Patent ID: 9442941
Filing Date: 2016-09-13
CPC Classification: G06F,H04L

Claim Text:
1. A method comprising: providing a server that stores a hash digest metadata table, the hash digest metadata table mapping a hash digest representing X-Page data to its metadata information; configuring entries in the hash digest metadata table to include entries comprising persistent fields and non-persistent fields, the persistent fields comprising a short hash digest field, a physical layout offset field, a deduplication reference count field and a flags field; configuring the server to be a server to clients comprising a user data cache component (UDC) and a physical layout component (PLC); enabling the short hash digest field to be controlled by the server; enabling the physical layout offset field to be controlled by the PLC; enabling the deduplication reference count field to be controlled by the server; and enabling the flags field to be controlled by the server.