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公开(公告)号：US08775753B2
公开(公告)日：2014-07-08
申请号：US12984489
申请日：2011-01-04
IPC分类号： G06F13/00
CPC分类号： G06F11/2064 , G06F11/2074 , G06F11/2082
摘要： An approach to synchronization of logical copy relationships on a local site with those on a remote site that is a mirror. A withdraw command is received on the local site for logical copy relationships between local source tracks and local target tracks. The withdraw command is executed and sent to a remote site buffer, from which it will be transferred to the remote site. Change indicators are set for the at least one local track in the affected logical copy relationships. If the withdraw command is lost from the remote site buffer, the remote site buffer will be rebuilt using the change indicators. By setting change indicators for local tracks in a withdrawn logical copy relationship (even if the data in local tracks hasn't changed), the remote counterparts to these tracks on the remote site will be rewritten, resulting in withdrawal of the logical copy relationship there even if the withdrawal command was never sent to the remote site.
摘要翻译： 本地站点上的逻辑复制关系与远程站点上的镜像同步的方法。 在本地站点上收到撤销命令，用于本地源轨道和本地目标轨道之间的逻辑复制关系。 执行撤销命令并将其发送到远程站点缓冲区，并将其从远程站点缓存传输到远程站点。 对受影响的逻辑副本关系中的至少一个本地磁道设置更改指示符。 如果提取命令从远程站点缓冲区丢失，则将使用更改指示器重建远程站点缓冲区。 通过在取消的逻辑复制关系中设置本地磁道的更改指示（即使本地磁道中的数据未更改），远程站点上的这些磁道的远程对应方将被重写，从而导致逻辑副本关系撤回 即使撤回命令从未发送到远程站点。
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公开(公告)号：US20120173830A1
公开(公告)日：2012-07-05
申请号：US12984489
申请日：2011-01-04
IPC分类号： G06F12/16
CPC分类号： G06F11/2064 , G06F11/2074 , G06F11/2082
摘要： An approach to synchronization of logical copy relationships on a local site with those on a remote site that is a mirror. A withdraw command is received on the local site for logical copy relationships between local source tracks and local target tracks. The withdraw command is executed and sent to a remote site buffer, from which it will be transferred to the remote site. Change indicators are set for the at least one local track in the affected logical copy relationships. If the withdraw command is lost from the remote site buffer, the remote site buffer will be rebuilt using the change indicators. By setting change indicators for local tracks in a withdrawn logical copy relationship (even if the data in local tracks hasn't changed), the remote counterparts to these tracks on the remote site will be rewritten, resulting in withdrawal of the logical copy relationship there even if the withdrawal command was never sent to the remote site.
摘要翻译： 本地站点上的逻辑复制关系与远程站点上的镜像同步的方法。 在本地站点上收到撤销命令，用于本地源轨道和本地目标轨道之间的逻辑复制关系。 执行撤销命令并将其发送到远程站点缓冲区，并将其从远程站点缓存传输到远程站点。 对受影响的逻辑副本关系中的至少一个本地磁道设置更改指示符。 如果提取命令从远程站点缓冲区丢失，则将使用更改指示器重建远程站点缓冲区。 通过在取消的逻辑复制关系中设置本地磁道的更改指示（即使本地磁道中的数据未更改），远程站点上的这些磁道的远程对应方将被重写，从而导致逻辑副本关系撤回 即使撤回命令从未发送到远程站点。
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