MSI X2-109 v2 User Manual
Page 119

B-17
LSI SAS RAID
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 4.1, 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
1.
Figure 4.2 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.
9265v1.0-B(LSI SAS RAID).p65
2008/5/15, 上午 11:44
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