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vinayakrk/Sparsify TrueNAS VM disk.md

Created September 14, 2023 10:46
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Make Truenas VM disk sparse allocation
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Sparsify TrueNAS VM disk.md

Create the VM as normal.

After creation go to portal and find the path for the zvol e.g.: nvme1/vmdisks/awx-wsh01 or nvme1/vmdisks/ol8vm1-ci39z

Login as root on the TRUENAS console (or run with sudo when logged in as admin)

root@tnas1[~]# zfs get refreservation nvme1/vmdisks/awx-wsh01       
NAME                     PROPERTY        VALUE      SOURCE
nvme1/vmdisks/awx-wsh01  refreservation  65.0G      local
root@tnas1[~]# zfs inherit -S refreservation nvme1/vmdisks/awx-wsh01
root@tnas1[~]# zfs get refreservation nvme1/vmdisks/awx-wsh01       
NAME                     PROPERTY        VALUE      SOURCE
nvme1/vmdisks/awx-wsh01  refreservation  none       default
root@tnas1[~]# 
root@tnas1[~]# zfs get refreservation nvme1/vmdisks/ol8vm1-ci39z        
NAME                        PROPERTY        VALUE      SOURCE
nvme1/vmdisks/ol8vm1-ci39z  refreservation  60.9G      local
root@tnas1[~]# zfs inherit -S refreservation nvme1/vmdisks/ol8vm1-ci39z
root@tnas1[~]# zfs get refreservation nvme1/vmdisks/ol8vm1-ci39z       
NAME                        PROPERTY        VALUE      SOURCE
nvme1/vmdisks/ol8vm1-ci39z  refreservation  none       default
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