Lesson plan

CacheFS

CacheFS is a family of software technologies designed to speed up distributed file system file access for networked computers. They store copies (caches) of files on secondary memory, typically a local hard disk, so that if a file is accessed again, it can be fetched locally at much higher speeds than networks typically allow. CacheFS software is used on several Unix-like operating systems. The original Unix version was developed by Sun Microsystems in 1993. Another version was written for Linux and released in 2003. Network filesystems are dependent on a network link and a remote server; obtaining a file from such a filesystem can be significantly slower than getting the file locally. For this reason, it can be desirable to cache data from these filesystems on a local disk, thus potentially speeding up future accesses to that data by avoiding the need to go to the network and fetch it again. The software has to check that the remote file has not changed since it was cached, but this is much faster than reading the whole file again.

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Article summary

CacheFS is a family of software technologies designed to speed up distributed file system file access for networked computers. They store copies (caches) of files on secondary memory, typically a local hard disk, so that if a file is accessed again, it can be fetched locally at much higher speeds than networks typically allow. CacheFS software is used on several Unix-like operating systems. The original Unix version was developed by Sun Microsystems in 1993. Another version was written for Linux and released in 2003. Network filesystems are dependent on a network link and a remote server; obtaining a file from such a filesystem can be significantly slower than getting the file locally. For this reason, it can be desirable to cache data from these filesystems on a local disk, thus potentially speeding up future accesses to that data by avoiding the need to go to the network and fetch it again. The software has to check that the remote file has not changed since it was cached, but this is much faster than reading the whole file again.

Key claims

  1. release date: 2003 — source: Wikipedia · confidence 0.95
  2. release date: 1993 — source: Wikipedia · confidence 0.95

Discussion questions

  1. Summarise the article in your own words. Which single claim would you verify first, and why?
  2. The record states that the release date is "2003". What evidence would count against this claim?
  3. The record states that the release date is "1993". What evidence would count against this claim?
  4. Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
  5. If two sources disagreed about one of these facts, what would you need in order to trust one over the other?

Bibliography

  1. Wikipedia https://en.wikipedia.org/w/index.php?oldid=1252475105

Key claims and bibliography are generated from the same tracked claims and sources as the article page.