Patent ID: 8135914
Filing Date: 2012-03-13
Classification: G06F

Abstract:
1. At least one storage device having computer-readable instructions encoded thereon which, when executed by a computer comprising a memory and having coupled thereto disk storage and a cache device, the disk storage storing a plurality of data items each at respective addresses, each of the plurality of data items also being stored at a corresponding address on the cache device, cache metadata accessible to the computer providing a mapping between the address on the disk storage and the corresponding address on the cache device at which each data item is stored, perform a method comprising acts of: (A) storing the cache metadata, in the cache device, in a hierarchical data structure comprising a plurality of hierarchy levels; (B) initiating a reboot of the computer; (C) upon initiating the reboot of the computer, loading only a subset of the plurality of hierarchy levels to the memory.