Patent ID: 9665305
Date: 2017-05-30
CPC Classifications: G06F

Claim:
1. A method comprising: moving metadata associated with data from a memory of a first deduplication device to a disk of the first deduplication device if the data has not been accessed in a predetermined amount of time, wherein the memory comprises the data, wherein data used more than once in the first deduplication is stored in one location on the first deduplication device; not moving the metadata associated with the data from the memory of the first deduplication device to the disk of the first deduplication device if the data has been accessed in the predetermined amount of time; moving the data related to the metadata or portions of the data from the memory to a second deduplication device after the metadata has moved to the disk, wherein data used more than once in the second deduplication is stored in one location on the second deduplication device; deleting the data from the first deduplication device after the data has moved to the second deduplication device; and adding a pointer to the metadata at the disk, after the metadata has moved to the disk, indicating where the data is located in the second deduplication device.