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Re: File Systems Compared
- From: Florian Weimer <fweimer(at)bfk(dot)de>
- To: Brian Wipf <brian(at)clickspace(dot)com>
- Cc: pgsql-performance(at)postgresql(dot)org
- Subject: Re: File Systems Compared
- Date: Wed, 06 Dec 2006 17:44:23 +0100
- Message-id: <82bqmh3rfc(dot)fsf(at)mid(dot)bfk(dot)de>
* Brian Wipf: > Anyone run their RAIDs with disk caches enabled, or is this akin to > having fsync off? If your cache is backed by a battery, enabling write cache shouldn't be a problem. You can check if the whole thing is working well by running this test script: <http://brad.livejournal.com/2116715.html> Enabling write cache leads to various degrees of data corruption in case of a power outage (possibly including file system corruption requiring manual recover). -- Florian Weimer <fweimer(at)bfk(dot)de> BFK edv-consulting GmbH http://www.bfk.de/ Kriegsstraße 100 tel: +49-721-96201-1 D-76133 Karlsruhe fax: +49-721-96201-99
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