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From Alain RODRIGUEZ <>
Subject Re: Duplicating a cluster with different # of disks
Date Thu, 06 Aug 2015 20:31:23 GMT
Hi Gerard,

You should probably add a new datacenter following this procedure :

You will just have to make sure to configure all the nodes of the new nodes
to use mnt + mnt2 instead of mnt + mnt2 + mnt3.

Make sure to have enough space (disks / nodes) to handle your whole set of
data in the keyspace you want to load and it should be ok.

I think that this is the easiest approach, you don't need to care about
SSTable at all, Cassandra does it for you.



2015-08-06 18:50 GMT+02:00 Gerard Maas <>:

> Hi,
> I'm currently trying to duplicate a given keyspace on a new cluster to run
> some analytics on it.
> My source cluster has 3 disks and corresponding data directories (mnt,
> mnt2, mnt3) but the machines in my target cluster only have 2 disks (mnt,
> mnt2).
> What should be the correct procedure to copy the sstable data  from source
> to destination in this case?
> -kr, Gerard.

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