Messages in this thread | ![/](/images/icornerl.gif) | | From | "Oliver S." <> | Subject | questions regarding Journalling-FSes and w-cache reordering | Date | Wed, 9 Apr 2003 21:33:20 +0200 |
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I've got a question regarding the behaviour of w-caches with ATA-harddisks: Is a ATA-harddisk allowed to reorder the operations from in w-cache ? On one side, this would be an opportunity to optimize head-movements (although a good cyclical-scan drive-scheduler would gain the same if it can rely on a linear sector-mapping), but on the other side, this would compromise the two-phase commiting of journalling FSes and render it useless. So I doubt that reorder- ing is allowed with ATA-HDs. Are my assumptions right ?
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