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sysadm/docs/api_reference/classes/zfs.rst
Mrt134 65037a300c Finish in-depth review of API Guide: 
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.. _zfs:
zfs
***
The zfs class is used to manage and retrieve information about ZFS pools.
Every zfs class request contains several parameters:
+---------------+-----------+-------------------------------------------+
| **Parameter** | **Value** | **Description** |
| | | |
+===============+===========+===========================================+
| id | | Any unique value for the request, |
| | | including a hash, checksum, or uuid. |
+---------------+-----------+-------------------------------------------+
| name | zfs | |
| | | |
+---------------+-----------+-------------------------------------------+
| namespace | sysadm | |
| | | |
+---------------+-----------+-------------------------------------------+
| action | | Actions include "list_pools", "datasets". |
| | | |
+---------------+-----------+-------------------------------------------+
The rest of this section provides examples of the available *actions*
for each type of request, along with their responses.
.. index:: list_pools, zfs
.. _List Pools:
List Pools
==========
The "list_pools" action lists pool information. For each ZFS pool, the
response includes the pool name, the amount of space that has been
physically allocated, whether or not an alternate root has been defined,
capacity (percent used), the deduplication ratio, amount of
uninitialized space (expandsz, which usually applies to LUNs),
percentage of fragmentation, amount of free space, pool health, and
total size. This action is the equivalent of running
:command:`zpool list` from the command line.
**REST Request**
::
PUT /sysadm/zfs
{
"action" : "list_pools"
}
**WebSocket Request**
.. code-block:: json
{
"namespace" : "sysadm",
"args" : {
"action" : "list_pools"
},
"name" : "zfs",
"id" : "fooid"
}
**Response**
.. code-block:: json
{
"args": {
"list_pools" : {
"tank": {
"alloc": "71.8G",
"altroot": "-",
"cap": "32%",
"dedup": "1.00x",
"expandsz": "-",
"frag": "18%",
"free": "148G",
"health": "ONLINE",
"size": "220G"
}
}
},
"id": "fooid",
"name": "response",
"namespace": "sysadm"
}
.. index:: datasets, zfs
.. _List Datasets:
List Datasets
=============
The "datasets" action lists the ZFS datasets on the specified pool.
**REST Request**
::
PUT /sysadm/zfs
{
"action" : "datasets",
"zpool" : "tank"
}
**WebSocket Request**
.. code-block:: json
{
"namespace" : "sysadm",
"id" : "fooid",
"args" : {
"action" : "datasets",
"zpool" : "tank"
},
"name" : "zfs"
}
**Response**
.. code-block:: json
{
"args": {
"datasets": {
"tank": {
"avail": "320G",
"mountpoint": "none",
"refer": "96K",
"used": "125G"
},
"tank/ROOT": {
"avail": "320G",
"mountpoint": "none",
"refer": "96K",
"used": "63.7G"
},
"tank/ROOT/11.0-CURRENTAPRIL2016-up-20160418_124146": {
"avail": "320G",
"mountpoint": "/",
"refer": "34.7G",
"used": "63.7G"
},
"tank/ROOT/11.0-CURRENTFEB2016-up-20160303_094216": {
"avail": "320G",
"mountpoint": "/",
"refer": "29.7G",
"used": "272K"
},
"tank/ROOT/11.0-CURRENTMAR2016-up-20160304_102405": {
"avail": "320G",
"mountpoint": "/",
"refer": "30.5G",
"used": "248K"
},
"tank/ROOT/11.0-CURRENTMAR2016-up-20160315_092952": {
"avail": "320G",
"mountpoint": "/",
"refer": "31.2G",
"used": "256K"
},
"tank/ROOT/11.0-CURRENTMAR2016-up-20160318_090405": {
"avail": "320G",
"mountpoint": "/",
"refer": "34.7G",
"used": "280K"
},
"tank/ROOT/initial": {
"avail": "320G",
"mountpoint": "/mnt",
"refer": "5.60G",
"used": "232K"
},
"tank/iocage": {
"avail": "320G",
"mountpoint": "/iocage",
"refer": "152K",
"used": "1.13G"
},
"tank/iocage/.defaults": {
"avail": "320G",
"mountpoint": "/iocage/.defaults",
"refer": "96K",
"used": "992K"
},
"tank/iocage/download": {
"avail": "320G",
"mountpoint": "/iocage/download",
"refer": "96K",
"used": "203M"
},
"tank/iocage/download/10.2-RELEASE": {
"avail": "320G",
"mountpoint": "/iocage/download/10.2-RELEASE",
"refer": "202M",
"used": "202M"
},
"tank/iocage/jails": {
"avail": "320G",
"mountpoint": "/iocage/jails",
"refer": "104K",
"used": "1000K"
},
"tank/iocage/releases": {
"avail": "320G",
"mountpoint": "/iocage/releases",
"refer": "96K",
"used": "953M"
},
"tank/iocage/releases/10.2-RELEASE": {
"avail": "320G",
"mountpoint": "/iocage/releases/10.2-RELEASE",
"refer": "96K",
"used": "952M"
},
"tank/iocage/releases/10.2-RELEASE/root": {
"avail": "320G",
"mountpoint": "/iocage/releases/10.2-RELEASE/root",
"refer": "825M",
"used": "951M"
},
"tank/iocage/templates": {
"avail": "320G",
"mountpoint": "/iocage/templates",
"refer": "96K",
"used": "992K"
},
"tank/iohyve": {
"avail": "320G",
"mountpoint": "/iohyve",
"refer": "96K",
"used": "22.8G"
},
"tank/iohyve/Firmware": {
"avail": "320G",
"mountpoint": "/iohyve/Firmware",
"refer": "96K",
"used": "992K"
},
"tank/iohyve/ISO": {
"avail": "320G",
"mountpoint": "/iohyve/ISO",
"refer": "96K",
"used": "453M"
},
"tank/iohyve/ISO/FreeBSD-10.1-RELEASE-amd64-bootonly.iso": {
"avail": "320G",
"mountpoint": "/iohyve/ISO/FreeBSD-10.1-RELEASE-amd64-bootonly.iso",
"refer": "219M",
"used": "220M"
},
"tank/iohyve/ISO/FreeBSD-10.2-RELEASE-amd64-bootonly.iso": {
"avail": "320G",
"mountpoint": "/iohyve/ISO/FreeBSD-10.2-RELEASE-amd64-bootonly.iso",
"refer": "231M",
"used": "232M"
},
"tank/iohyve/bsdguest": {
"avail": "320G",
"mountpoint": "/iohyve/bsdguest",
"refer": "96K",
"used": "22.4G"
},
"tank/iohyve/bsdguest/disk0": {
"avail": "341G",
"mountpoint": "-",
"refer": "1.75G",
"used": "22.4G"
},
"tank/tmp": {
"avail": "320G",
"mountpoint": "/tmp",
"refer": "2.95M",
"used": "18.3M"
},
"tank/usr": {
"avail": "320G",
"mountpoint": "none",
"refer": "96K",
"used": "37.5G"
},
"tank/usr/home": {
"avail": "320G",
"mountpoint": "/usr/home",
"refer": "96K",
"used": "27.8G"
},
"tank/usr/home/kris": {
"avail": "320G",
"mountpoint": "/usr/home/kris",
"refer": "21.9G",
"used": "27.8G"
},
"tank/usr/jails": {
"avail": "320G",
"mountpoint": "/usr/jails",
"refer": "96K",
"used": "992K"
},
"tank/usr/obj": {
"avail": "320G",
"mountpoint": "/usr/obj",
"refer": "4.68G",
"used": "4.75G"
},
"tank/usr/ports": {
"avail": "320G",
"mountpoint": "/usr/ports",
"refer": "2.20G",
"used": "2.96G"
},
"tank/usr/src": {
"avail": "320G",
"mountpoint": "/usr/src",
"refer": "1.82G",
"used": "2.01G"
},
"tank/var": {
"avail": "320G",
"mountpoint": "none",
"refer": "96K",
"used": "13.5M"
},
"tank/var/audit": {
"avail": "320G",
"mountpoint": "/var/audit",
"refer": "96K",
"used": "992K"
},
"tank/var/log": {
"avail": "320G",
"mountpoint": "/var/log",
"refer": "1.43M",
"used": "5.21M"
},
"tank/var/mail": {
"avail": "320G",
"mountpoint": "/var/mail",
"refer": "120K",
"used": "1.21M"
},
"tank/var/tmp": {
"avail": "320G",
"mountpoint": "/var/tmp",
"refer": "3.20M",
"used": "5.99M"
}
}
},
"id": "fooid",
"name": "response",
"namespace": "sysadm"
}
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