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    • 8. 发明申请
    • Method and Apparatus for Providing Continuous Access to Shared Tape Drives from Multiple Virtual Tape Servers Within a Data Storage System
    • 用于从数据存储系统内的多个虚拟磁带服务器连续访问共享磁带驱动器的方法和装置
    • US20090063748A1
    • 2009-03-05
    • US11846583
    • 2007-08-29
    • Keith A. BelloGregory T. KishiDuke A. Lee
    • Keith A. BelloGregory T. KishiDuke A. Lee
    • G06F3/06
    • G06F3/0664G06F3/0617G06F3/0622G06F3/0682G06F3/0686G06F11/2035G06F11/2097
    • A method for providing continuous access to shared tape drives from two virtual tape server (VTS) nodes is disclosed. A group of tape drives are connected to two VTS nodes via a set of switches. Both VTS nodes can concurrently process requests to mount physical tape cartridges to separate tape drives. The selection of a tape drive to fulfill a volume mount request on a physical volume begins by locking down any access to a tape drive table having a composite view of all the tape drives shared between the two VTS nodes. An available tape drive is then selected to mount the physical volume, and an entry in the tape drive table is updated to claim ownership of the tape drive. A reservation command is sent to the tape drive to lock down any access to the tape drive, and the lock to the tape drive table is released. Having claimed ownership to the tape drive, the VTS node can now perform the volume mount request.
    • 公开了一种用于从两个虚拟磁带服务器(VTS)节点提供对共享磁带驱动器的连续访问的方法。 一组磁带驱动器通过一组开关连接到两个VTS节点。 两个VTS节点可以同时处理将物理磁带盒安装到单独磁带机的请求。 通过锁定对具有在两个VTS节点之间共享的所有磁带驱动器的复合视图的磁带驱动器表的任何访问来开始选择在物理卷上实现卷安装请求的磁带驱动器。 然后选择可用的磁带驱动器来装载物理卷,并更新磁带驱动器表中的条目以声明磁带驱动器的所有权。 将预留命令发送到磁带机,以锁定对磁带机的访问,并释放对磁带机表的锁定。 已经声明对磁带驱动器的所有权,VTS节点现在可以执行卷安装请求。
    • 9. 发明授权
    • Apparatus and method to form one or more premigration aggregates comprising a plurality of least recently accessed virtual volumes
    • 用于形成包括多个最近最少访问的虚拟卷的一个或多个预迁移聚合的装置和方法
    • US06938120B2
    • 2005-08-30
    • US10230684
    • 2002-08-29
    • Kevin L. GibbleGregory T. Kishi
    • Kevin L. GibbleGregory T. Kishi
    • G06F3/06G06F12/00G06F12/08G06F17/40
    • G06F3/0611G06F3/0649G06F3/0686
    • A method to form one or more premigration aggregates comprising a plurality of least recently accessed virtual volumes disposed in an information storage medium. The method determines the number (R) of virtual volumes to remove from the information storage medium, selects the (R) least recently accessed virtual volumes, forms one or more premigration aggregates comprising those least recently accessed virtual volumes, and assigns each of the (R) selected virtual volumes to one of those premigration aggregates. The method establishes a minimum transfer size and determines if any of the premigration aggregates are larger than that minimum transfer size. The method writes to one or more physical volumes each of the premigrate aggregates that are larger than the minimum transfer size. Thereafter, the method removes from the information storage medium each of the premigration aggregates written to physical volumes.
    • 一种形成一个或多个预迁移聚合的方法,包括设置在信息存储介质中的多个最近访问的虚拟卷。 该方法确定要从信息存储介质中删除的虚拟卷的数量(R),选择(R)最近最近访问的虚拟卷,形成包括那些最近访问的虚拟卷的一个或多个预迁移聚合,并且分配( R)将选定的虚拟卷添加到这些迁移聚合之一。 该方法建立最小传输大小,并确定任何预迁移聚合是否大于最小传输大小。 该方法写入一个或多个物理卷,每个预转换聚合大于最小传输大小。 此后,该方法从信息存储介质中删除写入物理卷的每个预迁移聚合。
    • 10. 发明申请
    • Reducing a Backup Time of a Backup of Data Files
    • 减少备份数据文件的备份时间
    • US20120254117A1
    • 2012-10-04
    • US13078413
    • 2011-04-01
    • Gregory T. KishiSven Oehme
    • Gregory T. KishiSven Oehme
    • G06F12/16G06F17/30
    • G06F17/30091G06F11/1451G06F11/1464
    • A mechanism is provided for reducing the backup time of data files from a memory. Data files are pre-staged by identifying the data files in the memory to be backed up to a backup storage system, sorting the data files by size thereby forming a set of small data files and a set of large data files, and copying the set of small data files to a cache while leaving the set of large data files in a disk subsystem. The set of small data files are then backed-up from the cache and the set of large data files are backed-up from the disk subsystem to a backup storage system. Thus, the time required to backup the set of small data files from the cache is performed at a faster rate as compared to backing up the set of large data files from the disk subsystem.
    • 提供了一种减少数据文件从存储器的备份时间的机制。 数据文件通过识别要备份到备份存储系统的内存中的数据文件进行预分类,按尺寸对数据文件进行排序,从而形成一组小数据文件和一组大数据文件,并复制集 将小数据文件导出到高速缓存,同时将一组大型数据文件留在磁盘子系统中。 然后从缓存中备份一组小型数据文件,并将大量数据文件集从磁盘子系统备份到备份存储系统。 因此,与从磁盘子系统备份一组大型数据文件相比,从缓存中备份一组小数据文件所需的时间以更快的速度执行。