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Is it possible to define a limit for how much space W3 Total Cache is allowed to use?

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No, it is not... –  vancoder Jun 28 '13 at 16:45
by space I assume you mean disk space? –  birgire Oct 9 '13 at 12:54

2 Answers 2

There is no option to do this in the plugin.

It is suggested to run page cache garbage collection more frequently on high traffic sites. I expect this would keep the size of cache on disk to a reasonable amount.

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Yes -- also cache fewer pages/objects, decrease object lifetime/TTL. –  sam Oct 25 '13 at 20:59

You can't set quota for a directory unless it's properly mounted as a partition. Please see the following link to understand how that works


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Thanks for the answer, unfortunately this doesn't help as the current situation involved a shared host for me. –  Vince Pettit Oct 14 '13 at 16:01

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