Data transfer between dissimilar deduplication systems

A non-transitory computer readable storage medium storing program instructions executable to:

• perform a data migration operation to migrate data from a source computing device to a destination computing device, by virtue of being executable to
• receive, at the source computing device, a request to perform the data migration operation, wherein
• the data comprises a first plurality of data segments, and
• the first plurality of data segments comprise a first data segment;
• transmit a message to the destination computing device, wherein
• the message comprises
• a first fingerprint corresponding to the first data segment, and
• information identifying a first fingerprint type of the first fingerprint;
• receive a reply from the destination computing device, wherein
• the reply indicates whether any data segment of a second plurality of data segments, stored at the destination computing device, is identical to the first data segment;
• and
• in response to an indication in the reply that a second data segment of the second plurality of data segments is identical to the first data segment, prevent the first data segment from being migrated to the destination computing device as part of the data migration operation, wherein
• the indication that the second data segment is identical to the first data segment represents that the first fingerprint is associated with a second fingerprint corresponding to the second data segment,
• the second fingerprint is of a second fingerprint type, and
• the first fingerprint type and the second fingerprint type are different from one another.

A system comprising:

• one or more processors;
• and
• a non-transitory computer-readable storage medium coupled to the one or more processors, wherein the non-transitory computer-readable storage medium stores program instructions executable by the one or more processors to
• perform a data migration operation to migrate data from a source computing device to a destination computing device, by virtue of being executable to
• receive, at the source computing device, a request to perform the data migration operation, wherein
• the data comprises a first plurality of data segments, and
• the first plurality of data segments comprise a first data segment;
• transmit a message to the destination computing device, wherein
• the message comprises
• a first fingerprint corresponding to the first data segment, and
• information identifying a first fingerprint type of the first fingerprint;
• receive a reply from the destination computing device, wherein
• the reply indicates whether any data segment of a second plurality of data segments, stored at the destination computing device, is identical to the first data segment;
• and
• in response to an indication in the reply that a second data segment of the second plurality of data segments is identical to the first data segment, prevent the first data segment from being migrated to the destination computing device as part of the data migration operation, wherein
• the indication that the second data segment is identical to the first data segment represents that the first fingerprint is associated with a second fingerprint corresponding to the second data segment,
• the second fingerprint is of a second fingerprint type, and
• the first fingerprint type and the second fingerprint type are different from one another.