Messages in this thread | | | Date | Thu, 19 Sep 2002 16:04:24 -0700 | From | Andrew Morton <> | Subject | Re: ext3 fs: no userspace writes == no disk writes ? |
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Rob van Nieuwkerk wrote: > > Hi all, > > I have a question about ext3 write activity. > > I am considering using an ext3 fs on a CompactFlash disk for my > data-logging application (power can disapear anytime). > The quantity & frequency of the data logged itself is not a > problem at all considering flash wear. > > But I'm a bit worried about the kernel/ext3 doing regular writes > by itself even when there are no userspace writes. (worries are > partially caused by memories from long time ago about idle laptop > doing regular writes on disk).
Should be OK - it's a matter of careful monitoring and tuning of system activity.
There are frequently written areas of an ext3 filesystem - the journal, the superblock. Those would wear out pretty quickly.
Increasing the commit interval to the maximum acceptable time would reduce some of this wear and tear.
There seems to be some interest in doing this. Might be helpful to ask on ext3-users: https://listman.redhat.com/mailman/listinfo/ext3-users - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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