Title:
モバイル・ユーザ・ファイル・システムにおけるキャッシュ管理のためのシステム
Document Type and Number:
Japanese Patent JP4006066
Kind Code:
B2
Abstract:
A system and method for managing a mobile file system cache to maximize data storage and reduce problems from cache full conditions. Cache management automatically determines when the space available in the cache falls below a user-specified threshold. The cache manager attempts to free space needed for caching the next object. Files are deleted from the cache if no server updates are pending and if such deletion will provide the needed space. If automatic deletion does not provide sufficient space, the user is prompted for action. The system user can control the cache by increasing or reducing its size and drive allocation and can explicitly evict clean files from the cache. Cache expansion can be to logical or physical storage devices different than those on which the original cache is stored. The system enables separate storage of temporary files allowing identification and deletion of such files.
Inventors:
Amal Ahmed Sherheen
Krishna Kisole Yerepedi
Krishna Kisole Yerepedi
Application Number:
JP25988597A
Publication Date:
November 14, 2007
Filing Date:
September 25, 1997
Export Citation:
Assignee:
INTERNATIONAL BUSINESS MASCHINES CORPORATION
International Classes:
G06F1/16; G06F12/00; G06F12/08; G06F12/12; G06F17/30
Domestic Patent References:
| JP4205041A | ||||
| JP7182220A | ||||
| JP793205A | ||||
| JP7262074A |
Other References:
Kistler J.J.,Satyanarayanan M.,’Disconnected Operation in the Coda File System’,ACM Trans. on Computer Systems,米国, ACM, 1992年2月,Vol.10,No.1,p.3-25
Sayanarayanan M.,’Mobile Information Access:Accessing information on demand at any location’IEEE Personal Communications,IEEE,1996年2月,Vol.3,No1,p.26-33
Sayanarayanan M.,’Mobile Information Access:Accessing information on demand at any location’IEEE Personal Communications,IEEE,1996年2月,Vol.3,No1,p.26-33
Attorney, Agent or Firm:
Shinya Mayama
Hiroshi Sakaguchi
Yoshihiro City
Hiroshi Sakaguchi
Yoshihiro City