Patent ID: 7774327
Filing Date: 2010-08-10
Classification: G06F

Abstract:
1. A method of booting up a storage server which includes a processor and a memory coupled to the processor, the method comprising: loading, into the memory, a first part of an active file system during booting up the storage server, wherein the storage server maintains the active file system and a read-only, persistent point-in-time image (RPPI) of the active file system, wherein the active file system is an inode based file system, which comprises a file system information block, a plurality of inode blocks storing metadata of the active file system, and a plurality of data blocks storing actual data of the active file system; delaying loading of any part of the RPPI into the memory until the storage server receives a request to access the RPPI after the storage server has already been booted; and loading the RPPI into the memory upon receiving the request.