December 2002
Intermediate to advanced
260 pages
9h 18m
English
Content preview from Managing RAID on Linux
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Case 2: Usenet News
Striped arrays are clearly the best candidate for Internet news servers. Extremely fast read and write times are required to keep up with the enormous streams of data that a typical full-feed news server experiences. In many cases, the data on a news partition is inconsequential. Lost articles are frequent, even in normally operating feeds, and complete data loss usually means that only a few days’ articles are lost.
Administrators could configure a single news server with both a striped array and mirrored array, as shown in Figure 2-13. The striped array could house newsgroups that are of no consequence and could easily withstand a day’s worth of article loss without users complaining. Newsgroups that are read frequently, as well as local groups and system partitions, could be housed on the RAID-1 array. This would make the machine redundant in case of a disk failure.
Figure 2-13. A Usenet news server with both a striped and mirror
array.
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