How to minimize the number of writes to CF card?
matthew at FreeBSD.org
Tue Aug 25 10:13:32 UTC 2015
On 2015/08/25 10:58, zhup wrote:
> I am going to install Freebsd on CF card and my question is:
> how to minimize the number of writes to CF card?
Mount it read-only?
Less facetiously, make sure you mount any partitions or ZFSes on it with
atime=no -- otherwise it will attempt to update some file metadata every
time you /read/ a file.
Other than that, writing to the filesystem on your compact flash card
should only happen when you intentionally write to a file. This
includes using various applications that do things creating a temporary
save of a work in progress every few minutes so that you don't lose all
your work in the event of a crash.
Mind you, a good flash drive nowadays should have a lifetime at least
comparable to and in some cases better than a spinning hard drive.
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