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Arrangement for reducing the access time in a storage system
| Details |
Inventors: Penzel, Hans-Joerg;
Assignee: Siemens Aktiengesellschaft (Berlin & Munich, DT)
Primary Examiner: Zache; Raulfe B.
Assistant Examiner:
Attorney, Agent or Firm: Hill, Gross, Simpson, Van Santen, Steadman, Chiara & Simpson
An arrangement for reducing the access time (increasing the hit rate) by the intermediate storage of a plurality of items of data read out from a working store in a storage system with a working store which is divided into storage modules employs the division of each working store module into a plurality of storage zones which can be read out independently of one another. Instead of providing a common data input and output register for the entire storage module, each storage zone is assigned its own read-out data register and the entire storage module is assigned a common data write-in register. |
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DETAILED DESCRIPTION I claim: 1.
An arrangement for reducing the access time in a storage system, which system comprises a working store including store modules, by intermediately storing a plurality of items of data read out from the working store, said arrangement comprising: a plurality of storage zones in each of said store modules which can be read out independently of one another; a plurality of read-out data registers each assigned to a respective storage zone; and a common write-in register assigned to all storage zones of a store module.
2.
In a method of operating a storage system which has a working store divided into store modules having a plurality of storage zones, a separate read-out data register for each storage zone and a write-in register common to all zones of a store module, comprising the step of distributing consecutive store addresses to consecutive storage zones of the store modules.
3.
The process of claim 2, and further comprising the steps of: reading out a requested store word and inputting the read word into a corresponding read-out data register; and reading out a data word assigned to the following address from the adjacent following storage zone and writing such data word in the latter's corresponding read-out data register.
Description:
BACKGROUND OF THE INVENTION 1.
Field of the Invention This invention relates to an arrangement for reducing the access time (increasing the hit rate) by the intermediate storage of a plurality of items of data read out from a working store, in a storage system with working stores divided into storage modules.
2.
Description of the Prior Art In view of the fact that high speed working stores are very expensive and, therefore, for reasons of economy, cannot be made to be large; whereas, however, modern data processing systems require larger and larger working stores, the concept of a store hierarchy, which has long existed in respect of the relationship of working stores to periphery stores is currently frequently being applied to the working store itself
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