zfs command

Suppose if you have 500GB in a pool which has 5 mounts . 1. /u01a 100 (fixed quota) 2. /u01b 100 (fixed quota) 3. /u01c 75 (not fixed quota) 4. /u01d 75 (not fixed quota) The requirement is to increase the /u01b from 100gb to 200gb Step 1: First see whether this /u01a is fixed quota zfs get quota pool/u01a which will show the whether this mount is having fixed quota or not Step 2 : 2.a To increase more space ,first decrease 50gb from /u01a and 50gb from /u01c..so that you will have 100gb more .. to decrease space ..give the follwing zfs set quota=50gb pool/u01a (this will decrease 50gb from /u01a ) zfs set quota=50gb pool/u01c (this will decrease 50gb from /u01c ) 2.b now enter the below command zfs set quota=100gb pool/u01b ( this will increase 100gb to /u01b) Some more commands zfs list df -h /u01* /backup/ zfs get quota /backup/ zfs get quota pool/u01a zfs get volsize pool/u01a df -h zfs set quota=50gb pool/u01a