JPH0431491U - - Google Patents
Info
- Publication number
- JPH0431491U JPH0431491U JP7338590U JP7338590U JPH0431491U JP H0431491 U JPH0431491 U JP H0431491U JP 7338590 U JP7338590 U JP 7338590U JP 7338590 U JP7338590 U JP 7338590U JP H0431491 U JPH0431491 U JP H0431491U
- Authority
- JP
- Japan
- Prior art keywords
- track
- accessed
- magnetic disk
- host controller
- data
- 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
Links
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 8
Landscapes
- Signal Processing For Digital Recording And Reproducing (AREA)
- Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
- Management Or Editing Of Information On Record Carriers (AREA)
Description
第１図は本考案の実施例を示す磁気デイスク駆
動装置のブロツク図、第２図はトラツク変換テー
ブルの詳細図、第３図は磁気デイスクのトラツク
の構成図、第４図はバツフアメモリ内に設けたア
クセスカウンタを示す図、第５図はリロケート・
コマンドを実行する前のトラツク変換テーブル内
の状態図、第６図はアクセス回数の多いトラツク
を示す図、第７図はリロケート・コマンドを実行
した後のトラツク変換テーブル内の状態図、第８
図はリロケート・コマンドを実行した後のロジカ
ルトラツクナンバの配列を示す図、第９図はリロ
ケート・コマンドを実行する時のトラツク変換テ
ーブルの処理フロー図、第１０図は従来の磁気デ
イスク駆動装置のブロツク図である。
１……インタフエースコントローラ、２……イ
ンタフエースコントロールＣＰＵ、３……バツフ
ア（ＳＲＡＭ）メモリ、４……データセパレータ
、５……パルスデイテクタ、６……初段増幅器、
７……磁気ヘツド、８……スピンドルモータ、９
……磁気デイスク、１０……ボイスコイルモータ
、１１……スピンドルモータ駆動用ドライバ、１
２……ＶＣＭドライバ、１３……Ｄ／Ａコンバー
タ、１４……メカニズムコントロールＣＰＵ、１
５……ゲートアレイ、３１……トラツク変換テー
ブル、３２……アクセスカウンタテーブル。
Fig. 1 is a block diagram of a magnetic disk drive device showing an embodiment of the present invention, Fig. 2 is a detailed view of a track conversion table, Fig. 3 is a configuration diagram of tracks of a magnetic disk, and Fig. 4 is a block diagram of a track conversion table provided in a buffer memory. Figure 5 shows the relocated access counter.
Figure 6 is a state diagram of the track conversion table before the command is executed. Figure 6 shows the tracks that are accessed frequently. Figure 7 is the state diagram of the track conversion table after the relocate command is executed. Figure 8
The figure shows the arrangement of logical track numbers after executing the relocate command, Figure 9 is a processing flow diagram of the track conversion table when executing the relocate command, and Figure 10 is the diagram of a conventional magnetic disk drive. It is a block diagram. 1... Interface controller, 2... Interface control CPU, 3... Buffer (SRAM) memory, 4... Data separator, 5... Pulse detector, 6... First stage amplifier,
7...Magnetic head, 8...Spindle motor, 9
... Magnetic disk, 10 ... Voice coil motor, 11 ... Spindle motor drive driver, 1
2...VCM driver, 13...D/A converter, 14...mechanism control CPU, 1
5...Gate array, 31...Track conversion table, 32...Access counter table.
Claims (1)
ラツクごとのアクセス回数を計数する手段と、 (b) ホストコントローラからアクセスされない
磁気デイスクのエリアに上記トラツクごとのアク
セス回数を記憶する手段と、 (c) 上記磁気デイスクに記憶されたアクセス回
数を読み出して、アクセス回数が多いトラツク内
のデータを、ホストコントローラが指定したホー
ムポジシヨンに近いトラツクに入れ替え、アクセ
ス回数の少ないトラツク内のデータを、ホームポ
ジシヨンから遠いトラツクに入れ替える手段と、 (d) データの入替え前のトラツクナンバを入替
え後のトラツクナンバに変換するトラツクナンバ
変換手段を有することを特徴とする磁気デイスク
駆動装置。[Scope of Claim for Utility Model Registration] (a) Means for counting the number of accesses for each track accessed by the host controller; (b) Storing the number of accesses for each track in an area of a magnetic disk that is not accessed by the host controller. (c) reading out the number of accesses stored in the magnetic disk, replacing the data in the track that has been accessed a lot with a track that is close to the home position specified by the host controller, and replacing the data in the track that has been accessed a lot with a track that is close to the home position specified by the host controller; A magnetic disk drive device comprising: means for exchanging data to a track far from a home position; and (d) track number conversion means for converting a track number before the data is exchanged into a track number after the exchange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7338590U JPH0431491U (en) | 1990-07-12 | 1990-07-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7338590U JPH0431491U (en) | 1990-07-12 | 1990-07-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0431491U true JPH0431491U (en) | 1992-03-13 |
Family
ID=31612162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7338590U Pending JPH0431491U (en) | 1990-07-12 | 1990-07-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0431491U (en) |
-
1990
- 1990-07-12 JP JP7338590U patent/JPH0431491U/ja active Pending
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