Patent ID: 8127101
Filing Date: 2012-02-28
Classification: G06F

Abstract:
1. A file server which provides a file service to a host computer, comprising: an interface coupled to the host computer; a processor; a memory; and an interface coupled to a disk drive, wherein the file server is configured to: calculate a capacity of storage areas in the memory, which is required to provide the file service; execute a first memory check in which the storage areas having the calculated capacity are tested; execute, after the first memory check is completed, a second memory check in which remaining storage areas in the memory are tested; and start, in a period after the first memory check is completed and before the second memory check is completed, providing the file service, wherein the file server provides a synchronous write file service and an asynchronous write file service, and wherein a capacity of the storage areas, which is required to provide the synchronous write file service is calculated so as to be smaller than a capacity of the storage areas, which is required to provide the asynchronous write file service.