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I recently created a raidz of four 2TB-disks and moved a bunch of movies onto them. And then I noticed that I''ve somehow lost a full TB of space. Why? nebol at filez:/$ zfs list tank2 NAME USED AVAIL REFER MOUNTPOINT tank2 3.12T 902G 32.9K /tank2 nebol at filez:/$ zpool list tank2 NAME SIZE USED AVAIL CAP HEALTH ALTROOT tank2 5.44T 4.18T 1.26T 76% ONLINE - I know that ZFS needs space for meta-data, but a full TB ??? -- This message posted from op...

Hi, quoting from zfs docs "The SPA allocates blocks in a round-robin fashion from the top-level vdevs. A storage pool with multiple top-level vdevs allows the SPA to use dynamic striping to increase disk bandwidth. Since a new block may be allocated from any of the top-level vdevs, the SPA implements dynamic striping by spreading out writes across all available top-level vdevs" Now,

I currently have a 7x1.5tb raidz1. I want to add "phase 2" which is another 7x1.5tb raidz1 Can I add the second phase to the first phase and basically have two raid5''s striped (in raid terms?) Yes, I probably should upgrade the zpool format too. Currently running snv_104. Also should upgrade to 110. If that is possible, would anyone happen to have the simple command lines to