Striping
条带化（striping） 在 CS 领域是指将逻辑上顺序的文件切分为相同大小的段，相邻的段存储在不同的物理设备上。通过这种方式增加并发以增加数据访问吞吐量，同时平衡 I/O 负载。
With multiple disks, we can improve the transfer rate as well (or instead) by striping data across multiple disks. In its simplest form, data striping consists of splitting the bits of each byte across multiple disks; such striping is called bit-level striping.[1]
In computer data storage, data striping is the technique of segmenting logically sequential data, such as a file, so that consecutive segments are stored on different physical storage devices.
Striping is useful when a processing device requests data more quickly than a single storage device can provide it. By spreading segments across multiple devices which can be accessed concurrently, total data throughput is increased. It is also a useful method for balancing I/O load across an array of disks.[2]
Silberschatz, Abraham, Henry F. Korth, and S. Sudarshan. Database System Concepts. Seventh edition. New York, NY: McGraw-Hill, 2020. ↩︎