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From "Stan Bradbury (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (DERBY-5691) Recommend disabling Write Caching for on Windows
Date Mon, 16 Apr 2012 21:02:16 GMT
Recommend disabling Write Caching  for on Windows

                 Key: DERBY-5691
                 URL: https://issues.apache.org/jira/browse/DERBY-5691
             Project: Derby
          Issue Type: Improvement
          Components: Documentation
         Environment: Microsoft Windows
            Reporter: Stan Bradbury

Suggestion that we document a recommendation that Windows Write Caching be disabled on machines
using Derby.

The following article warns about Write Caching on Windows as a possbile source of database
It is possible that this could be the cause of some unexplained Derby corruptions identified
after power failure of other system interupt.

Links explaining how to disable Write Caching:
  Win 2K: http://support.microsoft.com/kb/259716
   Win 2008: http://support.microsoft.com/kb/324805

>From the Windows 2008 article:
With some third-party programs, disk write caching has to be turned on or off. Additionally,
turning disk write caching on may increase operating system performance; however, it may also
result in the loss of information if a power failure, equipment failure, or software failure
occurs. This article describes how to turn disk write caching on or off.

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