Cassandra and RAIDs

2013-07-24 Thread Jan Algermissen
Hi, second question: is it recommended to set up Cassandra using 'RAID-ed' disks for per-node reliability or do people usually just rely on having the multiple nodes anyway - why bother with replicated disks? Jan

Re: Cassandra and RAIDs

2013-07-24 Thread Andrew Cobley
From: http://www.datastax.com/docs/1.2/cluster_architecture/cluster_planning * RAID on data disks: It is generally not necessary to use RAID for the following reasons: * Data is replicated across the cluster based on the replication factor you've chosen. * Starting in version 1.2,

Re: Cassandra and RAIDs

2013-07-24 Thread Richard Low
On 24 July 2013 15:36, Jan Algermissen jan.algermis...@nordsc.com wrote: is it recommended to set up Cassandra using 'RAID-ed' disks for per-node reliability or do people usually just rely on having the multiple nodes anyway - why bother with replicated disks? It's not necessary, due to