How to clear zfs properties in solaris?

petulia3478

To clear a settable zfs property (except quota and reservation) on a child, use "zfs inherit" to inherit the property of the parent.

For example, set the compress property to "on" on test_pool/fs1/admin:

# zfs set compression=on test_pool/fs1/admin

Check the compression property settings on test_pool:

# zfs get -r compression test_pool

To clear the compression property on test_pool/fs1/admin and revert to that of the parent:

# zfs inherit compression test_pool/fs1/admin

Check the result:

# zfs get -r compression test_pool
NAME                 PROPERTY     VALUE                SOURCE
test_pool            compression  off                  default
test_pool/export     compression  off                  default
test_pool/fs1        compression  off                  default
test_pool/fs1/admin  compression  off                  default
test_pool/fs2        compression  off                  default

If both had compression set to "on", the value set in the most immediate ancestor would be used, in the above example, fs1.

NOTE: if you use the -r option, the properties of all descendents will be changed i.e.:

# zfs get -r compression test_pool
NAME                 PROPERTY     VALUE                SOURCE
test_pool            compression  off                  default
test_pool/export     compression  off                  default
test_pool/fs1        compression  on                   local
test_pool/fs1/admin  compression  on                   local
test_pool/fs2        compression  off                  default

# zfs inherit -r compression test_pool/fs1

# zfs get -r compression test_pool
NAME                 PROPERTY     VALUE                SOURCE
test_pool            compression  off                  default
test_pool/export     compression  off                  default
test_pool/fs1        compression  off                  default
test_pool/fs1/admin  compression  off                  default
test_pool/fs2        compression  off                  default