请日：2018-10-31

Applicant: EMC IP HOLDING COMPANY LLC

Inventor： Ajay Potnis ,  Adnan Sahin ,  Ramrao Patil ,  Shampavman Chenjeri Gururajarao ,  Maneesh Singhal ,  Bharadwaj Sathavalli

IPC: G06F11/20 ,  G06F9/455 ,  G06F16/178 ,  G06F16/188

Abstract: Disaster recovery is provided for Software Defined Network Attached Storage where the data backup is implemented using asynchronous remote data replication. An asynchronous replication facility is created between a primary storage array and a backup storage array. User filesystems being handled by a virtual data mover (VDM) and a configuration filesystem describing the location of the user filesystems on the primary storage array are replicated on the remote data facility to the backup storage array. During failover, all filesystems associated with the asynchronous remote data facility are failed over from a primary storage system associated with the primary storage array to a backup storage system associated with the backup storage array. Where an individual filesystem or individual VDM is to be failed over to the backup storage system, a separate asynchronous replication remote data facility is created to separately replicate data for the aspect to be individually failed over.

公开(公告)号：US10795786B1

公开(公告)日：2020-10-06

申请号：US16176089

申请日：2018-10-31

Applicant: EMC IP HOLDING COMPANY LLC

Inventor： Ajay Potnis ,  Adnan Sahin ,  Shampavman Chenjeri Gururajarao ,  Bharadwaj Sathavalli ,  Maneesh Singhal ,  Amit Dharmadhikari

IPC: G06F11/20 ,  G06F9/455 ,  G06F16/178 ,  G06F16/188

Abstract: Disaster recovery is provided for Software Defined Network Attached Storage where the data backup is implemented synchronous data replication. A synchronous replication remote data facility is created between a primary storage array and a backup storage array. User filesystems being handled by a virtual data mover (VDM) and a configuration filesystem describing the location of the user filesystems on the primary storage array are replicated on the remote data facility to the backup storage array. Individual filesystems, individual VDMs, or groups of VDMs may be selectively failed over from the primary storage array to the backup storage array.