View source for Windows driveletter


== Windows Drive letters ==

There is a new dataset property called '''driveletter'''

         driveletter     YES       NO   off | on | A-Z

By default, the value of '''driveletter''' is '''"-"''', which means

 If pool's root dataset:  driveletter = on
 If other dataset: driveletter = off

 $ ./zfs.exe mount
 tank                            E:\
 tank/lower                      tank/lower

This effectively means the pool itself will get the first available driveletter, for example, '''E:''', and a lower
dataset will be mounted inside the pool. '''E:/lower'''.

If the root's dataset is set to '''driveletter = off''' it will mount the pool inside your default OS volume. 

 zfs set driveletter=off tank
 zpool export tank
 zpool import tank
 zfs mount
 tank             C:\tank

If a lower dataset is set to '''driveletter = on''' it will also get a driveletter. The pool is assumed to be '''on''' here.

 zfs set driveletter=on tank/lower
 zpool export tank
 zpool import tank
 zfs mount
 tank             E:\
 tank/lower       F:\

You can also explicitly set a driveletter, by using '''driveletter=A-Z'''

 zfs set driveletter=Z tank
 zpool export tank
 zpool import tank
 zfs mount
 tank             Z:\