Knut Anders Hatlen wrote:
This is true, but many systems have enabled the write cache on the hard drive. This means that although Derby and the OS think the data have been written to non-volatile storage, they may still reside in the volatile write cache on the disk and can be lost in a power outage.
Linux & Windows run with the write cache turned on by default. Solaris runs with it turned off by default under UFS, ZFS *may* enable it, depending on if it is safe to do so or not.
http://weblogs.java.net/blog/davidvc/archive/2005/10/the_story_of_th.html -- Alan Burlison --
