Delete zfs dump volume

UNIX Solaris
1

Hi guys,
how do you delete a zfs dump volume ?

Thanks for your help.

2

This will revert the dump volume (assuming it is rpool/dump) to the swap area and remove it:

dumpadm -d swap
zfs destroy rpool/dump
3

Jilliagre@ is right.
Before destroying the dump volume,you have to make that its no longer using in OS.
dumpadm may point to your zfs dump volume.

bash-3.00# dumpadm
      Dump content: kernel pages
       Dump device: /dev/zvol/dsk/rpool/dump (dedicated)
Savecore directory: /var/crash/sfos
  Savecore enabled: yes
   Save compressed: on
bash-3.00#

bash-3.00# dumpadm -d swap
dumpadm: no swap devices could be configured as the dump device

Here i am unable to set swap as dump .So i am disabling the dump device.

bash-3.00# dumpadm -z off
      Dump content: kernel pages
       Dump device: none (dumps disabled)
Savecore directory: /var/crash/sfos
  Savecore enabled: yes
   Save compressed: off

Now you are good to destroy dump volume.

bash-3.00# zfs destroy rpool/dump