tape library

Application of Virtual Magnetic Tape Library Technology in Data Backup System

虚拟磁带库技术在数据备份系统中的应用

I/ O requests for scheduling in tertiary storage devices, such as a tape library, are one of the key problems in hierarchical storage systems. Although there are many scheduling algorithms, few give a quantitative method to evaluate different algorithms.

I/O请求的调度是层次存储研究中的重要问题，目前也有很多的调度算法，但它们之间缺乏定量的分析和对比，使得调度算法的选择缺少可靠的依据。

Improving its random access performance is therefore crucial for the design of magnetic tape library storage system.

提高磁带的随机存取性能已成为提高磁带库存储系统性能的关键。

The terabyte-level ( 1012 bytes) database systems such as digital libraries need to use tape library as an online device to store and retrieve their massive data.

诸如数字图书馆等规模在1012字节以上的大型数据库需要在线存取大容量磁带库中的海量数据。

To meet these two challenges, this paper had a thorough investigation of mass storage system architecture and polices of disk cache and tape library I/ O scheduling to improve the efficiency of tape libraries.

针对这两个问题，论文研究了海量层次存储系统的体系结构以及提高三级存储设备性能的磁盘缓存和磁带库I/O调度等策略。

This algorithm improves the performance of tape library system under different workloads by dynamically tuning the cost-benefit weight ratio of scheduling policies according to workloads.

该算法根据系统的工作负载特点，动态调节调度的效益和代价的加权比，从而改善了磁带库系统在各种负载下的系统性能。

The main contents of this dissertation are as follows: According to properties of the interface and data storing in geological exploration, a storage system based on Virtual Tape Library was proposed.

论文主要内容包括：针对地质勘探中的接口和数据存储特点，构建了基于虚拟磁带库的存储系统。

Later, we establish a local tape library system in the production center and set up long-distance& local VTL backup systems in the backup center.

在生产中心建立本地磁带库备份系统，在备份中心建立异地虚拟磁带库备份系统和本地虚拟磁带库备份系统。

With the commercial product, the default set-up is to have a server-to-client mechanism where the clients are backed up to the server either to the disk, typically a SAN file-system, or to a tape library.

对于这种商业产品，默认设置是采用服务器到客户端的机制，客户端被备份到服务器，可能是备份到磁盘（通常是一种SAN文件系统），也可能是备份到磁带库。

4MM library-Define the4MM tape drive in a manual tape library

4MM库&在手动磁带库中定义4MM磁带驱动器

Control Layer let users easily interact is virtual tape library, and carry onthe related operation.

Control Layer让用户方便地是虚拟磁带库进行交互，对其进行相关操作。

Remote Storage copies the data in infrequently used files from your managed volumes to remote storage media, such as an automated tape library

远程存储将不常用文件中的数据从被管理卷复制到远程存储媒体，如自动磁带库

The Implementation of Virtual Tape Library Based on Hospital Data Backup and Disaster Recovery Programs

基于虚拟磁带库的医院数据备份容灾方案及其实现

Research on the Application Performance of the Amorphous Co-based Composite Tape Used in Library

非晶钴基复合磁条在图书馆的应用性能研究

In this paper, we introduce the development and scheme of virtual magnetic tape library backup technology, and also analyse its characteristic and compare its advantage with other former technology.

本文介绍了近年较为热门的虚拟磁带库备份技术的发展情况和实现方法，并对比目前的其他存储备份技术对其特点和优势进行了分析。

A tape library is provided with a fixed coupling mechanism so that the tape library includes discrete locations via which power and communication are provided to an accessor.

一种磁带库提供有固定耦合装置，使得该磁带库包括经由其电源和通信被提供给存取器的离散位置。

Based-on tape library storage system in digital video library

基于磁带库的数字视频图书馆存储系统

Through the redundancy architecture of the SAN, the RAID ADG storage system, the backup system of the tape library, the cluster or multi-host of the key server, realizes the environment of the data.

通过采用冗余的SAN基础结构、支持RAIDADG的存储系统、磁带库备份系统、关键服务器集群或多机方式、单键灾难恢复技术，构造了一个满足集成制造单元信息系统应用需求的基础数据环境。

Random I/ O Scheduling Algorithms in Online Tape Library Systems

磁带库系统的随机I/O调度算法

The paper proposes the fully automatic concentrating type backup scheme based on tape library.

文章提出了基于磁带库的全自动集中式备份方案。

Since the access of a tape library is often random and the tape library has low random access performance, thus it is critical to study the random I/ O scheduling strategies and algorithms in order to improve the performance of tape library.

由于这些需求都是对海量数据的随机存取，而磁带库的随机存取性能很差，所以，研究有效的磁带库随机I/O调度策略和算法是改善磁带库系统性能的重要课题。

A Cost-Benefit-Based Scheduling Algorithm of Online Tape Library

一种基于效益-代价均衡的磁带库调度算法

This dissertation introduces a Read only RAID and Tape library storage system using disk as the cache of tape, and makes further studies on improving its random access performance.

本文介绍了一种采用磁盘作为磁带库缓存的只读磁盘-磁带库存储系统，并对该系统进行了深入的研究，探索提高随机存取性能的途径和方法。

Since the tape libraries have very poor random access performance, it is critical to study random I/ O scheduling strategies and algorithms in order to improve the performance of tape library.

由于磁带库随机存取的性能很差，需要研究有效的随机I/O调度策略和算法以改善其在线存取的效率。