JPH02158963A - Disk controller - Google Patents

Disk controller

Info

Publication number
JPH02158963A
JPH02158963A JP31290888A JP31290888A JPH02158963A JP H02158963 A JPH02158963 A JP H02158963A JP 31290888 A JP31290888 A JP 31290888A JP 31290888 A JP31290888 A JP 31290888A JP H02158963 A JPH02158963 A JP H02158963A
Authority
JP
Japan
Prior art keywords
address
physical address
frequency
read
change
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP31290888A
Other languages
Japanese (ja)
Inventor
Yutaka Okamoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Corp filed Critical Toshiba Corp
Priority to JP31290888A priority Critical patent/JPH02158963A/en
Publication of JPH02158963A publication Critical patent/JPH02158963A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To perform recovery at the time of loss of contents of a management table by adding information indicating a logical address and a frequency in change of its physical position to a part of data to be recorded.
CONSTITUTION: Information related to the frequency in change of correspondence between the logical address and the physical address is additionally recorded in a management table 309, and this frequency is updated when assignment for write in the shortest time is different from that of the preceding correspondence as the result of the retrieval of a table by an address conversion block 307 at the time of data write. When the table will be reproduced, the physical address is successively accessed in all areas of a disk 310 to read out an additional information part, and the physical address for read and the read frequency in change are written in a position corresponding to the read-out logical address of a table indicating correspondence between the logical address and the physical address. This physical address is handled as 'busy' on a table B indicating the use condition of the physical address.
COPYRIGHT: (C)1990,JPO&Japio
JP31290888A 1988-12-13 1988-12-13 Disk controller Pending JPH02158963A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP31290888A JPH02158963A (en) 1988-12-13 1988-12-13 Disk controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP31290888A JPH02158963A (en) 1988-12-13 1988-12-13 Disk controller

Publications (1)

Publication Number Publication Date
JPH02158963A true JPH02158963A (en) 1990-06-19

Family

ID=18034904

Family Applications (1)

Application Number Title Priority Date Filing Date
JP31290888A Pending JPH02158963A (en) 1988-12-13 1988-12-13 Disk controller

Country Status (1)

Country Link
JP (1) JPH02158963A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010108568A (en) * 2008-10-31 2010-05-13 Toshiba Corp Magnetic disk device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010108568A (en) * 2008-10-31 2010-05-13 Toshiba Corp Magnetic disk device

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