Batching data objects for recording on optical disks with maximum object
count
    1.
    发明授权
    Batching data objects for recording on optical disks with maximum object count 失效
    在数据对象数量最多的光盘上批量记录数据

    公开(公告)号:US4974197A

    公开(公告)日:1990-11-27

    申请号:US464684

    申请日:1990-01-16

    IPC分类号: G06F3/06 G06F12/08 G06F17/30

    摘要: Image data objects are accumulated in a relatively rapid access data buffer, such as a combination of main memory and a rapid access magnetic DASD. An optical disk recorder having a record medium with a plurality of addressable sectors each capable of storing a predetermined number of the VTOC entries receives the accumulated data objects along with the associated VTOC entries in a single access whenever the number of accumulated data objects is an inegral number of said predetermined number. A lower threshold for a minimal number of data bytes of the accumulated data objects may be required before such single access data recording operation is effected. An upper threshold of number of data bytes in the accumulated objects is also provided for causing the single access data transfer irrespective of the number of objects being an integral number of said predetermined number. The invention is advantageously practiced with a write-once, read-many record medium.

    摘要翻译: 图像数据对象被累积在相对快速的访问数据缓冲器中,例如主存储器和快速访问磁DASD的组合。 具有具有多个可寻址扇区的记录介质的光盘记录器,每当能够存储预定数量的VTOC条目时,只要累积的数据对象的数目是一个单一的访问,则在一个访问中接收累积的数据对象以及相关联的VTOC条目 所述预定数量的数量。 在进行这种单次访问数据记录操作之前,可能需要累积数据对象的最小数量的数据字节的下限阈值。 还提供累积对象中的数据字节数的上限阈值,用于使得单个访问数据传送,而不管对象数是所述预定数量的整数。 本发明有利地用一次写入的多读记录介质实现。

    Method of managing data in a data storage hierarchy and a data storage
hierarchy therefor with removal of the least recently mounted medium
    2.
    发明授权
    Method of managing data in a data storage hierarchy and a data storage hierarchy therefor with removal of the least recently mounted medium 失效
    管理数据存储层级中的数据和数据存储层级的方法,同时移除最近最少安装的介质

    公开(公告)号:US4987533A

    公开(公告)日:1991-01-22

    申请号:US190739

    申请日:1988-05-05

    摘要: A method for managing data in a data storage hierarchy, and a data storage hierarchy suitable therefor, is disclosed. The data storage hierarchy includes an optical library and separate manually operated shelf storage. The optical library includes at least one optical disk drive and a plurality of storage cells for the storage of optical disks. The optical library also includes automatic means for transferring optical disks from the storage cells to the optical disk drives in the library. The host processor, upon determining that particular data is required to be stored in the optical library, first checks to determine if the optical disks in the optical library currently have the capacity for the storage of such data. If the capacity exists in the optical library there is no problem and the data is stored therein. If the optical library does not have the required capacity, or if the system operator so requires, the optical disk in the optical library which has least recently been mounted on an optical disk drive therein is destaged from the optical library to the manually operated shelf storage. Another disk may then be fed into the optical library for the storage of the data required therein.

    摘要翻译: 公开了一种用于管理数据存储层级中的数据的方法和适用于其的数据存储层级。 数据存储层级包括光学库和单独的手动操作的货架存储。 光学库包括至少一个光盘驱动器和用于存储光盘的多个存储单元。 光学库还包括用于将光盘从存储单元传送到库中的光盘驱动器的自动装置。 主机处理器在确定特定数据需要存储在光学库中时首先检查以确定光学库中的光盘当前是否具有用于存储这种数据的能力。 如果光学库中存在容量,则没有问题并且数据存储在其中。 如果光学库不具有所需的容量,或者如果系统操作者这样要求,则最近安装在其中的光盘驱动器中的光学库中的光盘从光学库迁移到手动操作的存储架 。 然后可以将另一个盘送入光学库以存储其中所需的数据。