因此，如果希望只存储一个字节，且试图在未对齐的地址直接存储，那么它就会进入到不正确的位置并会截断四字内剩余的字节。
Therefore, if you want to store only one byte, if you tried to do it directly on an unaligned address, it would both go into the wrong location and clobber the remaining bytes in the quadword.
直接内存存取(direct memory access, DMA)引擎执行了第一次拷贝(参见图1)，它从磁盘中读取文件内容，然后将它们存储到一个内核地址空间缓存区中。
The first copy (see Figure 1) is performed by the direct memory access (DMA) engine, which reads file contents from the disk and stores them into a kernel address space buffer.
它还提供一些附加功能，可直接管理IBM Cloud平台上的资源；例如，它可帮您管理实例、地址、存储卷和映像。
Some additional functions are provided to directly manage the resources on the IBM Cloud platform; for example, it can help you manage instances, addresses, volumes, and images.
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