> As soon as I've set up a file system with the drives I already have the only solution is to buy the same amount of drives with more space once I run out. Rec

> As soon as I've set up a file system with the drives I already have the only solution is to buy the same amount of drives with more space once I run out. Recent versions of zfs support raidz expansion [1], which let you add extra disks to a raidz1/2/3 pool. It has a number of limitations, for example you cannot change the type of pool (mirror to raidz1, raidz1 to raidz2 etc.) but if you plan to expand your pool one disk at a time it can be useful. Just remember that 1) old data will not take advantage of the extra disk until you copy it around and 2) the size of the pool is limited by the size of the smallest disk in the pool. [1] https://github.com/openzfs/zfs/pull/15022 https://github.com/openzfs/zfs/pull/15022