Uniwide Technologies UniServer 1522 Guide de l'utilisateur télécharger pdf (Page 83)

5.2.4.3 IS Description

The IS feature writes data across multiple disks instead of onto one disk. This is accomplished by

partitioning each disk’s storage space into 64 Kbyte stripes. These stripes are interleaved round-robin, so

that the combined storage space is composed alternately of stripes from each disk.

For example, as shown in Figure, segment 1 is written to disk 1, segment 2 is written to disk 2, segment 3

is written to disk 3, and so on. When the system reaches the end of the disk list, it continues writing data

at the next available segment of disk

Below Figure shows a logical view and a physical view of Integrated Striping configuration.

The primary advantage of IS is speed, because it transfers data to or from multiple disks at once. However,

there is no data redundancy; therefore, if one disk fails, that data is lost.

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Uniwide Technologies UniServer 1522 Guide de l'utilisateur Page 83