Semiconductor storage device having on-the-fly adaptable storage

Details Semiconductor storage device having on-the-fly adaptable storage Semiconductor storage device having on-the-fly adaptable storage

1997-09-17

1999-11-23

Chan, Eddie P.

Electrical computers and digital processing systems: memory

Storage accessing and control

Memory configuring

711154, 711171, 711172, 711162, G06F 938

Patent

active

059918594

ABSTRACT:
A semiconductor storage device has semiconductor memories each divided into a plurality of logical volumes, wherein host units connected to the semiconductor storage device perform read/write accesses to the logical volumes via access means, the semiconductor storage device further including: data shifting means which performs data shifting required when the constitution of the logical volume is modified, by using a memory block table provided for data shifting process and data shifting buffers provided in a stand-by memory, the data shifting being done in units of memory blocks within the logical volume which is subject to modification; and access control means for managing an access instruction table provided for access from the host units to the target addresses, and for allowing accesses from the host units to be performed properly while the data is being shifted.

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