首页> 外国专利> DETERMINING SPACE TO RELEASE IN A TARGET VOLUME TO WHICH TRACKS FROM A SOURCE VOLUME ARE MIRRORED

DETERMINING SPACE TO RELEASE IN A TARGET VOLUME TO WHICH TRACKS FROM A SOURCE VOLUME ARE MIRRORED

机译:确定要复制到目标量的空间,以便从源量中跟踪

摘要

Provided are a computer program product, system, and method for determining space to release in a target volume to which tracks from a source volume are mirrored. A copy of a source volume table for the source volume providing a state of the tracks in the source volume for a consistency group is received. Tracks received from the source volume are written to the target volume to form the consistency group of tracks in the source volume at the target volume. A determination is made of tracks available to release from the copy of the source volume table and space allocated to the determined tracks is replaced. A point-in-time copy is created of the target volume for the consistency group. Complete is returned to forming the consistency group in response to releasing the space and creating the point-in-time copy.
机译:提供了一种计算机程序产品,系统和方法,该方法,系统和方法用于确定要释放的目标空间中的空间,源空间中的轨道已镜像到该空间中。接收源卷的源卷表的副本,该副本为一致性组提供源卷中轨道的状态。从源卷接收到的轨道被写入目标卷,以在目标卷上的源卷中形成轨道的一致性组。确定可从源卷表的副本释放的磁道,并替换分配给确定的磁道的空间。为一致性组创建了目标卷的时间点副本。响应于释放空间并创建时间点副本,将完成返回到形成一致性组。

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