Hi all, Each of our N datanodes has attached two 3TB disks. I want to attach new *replacement* storage to each node, move the HDFS contents to the new storage, and remove the old volumes. We're using Hadoop 2.7.1.
1. What is the simplest, correct way to do this? Does hot-swapping move data from old disks to new disks? I am able to stop the cluster completely. 2. Is it reasonable to use LVM to create expandable logical volumes? We're using AWS and contemplating switching from SSDs to magnetic storage, which is limited to 1TB volumes. Thanks, Joe --------------------------------------------------------------------- To unsubscribe, e-mail: user-unsubscr...@hadoop.apache.org For additional commands, e-mail: user-h...@hadoop.apache.org
