DB2 has a very efficient and optimized backup utility that multiplexes the data pages it reads from the database and writes them to the target device in a randomized order.

DB2有一个非常高效的备份实用程序，它可以将从数据库读出的数据页分成多个部分，并以随机的顺序将它们写到目标设备。

youdao

Be careful though; the OS usually writes its own metadata to the beginning of a raw device, and you don't want to copy that.

不过要注意，OS通常将自己的元数据写在原始设备的开头，这些内容是不需要复制的。

youdao

This minimizes the number of small writes that are presented to the device, which in turn optimizes performance and helps extend the usable life of the drives.

这样能够减少设备的小型写操作的数量，从而优化了性能，并且有利于延长设备寿命。

youdao

"In many parts of the world, more people have access to a mobile device than to a toilet or running water, " she writes.

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The new 12 Gbps specification will eventually allow the host system to decide how much power a storage device with the interface should use, allowing up 25 W. It will also allow atomic writes, which will improve system performance as well as providing more resilient system designs.

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