公开(公告)号：US20050114566A1

公开(公告)日：2005-05-26

申请号：US10719536

申请日：2003-11-20

申请人： James Chen ,  Olympia Gluck ,  Gabriel Walder ,  Yelena Zilberstein ,  Warren Stanley ,  Edward Lin

发明人： James Chen ,  Olympia Gluck ,  Gabriel Walder ,  Yelena Zilberstein ,  Warren Stanley ,  Edward Lin

IPC分类号： G06F3/00 ,  G06F3/06

CPC分类号： G06F3/065 ,  G06F3/0626 ,  G06F3/0689 ,  G06F11/201 ,  G06F11/2066 ,  G06F11/2076

摘要： Methods, system and computer program product are provided to improve the efficiency of data transfers in a PPRC environment. A block of data to be transferred is divided into tracks. Each track is allocated to a data mover task control block (TCB) with a master TCB being assigned to supervise the data mover TCBs. The tracks are then transferred from the primary storage controller to the secondary controller in a piped fashion over a link coupling the primary and secondary storage controllers. However, the usage of resources is monitored by a resource management algorithm and, if too many TCBs are being used for a transfer or if the supply of data mover TCBs is exhausted, the transfer is automatically switched to a serial, non-piped transfer with the master TCB serving as the data mover TCB for the remaining tracks. In addition, the various links coupling the primary and secondary storage controllers is monitored to determine which link will provide the fastest transfer. If, during a transfer of tracks over one link, a faster link is identified, the transfer may be switched to the second, faster link.

摘要翻译： 提供了方法，系统和计算机程序产品，以提高PPRC环境中数据传输的效率。 要传输的数据块被划分为轨道。 每个轨道被分配给数据移动器任务控制块（TCB），其中主TCB被分配以监视数据移动器TCB。 然后，通过连接主存储控制器和辅助存储控制器的链路，将轨道以管道方式从主存储控制器传送到次级控制器。 然而，资源的使用通过资源管理算法进行监控，如果太多的TCB被用于传输，或者如果数据移动器TCB的供应耗尽，则传输将自动切换到串行，非管道传输， 主TCB用作剩余磁道的数据移动器TCB。 此外，监视耦合主存储控制器和辅助存储控制器的各种链路，以确定哪个链路将提供最快的传输。 如果在通过一个链路传送轨道的过程中识别出更快的链路，则可以将传输切换到第二个更快的链路。

公开(公告)号：US07065623B2

公开(公告)日：2006-06-20

申请号：US10719536

申请日：2003-11-20

申请人： James C. Chen ,  Olympia Gluck ,  Gabriel G. Walder ,  Yelena Zilberstein ,  Warren K. Stanley ,  Edward H. Lin

发明人： James C. Chen ,  Olympia Gluck ,  Gabriel G. Walder ,  Yelena Zilberstein ,  Warren K. Stanley ,  Edward H. Lin

IPC分类号： G06F12/00

CPC分类号： G06F3/065 ,  G06F3/0626 ,  G06F3/0689 ,  G06F11/201 ,  G06F11/2066 ,  G06F11/2076

摘要： Methods, system and computer program product are provided to improve the efficiency of data transfers in a PPRC environment. A block of data to be transferred is divided into tracks. Each track is allocated to a data mover task control block (TCB) with a master TCB being assigned to supervise the data mover TCBs. The tracks are then transferred from the primary storage controller to the secondary controller in a piped fashion over a link coupling the primary and secondary storage controllers. However, the usage of resources is monitored by a resource management algorithm and, if too many TCBs are being used for a transfer or if the supply of data mover TCBs is exhausted, the transfer is automatically switched to a serial, non-piped transfer with the master TCB serving as the data mover TCB for the remaining tracks. In addition, the various links coupling the primary and secondary storage controllers is monitored to determine which link will provide the fastest transfer. If, during a transfer of tracks over one link, a faster link is identified, the transfer may be switched to the second, faster link.

摘要翻译： 提供了方法，系统和计算机程序产品，以提高PPRC环境中数据传输的效率。 要传输的数据块被划分为轨道。 每个轨道被分配给数据移动器任务控制块（TCB），其中主TCB被分配以监视数据移动器TCB。 然后，通过连接主存储控制器和辅助存储控制器的链路，将轨道以管道方式从主存储控制器传送到次级控制器。 然而，资源的使用通过资源管理算法进行监控，如果太多的TCB被用于传输，或者如果数据移动器TCB的供应耗尽，则传输将自动切换到串行，非管道传输， 主TCB用作剩余磁道的数据移动器TCB。 此外，监视耦合主存储控制器和辅助存储控制器的各种链路，以确定哪个链路将提供最快的传输。 如果在通过一个链路传送轨道的过程中识别出更快的链路，则可以将传输切换到第二个更快的链路。