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From Jeff Jirsa <>
Subject Re: Duplicating a cluster with different # of disks
Date Thu, 06 Aug 2015 20:41:31 GMT
You can copy all of the sstables into any given data directory without issue (keep them within
the keyspace/table directories, but the mnt/mnt2/mnt3 location is irrelevant).

You can also stream them in via sstableloader if your ring topology has changed (especially
if tokens have moved)

From:  Gerard Maas
Reply-To:  ""
Date:  Thursday, August 6, 2015 at 9:50 AM
To:  ""
Subject:  Duplicating a cluster with different # of disks


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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