Patent ID: 7017016
Filing Date: 2006-03-21
Classification: G06F

Abstract:
1. A distributed processing method which controls access to a shared storage unit shared by a plurality of computers, the method comprising: managing a storage quota of each user, the storage quota limiting the total amount of data that each user is allowed to store on the shared storage unit; identifying a particular user who has issued a write request from one of the plurality of computers in an attempt to store data into the shared storage unit; calculating a free storage quota of the particular user identified; and allocating, to the one of the plurality of computers issuing the write request, a reserve space as part of the free storage quota calculated, the reserve space being an amount of storage space on the shared storage unit which is to be managed at the discretion of the one of the plurality of computers issuing the write request, wherein a requesting computer executes another write request from a same user without being allocated a new reserve space as long as a data size of the another write request does not exceed a remaining reserve space.