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From "Jeremiah Jordan" <JEREMIAH.JOR...@morningstar.com>
Subject RE: RAID or no RAID
Date Wed, 29 Jun 2011 19:13:46 GMT
With multiple data dirs you are still limited by the space free on any
one drive.  So if you have two data dirs with 40GB free on each, and you
have 50GB to be compacted, it won't work, but if you had a raid, you
would have 80GB free and could compact... 

-----Original Message-----
From: mcasandra [mailto:mohitanchlia@gmail.com] 
Sent: Tuesday, June 28, 2011 7:55 PM
To: cassandra-user@incubator.apache.org
Subject: Re: RAID or no RAID


aaron morton wrote:
> 
>> Not sure what the intended purpose is, but we've mostly used it as an

>> emergency disk-capacity-increase option
> 
> Thats what I've used it for.  
> 
> Cheers
> 

How does compaction work in terms of utilizing multiple data dirs? Also,
is there a reference on wiki somewhere that says not to use multiple
data dirs?


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