US 11,379,317 B2 · Uninterrupted file level restore service using siamese engine

Abstract

Methods and systems for restoring data to a host device are described. According to some embodiments, a hybrid buffer may be used to generate a twin file of each file object to be restored and append the twin file to the corresponding file object. Each file object and its corresponding twin file may be transmitted to a construction container via a restore agent. In the event of an unexpected abort during the first restoration session, the restore agent may preserve the twin file of a file object currently being restored (if one has been created at the time of the abort) and instruct the hybrid buffer to terminate operation. During a subsequent restore session, the restore agent may poll for the preserved twin file and commence the data restore operation from the file object currently being restored using the twin file.

Claims20

Dependent claims

A method comprising:

transmitting, to a target device, a request to restore a plurality of file objects to a host device;
restoring, during a first restore session, one or more of the plurality of file objects requested, wherein restoring a file object comprises:
creating a twin file of the file object using a Siamese engine and appending the twin file to the file object;
storing the file object and the twin file in an operational buffer;
and
transmitting the file object and the twin file to a reconstruction container;
detecting an abort of the first restore session;
pausing restoration of a file object currently being restored in response to detecting the abort;
polling, during a second restore session, for a twin file of the file object currently being restored;
and
in response to receiving an acknowledgement of the twin file of the file object currently being restored, commencing restoration of the plurality of file objects with the twin file of the file object currently being restored.

8 more elements

A system comprising:

a target device to back up data;
and
a host device to:
transmit, to a target device, a request to restore a plurality of file objects to a host device;
restore, during a first restore session, one or more of the plurality of file objects requested, wherein restoring a file object comprises:
creating a twin file of the file object using a Siamese engine and appending the twin file to the file object;
storing the file object and the twin file in an operational buffer;
and
transmitting the file object and the twin file to a reconstruction container;
detect an abort of the first restore session;
pause restoration of a file object currently being restored in response to detecting the abort;
poll, during a second restore session, for a twin file of the file object currently being restored;
and
in response to receiving an acknowledgement of the twin file of the file object currently being restored, commence restoration of the plurality of file objects with the twin file of the file object currently being restored.

11 more elements

A non-transitory computer readable medium, having instruction stored thereon that when executed by a processing device, cause the processing device to:

transmit, to a target device, a request to restore a plurality of file objects to a host device;
restore, during a first restore session, one or more of the plurality of file objects requested, wherein restoring a file object comprises:
creating a twin file of the file object using a Siamese engine and appending the twin file to the file object;
storing the file object and the twin file in an operational buffer;
and
transmitting the file object and the twin file to a reconstruction container;
detect an abort of the first restore session;
pause restoration of a file object currently being restored in response to detecting the abort;
poll, during a second restore session, for a twin file of the file object currently being restored;
and
in response to receiving an acknowledgement of the twin file of the file object currently being restored, commence restoration of the plurality of file objects with the twin file of the file object currently being restored.

8 more elements

Dependencies are inferred from the claim text.

Uninterrupted file level restore service using siamese engine

Life of this patent

Uninterrupted file level restore service using siamese engine

Life of this patent

Abstract

Claims20