Total noob at database administration here, excuse my ignorance.
I have a server running a Rails application that’s using PostgreSQL. The database is saved on drive /z/, which seems to have filled up. I want to put a higher capacity drive and shift the database to that. How should I go about doing this? Should I copy the data folder from drive /z/ to the new drive and then change the config files (could someone point me to what config changes I need to make?)
Or could I copy the data folder to the new hard disk, and then mount the disk as /z/ and then I’ll need no config changes?
Or is there some helper commands in postgres that provide a functionality to migrate between disks?
I’m running Ubuntu 12.04.5 LTS. Output of version():
PostgreSQL 9.3.5 on x86_64-unknown-linux-gnu, compiled by gcc
(Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3, 64-bit