Differences

This shows you the differences between two versions of the page.

--- zfs_appliance [2018/12/06 21:05] – created 91.177.234.129
+++ zfs_appliance [2019/01/30 11:32] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
-====== ZFS_Appliance ======
+==== List the sizes and available space in all filesystems on ZFS appliance ====
+  *  [[https://docs.oracle.com/cd/E51475_01/html/E52872/user_interface__cli__scripting__interacting_with_the_system.html#scrolltoc|ZFS Appliance scripting]]\\
-=====List the sizes and available space in all filesystems on ZFS appliance=====
-  * [[https://docs.oracle.com/cd/E51475_01/html/E52872/user_interface__cli__scripting__interacting_with_the_system.html#scrolltoc|ZFS Appliance scripting]]<br />
 Make sure to be in the root context before running this.
-<code>0@@</code>
+<code>
+script
+       run('shares');
+       projects = list();
+       printf('%-40s %-10s %-10s\
+', 'SHARE', 'USED', 'AVAILABLE');
+       for (i = 0; i < projects.length; i++) {
+               run('select ' + projects[[i]]);
+               shares = list();
+               for (j = 0; j < shares.length; j++) {
+                       run('select ' + shares[[j]]);
+                       share = projects[[i]] + '/' + shares[[j]];
+                       used = run('get space_data').split(/\\s+/)[[3]];
+                       avail = run('get space_available').split(/\\s+/)[[3]];
+                       printf('%-40s %-10s %-10s\
+', share, used, avail);
+                       run('cd ..');
+               }
+               run('cd ..');
+       }
+.
+</code>
 and the same information but "machine readable" sizes
-<code>1@@</code>
+<code>
-=====Create a pool=====
+script
-<code>2@@</code>
+fmt = '%-40s %-15s %-15s\
-=====Create a ZFS filesystem / dataset in the pool=====
+';
-<code>3@@</code>
+printf(fmt, 'SHARE', 'USED', 'AVAILABLE');
+run('cd /');
+run('shares');
+pools = choices('pool');
+for (p = 0; p < pools.length; p++) {
+        set('pool', pools[[p]]);
+        projects = list();
+        for (i = 0; i < projects.length; i++) {
+                run('select ' + projects[[i]]);
+                shares = list();
+                for (j = 0; j < shares.length; j++) {
+                        run('select ' + shares[[j]]);
+                        share = pools[[p]] + ':' + projects[[i]] + '/' + shares[[j]];
+                        printf(fmt, share, get('space_data'),
+                            get('space_available'));
+                        run('cd ..');
+                }
+                run('cd ..');
+        }
+}
+.
+</code>
+==== Create a pool ====
+<code>
+[[sudo]] zfs create datapool mirror /dev/sdc /dev/sdd
+[[sudo]] zfs list
+</code>
+==== Create a ZFS filesystem / dataset in the pool ====
+<code>
+[[sudo]] zfs create datapool/scripts -o mountpoint=/scripts</code>
 [[sudo]] zfs list -r datapool
-=====Create a snapshot of the filesystem=====
+==== Create a snapshot of the filesystem ====
-<code>4@@</code>
+<code>
-=====Destroy a snapshot=====
+[[sudo]] zfs snapshot datapool/scripts@snap1
-<code>5@@</code>
+[[sudo]] zfs list -t snapshot
-=====Rollback a snapshot=====
+</code>
-====Create a file followed by a snapshot to preserve situation====
+==== Destroy a snapshot ====
-<code>6@@</code>
+<code>
-====Change the contents of the file====
+[[sudo]] zfs destroy datapool/scripts@snap1
-<code>7@@</code>
+[[sudo]] zfs list -t snapshot
-=====Rename a snapshot=====
+</code>
-<code>8@@</code>
+==== Rollback a snapshot ====
-=====Destroy a filesystem=====
+=== Create a file followed by a snapshot to preserve situation ===
-<code>9@@</code>
+<code>
+[[sudo]] echo "hello" >/scripts/test1.txt
+[[sudo]] cat /scripts/test1.txt
+[[sudo]] zfs snapshot datapool/scripts@before
+[[sudo]] zfs list -t snapshot
+</code>
+=== Change the contents of the file ===
+<code>
+[[sudo]] echo "goodbee" >/scripts/test1.txt
+[[sudo]] cat /scripts/test1.txt
+=== Rollback to previous snapshot and see original file contents ===
+<code>
+[[sudo]] zfs list -t snapshot
+[[sudo]] zfs rollback datapool/scripts@before
+[[sudo]] cat /scripts/test1.txt
+[[sudo]] zfs list -t snapshot
+</code>
+==== Rename a snapshot ====
+<code>
+[[sudo]] zfs rename datapool/scripts@before datapool/scripts@after
+[[sudo]] zfs list -t snapshot
+</code>
+==== Destroy a filesystem ====
+<code>
+[[sudo]] zfs destroy datapool/scripts
+[[sudo]] zfs list -r datapool
+</code>
 If there are snapshots of the filesystem, add -r to force the destruction
-<code>10@@</code>
+<code>
-=====Create a clone=====
+[[sudo]] zfs destroy -r datapool/scripts
-Clones can only be created from a snapshot.<br />
+[[sudo]] zfs list -t snapshot
-Snapshots cannot be deleted unless the clone is deleted.<br />
+</code>
+==== Create a clone ====
+Clones can only be created from a snapshot.\\
+Snapshots cannot be deleted unless the clone is deleted.\\
 Clone the snapshot datapool/scripts@before
-<code>11@@</code>
+<code>
-====Attempt to destroy underlying snapshot====
+[[sudo]] zfs clone datapool/scripts@before datapool/clone1
-<code>12@@</code>
+zfs list
-====Attempt to destroy underlying snapshot====
+ls /datapool/clone1
-<code>13@@</code>
+</code>
-====Destroy clone first====
+=== Attempt to destroy underlying snapshot ===
-<code>14@@</code>
+<code>
-====Attempt to destroy underlying snapshot again====
+</code>
-<code>15@@</code>
+=== Attempt to destroy underlying snapshot ===
+<code>
+[[sudo]] zfs destroy datapool/scripts@before
+</code>
+=== Destroy clone first ===
+<code>
+[[sudo]] zfs destroy datapool/clone1
+</code>
+=== Attempt to destroy underlying snapshot again ===
+<code>
+[[sudo]] zfs destroy datapool/scripts@before
+</code>