throbber
1
`
`(19) JAPANESE
`PATENT OFFICE
`(JP)
`(51) Int. Cl.5:
`G06F 3/06
`
`
`
`Identification Codes:
`301 Z
`
`(12) KOKAI TOKUYO PATENT
`JOURNAL (A)
`
`(11) PATENT APPLICATION PUBLICATION
`NO. HEI 5[1993]-181609
`(43) Publication Date: July 23, 1993
`Sequence Nos. for Office Use:
`FI
`Technical Disclosure Section
`7165-5B
`
`
`Examination Request: Not filed
`(21) Filing No.: Hei 4[1992]-333
`
`(22) Filing Date: January 6, 1992
`
`(71) Applicant:
`
`
`
`(72) Inventor:
`
`
`
`(74) Agent:
`
`No. of Claims: 1 (Total of 4 pages)
`000004237
`NEC Corporation
`5-7-1 Minato-ku shiba, Tokyo
`
`Hideo Hirai
`NEC Corporation
`5-7-1 Minato-ku shiba, Tokyo
`
`Tadashi Wakabayashi, patent attorney
`
`(54) Title: PERSONAL COMPUTER SYSTEM
`(57) Abstract
`Objective
`
`To offer a personal computer system that
`allows sharing of multiple magnetic disk devices by
`multiple personal computers.
`
`Structure
`
`It has a magnetic disk sharing device 3
`equipped with a magnetic disk controlling
`mechanism 6 that controls multiple magnetic disk
`devices 8-12 by considering them as 1 virtual
`magnetic disk device with all of their memory
`regions as a memory region, and a partition control
`table 7 that manages and specifies the access right
`of the respective personal computers 1, 2, ···for
`each partition in the memory region of the virtual
`magnetic disk device, and each computer accesses
`the virtual magnetic disk device according to its
`respective access right.
`
`
`[Figure is translated at the end of the document.]
`
`
`
`
`
`
`
`Oracle-Huawei-NetApp Ex. 1008, pg. 1
`SUBSTITUTE
`
`

`
`
`
`2
`
`Claim
`1. A personal computer system, which is a personal computer system that includes
`
`multiple personal computers and multiple magnetic disk devices, characterized in that
`
`it has a magnetic disk sharing device equipped with a magnetic disk device controlling
`means that controls the aforementioned multiple magnetic disk devices by considering them as 1
`virtual magnetic disk device with all of the memory regions of said multiple magnetic disk
`devices as its memory region, and a security management means that manages the access right of
`the respective aforementioned multiple personal computers in the memory region in said virtual
`magnetic disk device,
`
`and the aforementioned multiple personal computers access the aforementioned virtual
`magnetic disk device according to the aforementioned respective access right.
`
`Detailed explanation of the invention
`[0001]
`Industrial application field
`
`This invention pertains to a personal computer system that includes multiple personal
`computers and multiple magnetic disk devices.
`
`[0002]
`Prior art
`
`A magnetic disk controlling device in a conventional personal computer system can place
`in correspondence only 1 physical magnetic disk device with 1 logical magnetic disk device, and
`this is also true with regard to magnetic disk management of the host software (operation
`system).
`
`[0003]
`
`
`[0004]
`Problems to be solved by the invention
`
`The conventional magnetic disk controlling device described above has a specification
`where only 1 physical magnetic disk device can be placed in correspondence with 1 logical
`magnetic disk device, and there is a disadvantage that an amount of data that exceeds the
`capacity of 1 magnetic disk cannot be handled. There also is a disadvantage that a magnetic disk
`device cannot be shared by multiple personal computers.
`
`
`Magnetic disk devices also cannot be shared by multiple personal computers.
`
`Oracle-Huawei-NetApp Ex. 1008, pg. 2
`SUBSTITUTE
`
`

`
`
`
`3
`
`[0005]
`The objective of this invention is to offer a microcomputer system that has a magnetic
`
`disk controlling device that allows sharing of multiple magnetic disk devices by multiple
`microcomputers by handling data of a size that exceeds the capacity of one magnetic disk device
`by accessing all the memory regions of multiple magnetic disk devices as if the multiple memory
`regions were the memory region in 1 magnetic disk device from individual personal computers
`and managing the access right of individual personal computers.
`
`[0006]
`Means to solve the problems
`
`The personal computer system in this invention has a magnetic disk sharing device
`equipped with a magnetic disk device controlling means that controls multiple magnetic disk
`devices by considering them as 1 virtual magnetic disk device with all of the memory regions of
`these multiple magnetic disk devices as its memory region, and a security management means
`that manages the access right of the respective multiple personal computers in the memory
`region in that virtual magnetic disk device, and multiple personal computers access the virtual
`magnetic disk device according to the respective access right.
`
`[0007]
`Operation
`
`This allows individual personal computers to access all of the memory regions of
`multiple magnetic disk devices as if the memory regions were a memory region of 1 magnetic
`disk device, and the respective access right of the multiple personal computers for that memory
`region in 1 virtual magnetic disk device is specified and managed for each microcomputer.
`
`[0008]
`Application examples
`
`Next, an application example of this invention will be explained while referring to
`figures.
`
`[0009]
`Figure 1 is a block diagram that shows the structure of an application example of a
`
`personal computer system that includes the magnetic disk sharing device in this invention.
`
`
`Oracle-Huawei-NetApp Ex. 1008, pg. 3
`SUBSTITUTE
`
`

`
`
`
`4
`
`[0010]
`In Figure 1, personal computers main bodies 1, 2, ···are connected to a magnetic disk
`
`sharing device 3 through interface boards 4, 5, ···. The magnetic disk sharing device 3 is also
`connected to magnetic disk devices 8-12. The magnetic disk sharing device 3 comprises a
`magnetic disk controlling mechanism 6 and a partition control table 7.
`
`[0011]
`An access request from the personal computers 1, 2, ···to the magnetic disk devices 8-12
`
`is notified to the magnetic disk controlling mechanism 6 through the magnetic disk interface
`boards 4, 5, ···, and it is converted to an access request to a virtual magnetic disk device that
`extends over the magnetic disk devices 8-12 in the magnetic disk controlling mechanism 6.
`Through the process above, the magnetic disk devices 8-12 can be handled from the personal
`computer main body as 1 virtual magnetic disk device with all of the memory regions of the
`magnetic disk devices 8-12 as its own [memory] region.
`
`[0012]
`The security management divides the memory region of the virtual magnetic disk device
`
`described above, sets up the access right for each personal computer in each divided part (will be
`referred to as partition), and prevents illegal access. This is implemented by preparing a partition
`control table 7. The access right to a partition includes R (read), W (write), C (create), D (delete),
`and X (execute).
`
`[0013]
`Figure 2 shows an example of a partition control table. A personal computer 1 can read,
`
`write, create, and execute with a partition 1, can read and write with a partition 2, and can read
`with a partition 3. A personal computer 2 can read, write, create, and execute with partition 1,
`and can read with partition 3. A personal computer 3 can read, write, create, and execute with
`partition 1, and can read with partition 2. The aforementioned security management means can
`prevent illegal access for utilization from a personal computer that is not authorized.
`
`[0014]
`Effect of the invention
`
`As explained above, the personal computer system with the magnetic disk sharing device
`in this invention has the effect of handling data in a size that exceeds the memory capacity of 1
`magnetic disk device by accessing all memory regions of multiple magnetic disk devices as if the
`multiple memory regions were the memory region of 1 magnetic disk device from individual
`
`Oracle-Huawei-NetApp Ex. 1008, pg. 4
`SUBSTITUTE
`
`

`
`
`
`personal computers and managing the access right of each personal computer and sharing
`multiple magnetic disk devices by multiple microcomputers for managing data in an aggregate
`instead of storing them in individual personal computers.
`
`Brief description of the figures
`
`Figure 1 is an application example of a personal computer system in this invention.
`
`Figure 2 is an example of a partition control table.
`
`Explanation of symbols
`1
`Personal computer main body 1
`2
`Personal computer main body 2
`3
`Magnetic disk sharing device
`4-5
`Interface boards
`6
`Magnetic disk controlling mechanism
`7
`Partition control table
`8-12 Magnetic disk devices
`
`
`
`Key: 1
`
`2
`
`3
`
`Figure 1
`
`Computer 1
`Computer 2
`Magnetic disk sharing device
`
`5
`
`
`
`Oracle-Huawei-NetApp Ex. 1008, pg. 5
`SUBSTITUTE
`
`

`
`6
`
`I/F board
`4
`I/F board
`5
`Magnetic disk controlling mechanism
`6
`Partition control table
`7
`Magnetic disk device A
`8
`Magnetic disk device B
`9
`10 Magnetic disk device C
`11 Magnetic disk device D
`12 Magnetic disk device E
`
`Partition
`Partition 1
`
`
`
`Partition 2
`
`Partition 3
`
`Partition n
`
`Access right
`RWCX
`RWCX
`RWCX
`RW
`R
`R
`R
`
`
`Computer name
`Personal computer 1
`Personal computer 2
`Personal computer 3
`Personal computer 1
`Personal computer 3
`Personal computer 1
`Personal computer 2
`.
`.
`.
`.
`.
`.
`.
`.
`(R: Readable, W: Writable, C: Creatable, X: Executable)
`Figure 2
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`Oracle-Huawei-NetApp Ex. 1008, pg. 6
`SUBSTITUTE
`
`

`
`(57)【芁玄】
`【目的】 耇数の磁気ディスク装眮を耇数のパヌ゜ナル
`コンピュヌタで共甚できるパヌ゜ナルコンピュヌタシス
`テムを提䟛する。
`【構成】 耇数の磁気ディスク装眮〜を、それら
`の党蚘憶領域を蚘憶領域ずする個の仮想磁気デむスク
`装眮ずみなしお制埡する磁気ディスク制埡機構ず、仮
`想磁気ディスク装眮の蚘憶領域のパヌティションごずに
`指定する各パヌ゜ナルコンピュヌタ・・・のア
`クセス暩を管理するパヌティション・コントロヌル・テ
`ヌブルずを備えた磁気ディスク共有装眮を有し、各
`パヌ゜ナルコンピュヌタはそれぞれのアクセス暩にした
`がっお仮想磁気ディスク装眮にアクセスする。
`
`Oracle-Huawei-NetApp Ex. 1008, pg. 7
`SUBSTITUTE
`
`

`
`1
`
`【特蚱請求の範囲】
`【請求項】 耇数のパヌ゜ナルコンピュヌタず耇数の
`磁気ディスク装眮を含むパヌ゜ナルコンピュヌタシステ
`ムにおいお、
`前蚘耇数の磁気ディスク装眮を、該耇数の磁気ディスク
`装眮の党蚘憶領域をその蚘憶領域ずする個の仮想磁気
`ディスク装眮ずみなしお制埡する磁気ディスク装眮の制
`埡手段ず、圓該仮想磁気ディスク装眮の蚘憶領域におけ
`る前蚘耇数のパヌ゜ナルコンピュヌタそれぞれの利甚可
`胜な暩利を管理するセキュリティ管理手段ずを備えた磁
`気ディスク共有装眮を有し、
`前蚘耇数のパヌ゜ナルコンピュヌタはそれぞれ利甚可胜
`な前蚘暩利にしたがっお前蚘仮想磁気ディスク装眮にア
`クセスするこずを特城ずするパヌ゜ナルコンピュヌタシ
`ステム。
`【発明の詳现な説明】
`【】
`【産業䞊の利甚分野】本発明は、耇数のパヌ゜ナルコン
`ピュヌタず耇数の磁気ディスク装眮を含むパヌ゜ナルコ
`ンピュヌタシステムに関する。
`【】
`【埓来の技術】埓来、パヌ゜ナルコンピュヌタシステム
`における磁気ディスク制埡装眮は個の論理磁気ディス
`ク装眮に察しお個の物理磁気ディスク装眮しか察応で
`きず、䞊䜍゜フトりェアオペレヌティングシステム
`の磁気ディスク管理も同様ずなっおいる。
`【】たた、磁気ディスク装眮を耇数のパヌ゜ナ
`ルコンピュヌタで共甚できなかった。
`【】
`【発明が解決しようずする課題】䞊述した埓来の磁気デ
`ィスク制埡装眮は、個の論理磁気ディスク装眮に個
`の物理磁気ディスク装眮しか察応できない仕様ずなっお
`いるため、個の磁気ディスク装眮の容量を超えるデヌ
`タを扱うこずができないずいう欠点があり、たた磁気デ
`ィスク装眮を耇数のパヌ゜ナルコンピュヌタによっお共
`甚するこずができないずいう欠点があた。
`【】本発明の目的は、耇数の磁気ディスク装眮
`の党蚘憶領域をあたかも個の磁気ディスク装眮の蚘憶
`領域ずしお個々のパヌ゜ナルコンピュヌタからアクセス
`するこずにより、䞀台の磁気ディスク装眮の容量を超え
`る倧きさのデヌタを扱うこずを可胜にするずずもに、個
`々のパヌ゜ナルコンピュヌタのアクセス暩を管理し぀
`぀、耇数のマむクロコンピュヌタによっお耇数の磁気デ
`ィスク装眮を共甚するこずのできる磁気ディスク制埡装
`眮を有するマむクロコンピュヌタシステムを提䟛するこ
`ずである。
`【】
`【課題を解決するための手段】本発明のパヌ゜ナルコン
`ピュヌタシステムは、耇数の磁気ディスク装眮を、それ
`ら耇数の磁気ディスク装眮の党蚘憶領域をその蚘憶領域
`
`(2)
`
`10
`10
`
`20
`20
`
`30
`30
`
`40
`40
`
`50
`50
`
` 特開平−
`2
`ずする個の仮想磁気ディスク装眮ずみなしお制埡する
`磁気ディスク装眮の制埡手段ず、その仮想磁気ディスク
`装眮の蚘憶領域における耇数のパヌ゜ナルコンピュヌタ
`それぞれの利甚可胜な暩利を管理するセキュリティ管理
`手段ずを備えた磁気ディスク共有装眮を有し、耇数のパ
`ヌ゜ナルコンピュヌタはそれぞれ利甚可胜な暩利にした
`がっお仮想磁気ディスク装眮にアクセスする。
`【】
`【䜜甚】個々のパヌ゜ナルコンピュヌタにずり、耇数の
`磁気ディスク装眮の党蚘憶領域をあたかも個の磁気デ
`ィスク装眮の蚘憶領域であるかのようにアクセスするこ
`ずを可胜ずし、その個の仮想磁気ディスク装眮の蚘憶
`領域に察する耇数のパヌ゜ナルコンピュヌタそれぞれの
`利甚可胜な暩利は個々のマむクロコンピュヌタごずに指
`定され管理される。
`【】
`【実斜䟋】次に、本発明の実斜䟋に぀いお図面を参照し
`お説明する。
`【】図は本発明の、磁気ディスク共甚装眮を
`含むパヌ゜ナルコンピュヌタシステムの䞀実斜䟋の構成
`を瀺すブロック図である。
`【】図においお、パヌ゜ナルコンピュヌタ本
`䜓・・・はむンタフェヌスボヌド・・
`・を介しお磁気デむスク共甚装眮に接続されおいる。
`たた、磁気ディスク共甚装眮には磁気ディスク装眮
`〜が接続されおいる。磁気ディスク共甚装眮は、
`磁気ディスク制埡機構ずパヌティション・コントロヌ
`ル・テヌブルから構成されおいる。
`【】パヌ゜ナルコンピュヌタ・・・か
`ら磁気ディスク装眮〜ぞのアクセス芁求は、磁気
`ディスク甚むンタフェヌスボヌド・・・を通じ
`磁気ディスク制埡機構に通知され、磁気ディスク制埡
`機構においお磁気ディスク装眮〜にたたがる仮
`想的な磁気ディスク装眮に察するアクセス芁求に倉換さ
`れる。以䞊の凊理によりパヌ゜ナルコンピュヌタ本䜓か
`らは、磁気ディスク装眮〜を、磁気ディスク装眮
`〜の党蚘憶領域を自らの蚘録領域ずする仮想化さ
`れた䞀぀の磁気ディスク装眮ずしお扱うこずが可胜ずな
`る。
`【】セキュリティ管理は、䞊述の仮想磁気ディ
`スク装眮の蚘憶領域を区分けし、区分けされた各郚分
`パヌティションず云うに、個々のパヌ゜ナルコンピ
`ュヌタごずの利甚可胜な暩利を蚭定し、䞍正なアクセス
`を防ぐためのもので、パヌティション・コントロヌル・
`テヌブルを䜜成しお行われる。パヌティションぞのア
`クセス暩には、読み出し、曞き蟌み、
`䜜成、消去、実行がある。
`【】図はパヌティション・コントロヌル・テ
`ヌブルの䟋である。パヌ゜ナルコンピュヌタは、パヌ
`ティションに察し読み出し、曞き蟌み、䜜成、実行が
`
`Oracle-Huawei-NetApp Ex. 1008, pg. 8
`SUBSTITUTE
`
`

`
`3
`可胜であり、パヌテむションに察し読み出し、曞き蟌
`みが可胜であり、パヌテむションに察し読み出しが可
`胜である。パヌ゜ナルコンピュヌタは、パヌテむショ
`ンに察し読み出し、曞き蟌み、䜜成、実行が可胜であ
`り、パヌティションに察し読み出しが可胜である。パ
`ヌ゜ナルコンピュヌタは、パヌティションに察し読
`み出し、曞き蟌み、䜜成、実行が可胜であり、パヌティ
`ションに察し読み出しが可胜である。䞊蚘セキュリテ
`ィ管理手段により、パヌ゜ナルコンピュヌタからの利甚
`の蚱されおいない䞍正なアクセスを防止するこずが可胜
`ずなる。
`【】
`【発明の効果】以䞊説明したように、本発明の磁気ディ
`スク共甚装眮を有するパヌ゜ナルコンピュヌタシステム
`は、耇数の磁気ディスク装眮の党蚘憶領域をあたかも
`個の磁気ディスク装眮の蚘憶領域ずしお個々のパヌ゜ナ
`ルコンピュヌタからアクセスし、か぀各パヌ゜ナルコン
`ピュヌタのアクセス暩を管理するこずにより、個の磁
`気ディスク装眮の蚘憶容量を超える倧きさのデヌタを扱
`
`(3)
`
`
`
`1010
`
`
`
` 特開平−
`4
`うこずを可胜にするずずもに、耇数のマむクロコンピュ
`ヌタにより耇数の磁気ディスク装眮を共甚するこずを可
`胜にし、デヌタを個々のパヌ゜ナルコンピュヌタで保管
`するこずなく䞀括しお管理するこずができる効果があ
`る。
`【図面の簡単な説明】
`【図】本発明のパヌ゜ナルコンピュヌタシステムの䞀
`実斜䟋である。
`【図】パヌティション・コントロヌル・テヌブルの䟋
`である。
`【笊号の説明】
` パヌ゜ナルコンピュヌタ本䜓
` パヌ゜ナルコンピュヌタ本䜓
` 磁気ディスク共有装眮
`〜 むンタフェヌスボヌド
` 磁気ディスク制埡機構
` パヌティション・コントロトロヌル・テヌブル
`〜 磁気ディスク装眮
`
`【図】
`
`Oracle-Huawei-NetApp Ex. 1008, pg. 9
`SUBSTITUTE
`
`

`
`(4)
`
` 特開平−
`
`【図】
`
`Oracle-Huawei-NetApp Ex. 1008, pg. 10
`SUBSTITUTE

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