公开(公告)号：WO1997018511A1

公开(公告)日：1997-05-22

申请号：PCT/US1996017263

申请日：1996-11-12

Applicant: MITSUBISHI CHEMICAL AMERICA, INC.

Inventor： MITSUBISHI CHEMICAL AMERICA, INC. ,  RAO, Mahesh, Chandra

IPC: G06F05/00

CPC classification number: G06F3/0601 ,  G06F12/0866 ,  G06F2003/0697

Abstract: A method and system for improving the transfer performance of a jukebox (30) containing multiple media (36), either single-sided or double-sided, which, although independent, act as a single contiguous drive or volume. By caching writes in one embodiment and caching reads and writes in another embodiment, performance increases by preventing unnecessary disc swapping between the drive or drives of the jukebox. In operation, writes to the media currently in the drive are written through to the media and writes to all other media are cached while the cache does not have a predetermined utilization. When the cache has the predetermined utilization, a different media is placed in the drive and any cached or pending writes for the newly inserted media are sent to the newly inserted media and any corresponding cache entries are cleared.

Abstract translation: 一种用于改进单点播机（30）的传送性能的方法和系统，所述自动存储器（30）包含单面或双面的多媒体（36），所述多媒体（36）尽管是独立的，但其作为单个连续的驱动器或音量。 通过在一个实施例中缓存写入并且在另一个实施例中缓存读取和写入，通过防止在自动存储器的驱动器或驱动器之间的不必要的盘交换来提高性能。 在操作中，当前在驱动器中的媒体的写入被写入到媒体中，并且对高速缓存没有预定利用率的所有其他媒体的写入被缓存。 当高速缓存具有预定的利用率时，将不同的媒体放置在驱动器中，并且用于新插入的媒体的任何高速缓存或挂起的写入被发送到新插入的媒体，并且任何相应的高速缓存条目被清除。

公开(公告)号：WO1996010790A1

公开(公告)日：1996-04-11

申请号：PCT/US1995011965

申请日：1995-09-28

Applicant: MITSUBISHI CHEMICAL AMERICA, INC.

Inventor： MITSUBISHI CHEMICAL AMERICA, INC. ,  RAO, Mahesh, C.

IPC: G06F13/00

CPC classification number: G06F3/0682 ,  G06F3/0607 ,  G06F3/0632 ,  G06F3/0674 ,  G11B20/10 ,  G11B20/12

Abstract: An intelligent controller (202) of a peripheral device such as a disk drive which stores utility algorithms (212). In a first embodiment, the utility algorithms are transferred from the peripheral device to a host computer (250) in order to eliminate the need to have utility software pre-loaded into the computer. In a second embodiment, the algorithm stored within the peripheral device is executed by processing circuitry within the peripheral device in order to free the host computer to perform other tasks as the utility is being executed by the peripheral device. Exemplary utilities which may be executed by the peripheral device include data compression, data format conversion, automatic disk error correction, back-up of the disk's file allocation table or other vital disk or file information into a secondary file allocation table (214) within the peripheral device, automatic file back-up or any other desired utility. A variation of the second embodiment performs stand-alone formatting of a disk to free up a host computer to perform other activities.

Abstract translation: 诸如存储效用算法（212）的磁盘驱动器的外围设备的智能控制器（202）。 在第一实施例中，效用算法从外围设备传送到主计算机（250），以便消除将实用软件预加载到计算机中的需要。 在第二实施例中，存储在外围设备内的算法由外围设备内的处理电路执行，以便当该实用程序由外围设备执行时释放主计算机执行其他任务。 可以由外围设备执行的示例性实用程序包括数据压缩，数据格式转换，自动磁盘错误校正，磁盘的文件分配表或其他重要磁盘或文件信息的备份到内部的辅助文件分配表（214）中 外围设备，自动文件备份或任何其他所需的实用程序。 第二实施例的变体执行盘的独立格式化以释放主计算机以执行其他活动。