So you have to install a backup client on each Cassandra node. If the NetBackup client behaves like EMC Networker, beware the resources utilization (data deduplication, compression). You could have to boost CPUs and RAM (+2GB) of each nodes.
Try with one node: make a snapshot with nodetool and configure NetBackup so the backup client sends data to your tape library or virtual tape library. And of course, try to restore ;-) The tricky part is not Cassandra itself, it's to follow NetBackup (or whatever) best practices. "Camacho, Maria (NSN - FI/Espoo)" <maria.cama...@nsn.com> a écrit sur 12/06/2014 13:12:18 : > De : "Camacho, Maria (NSN - FI/Espoo)" <maria.cama...@nsn.com> > A : "user@cassandra.apache.org" <user@cassandra.apache.org>, > Date : 12/06/2014 13:12 > Objet : RE: Backup Cassandra to > > Hi, > Thanks for the quick response Romain. > > We would like to avoid using extra disk space, so no DAS/SAN. > We are more interested in achieving something like what is now being > done with Oracle – Symantec’s NetBackup is used to backup directly > to tape, no intermediate storage is needed. > > It could be NetBackup or whatever product supported by Cassandra > that writes the backup on tape without storing it on disk first. > > Regards, > Maria
