Yes, Cassandra should keep percent of disk usage equal for all disk. Compaction process and SSTable flushes will use new disk to distribute both new and existing data.
Best regards, Vladimir Yudovin, Winguzone - Hosted Cloud Cassandra on Azure and SoftLayer. Launch your cluster in minutes. ---- On Mon, 17 Oct 2016 11:43:27 -0400Seth Edwards <s...@pubnub.com> wrote ---- We have a few nodes that are running out of disk capacity at the moment and instead of adding more nodes to the cluster, we would like to add another disk to the server and add it to the list of data directories. My question, is, will Cassandra use the new disk for compactions on sstables that already exist in the primary directory? Thanks!