Title:
REAL TIME SHARED DISK SYSTEM FOR COMPUTER CLUSTER
Document Type and Number:
Japanese Patent JP3408200
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To execute the issuance, updating and discontinuance of data access requests with priority orders for a shared storage system inside a clustered computer system by sequencing the data access requests in a storage node based on the respective priority orders.
SOLUTION: For respective storage computers 18, respective request queues 32 for which data read requests and data write requests are sequenced by the priority orders are provided. In the case that the element of the storage computer 18 is not a system disk controller, only one input/output operation is presented at one time to a relating data storage device 20. It is preferable that a normal time synchronizer 34 executed by software or hardware synchronizes the clock of a client computer 12 and the storage computer 18. The priority order generally means the restriction of the data access request for performing limitation so as to respond to the request by using the respective priority orders by the system 10.
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Inventors:
Daniel Manuel Diaz
Rajat Mukherjee
Rajat Mukherjee
Application Number:
JP18266099A
Publication Date:
May 19, 2003
Filing Date:
June 29, 1999
Export Citation:
Assignee:
INTERNATIONAL BUSINESS MASCHINES CORPORATION
International Classes:
G06F12/00; G06F9/48; G06F9/50; G06F13/00; G06F15/167; (IPC1-7): G06F13/00; G06F12/00; G06F15/177
Domestic Patent References:
| JP9152977A | ||||
| JP1093924A | ||||
| JP855137A |
Other References:
【文献】Tewari,R.et.al,Design and Performance Tradeoffs in Clustered Video Servers,Proc.of Int.Conf.on Multimedia Computing and Systems,IEEE,1996年 6月17日
Attorney, Agent or Firm:
Hiroshi Sakaguchi (2 outside)
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