Niclas, Here is Jeff's comment regarding this: https://stackoverflow.com/a/31690279
________________________________ From: Niclas Hedhman <nic...@apache.org> Sent: Friday, March 9, 2018 9:09:53 AM To: user@cassandra.apache.org; Rahul Singh Subject: Re: Adding disk to operating C* I am curious about the side comment; "Depending on your usecase you may not want to have a data density over 1.5 TB per node." Why is that? I am planning much bigger than that, and now you give me pause... Cheers Niclas On Wed, Mar 7, 2018 at 6:59 PM, Rahul Singh <rahul.xavier.si...@gmail.com<mailto:rahul.xavier.si...@gmail.com>> wrote: Are you putting both the commitlogs and the Sstables on the adds? Consider moving your snapshots often if that’s also taking up space. Maybe able to save some space before you add drives. You should be able to add these new drives and mount them without an issue. Try to avoid different number of data dirs across nodes. It makes automation of operational processes a little harder. As an aside, Depending on your usecase you may not want to have a data density over 1.5 TB per node. -- Rahul Singh rahul.si...@anant.us<mailto:rahul.si...@anant.us> Anant Corporation On Mar 7, 2018, 1:26 AM -0500, Eunsu Kim <eunsu.bil...@gmail.com<mailto:eunsu.bil...@gmail.com>>, wrote: Hello, I use 5 nodes to create a cluster of Cassandra. (SSD 1TB) I'm trying to mount an additional disk(SSD 1TB) on each node because each disk usage growth rate is higher than I expected. Then I will add the the directory to data_file_directories in cassanra.yaml Can I get advice from who have experienced this situation? If we go through the above steps one by one, will we be able to complete the upgrade without losing data? The replication strategy is SimpleStrategy, RF 2. Thank you in advance --------------------------------------------------------------------- To unsubscribe, e-mail: user-unsubscr...@cassandra.apache.org<mailto:user-unsubscr...@cassandra.apache.org> For additional commands, e-mail: user-h...@cassandra.apache.org<mailto:user-h...@cassandra.apache.org> -- Niclas Hedhman, Software Developer http://zest.apache.org - New Energy for Java
