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From: "Christopher Wirt" <chris.wirt@struq.com>
To: <user@cassandra.apache.org>
Subject: Multiple JBOD data directory
Date: Wed, 5 Jun 2013 10:32:58 +0100
Message-ID: <007801ce61cf$aaafde20$000f9a60$@struq.com>
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Hello, 

 
We're thinking about using multiple data directories each with its own disk
and are currently testing this against a RAID0 config.

 
I've seen that there is failure handling with multiple JBOD.

 
e.g. 

We have two data directories mounted to separate drives

/disk1

/disk2

One of the drives fails 

 
Will Cassandra continue to work?

How will it handle requests for data which unavailable?

If I want to add an additional drive what is the best way to go about
redistributing the data? 

 
Thanks,

Chris


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vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal>Hello, =
<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>We&#8217;re thinking about using multiple data =
directories each with its own disk and are currently testing this =
against a RAID0 config.<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>I&#8217;ve =
seen that there is failure handling with multiple JBOD.<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>e.g. =
<o:p></o:p></p><p class=3DMsoNormal>We have two data directories mounted =
to separate drives<o:p></o:p></p><p =
class=3DMsoNormal>/disk1<o:p></o:p></p><p =
class=3DMsoNormal>/disk2<o:p></o:p></p><p class=3DMsoNormal>One of the =
drives fails <o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>Will Cassandra continue to work?<o:p></o:p></p><p =
class=3DMsoNormal>How will it handle requests for data which =
unavailable?<o:p></o:p></p><p class=3DMsoNormal>If I want to add an =
additional drive what is the best way to go about redistributing the =
data? <o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>Thanks,<o:p></o:p></p><p =
class=3DMsoNormal>Chris<o:p></o:p></p></div></body></html>
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