注意subproblem方法没有复制这些元素；它只是将数组引用和偏移复制到一个现有的数据结构中。

Note that the subproblem method does not copy the elements; it merely copies the array reference and offsets into an existing data structure.

youdao

DB 2将数据写在512字节(HP - UX上是1024)的偏移位置上，这就是开始复制或者写入数据的位置。

DB2 places its data starting at the 512 byte offset (1024 on HP-UX) so this is where you should start copying from in the old location, and where you should start writing to in the new location.

youdao

典型的集群复制大概需要8秒钟左右，而我们允许1分钟的时间，以免系统时钟偏移。

A typical cluster replication is around eight seconds, and then we allow a minute more than that in case system clocks wander a bit.

youdao