[Soekris] CompactFlash and their length of life

Poul-Henning Kamp phk at phk.freebsd.dk
Fri Jul 15 17:14:56 UTC 2005


In message <20050715.093729.74737141.imp at bsdimp.com>, Warner Losh writes:
>> > However, most CF parts are good for more like 10M or 100M writes to
>> > the part, since the limits are per cell and there are wear averaging
>> > that happens
>> 
>> Is this true for all CF cards?
>
>Yes.  All CF parts do wear averaging.  Many in the past have come with
>a million picture guarantee, which translates to approximately 10M
>writes.

Caution is necessary here.

Cameras write in large sequential chunks and hint the wear leveling
in the CF card.

Filesystems don't.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.



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