Chapter-12-The Vinum Volume Manager

Chia sẻ: Vinh Nghi | Ngày: | Loại File: PDF | Số trang:22

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Chapter-12-The Vinum Volume Manager

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The way the data is shared across the drives has a strong influence on performance. It’s convenient to think of the disk storage as a large number of data sectors that are addressable by number, rather like the pages in a book. The most obvious method is to divide the virtual disk into groups of consecutive sectors the size of the individual physical disks and store them in this manner, rather like the way a large encyclopaedia is divided into a number of volumes. This method is called concatenation, and sometimes JBOD (Just a Bunch Of Disks). It works well when the access to the virtual...

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