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From Dan Kuebrich <>
Subject Re: RAID or no RAID
Date Tue, 28 Jun 2011 03:55:58 GMT
Not sure what the intended purpose is, but we've mostly used it as an
emergency disk-capacity-increase option.  It's not as good as raid because
each disk size is counted individually (a compacted sstable can only be on
one disk) so compaction size limits aren't expanded as one might expect.

On Mon, Jun 27, 2011 at 11:30 PM, mcasandra <> wrote:

> I thought there is an option to give multiple data dirs in cassandra.yaml.
> What's the purpose of that?
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