ZFS and free space

Johan Helsingius julf at julf.com
Wed Aug 16 08:03:39 UTC 2017

Hi, Mike,

On 16-08-17 07:45, Michael Schuster wrote:
> I wonder ... is zroot/usr/home part of zroot/home? Naming suggests
> otherwise.
> Perhaps you can try 
> # zfs list -t all | egrep 'home|usr' 
>  (or simply 'zfs list -t all', if that doesn't produce too much output)
> and see whether that helps ...

# zfs list -t all
zroot               10.2T  47.8G   140K  /zroot
zroot/ROOT          3.01G  47.8G   140K  none
zroot/ROOT/default  3.01G  47.8G  3.01G  /
zroot/home          5.98T  47.8G  5.98T  /home/storage
zroot/tmp            163K  47.8G   163K  /tmp
zroot/usr           4.17T  47.8G   140K  /usr
zroot/usr/home      4.17T  47.8G  4.17T  /usr/home
zroot/usr/ports     1.26G  47.8G  1.26G  /usr/ports
zroot/usr/src        140K  47.8G   140K  /usr/src
zroot/var           1.42M  47.8G   140K  /var
zroot/var/audit      140K  47.8G   140K  /var/audit
zroot/var/crash      140K  47.8G   140K  /var/crash
zroot/var/log        761K  47.8G   761K  /var/log
zroot/var/mail       140K  47.8G   140K  /var/mail
zroot/var/tmp        140K  47.8G   140K  /var/tmp

So /zroot is 10T, zroot/home is 6T and zroot/usr (and zroot/usr/home)
is 4T - so clearly they are separate. But what is taking up the space
on zroot/usr/home? "du" doesn't show anything there!

# du -sh /usr/home/*
715M    /usr/home/julf
4.2T    /usr/home/storage

# file /home
/home: symbolic link to usr/home

# ls -id /usr/home/storage/ /home/storage
18 /home/storage        18 /usr/home/storage/


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