From maas <session> nodes list  

 {
        "hwe_kernel": "hwe-w", 
        "ip_addresses": [
            "10.0.0.128"
        ], 
        "cpu_count": 4, 
        "power_type": "ipmi", 
        "tag_names": [], 
        "swap_size": null, 
        "owner": "bladernr", 
        "macaddress_set": [
            {
                "mac_address": "00:30:48:65:5e:0c"
            }, 
            {
                "mac_address": "00:30:48:65:5e:0d"
            }
        ], 
        "zone": {
            "resource_uri": "/MAAS/api/1.0/zones/Rack2/", 
            "name": "Rack2", 
            "description": "Rack2"
        }, 
        "hostname": "supermicro.maas", 
        "storage": 4000797, 
        "substatus_message": "'cloudinit' running modules for final", 
        "system_id": "node-28402790-92c5-11e5-a8a3-eca86bfb9f66", 
        "boot_type": "fastpath", 
        "memory": 4096, 
        "substatus_action": "modules-final", 
        "disable_ipv4": false, 
        "architecture": "amd64/generic", 
        "status": 6, 
        "power_state": "on", 
        "substatus_name": "Failed deployment", 
        "routers": [
            "5c:f4:ab:f8:5b:a4", 
            "5c:f4:ab:f8:5b:a4"
        ], 
        "physicalblockdevice_set": [
            {
                "size": 2000398934016, 
                "resource_uri": "/MAAS/api/1.0/nodes/node-28402790-92c5-11e5-a8a3-eca86bfb9f66/blockdevices/5/", 
                "uuid": null, 
                "name": "sda", 
                "tags": [
                    "rotary", 
                    "sata", 
                    "7200rpm"
                ], 
                "type": "physical", 
                "id": 5, 
                "used_for": "MBR partitioned with 1 partition", 
                "partition_table_type": "MBR", 
                "filesystem": null, 
                "id_path": "/dev/disk/by-id/wwn-0x50014ee0040d0de7", 
                "available_size": 0, 
                "path": "/dev/disk/by-dname/sda", 
                "block_size": 4096, 
                "used_size": 2000398843904, 
                "model": "WDC WD2004FBYZ-0", 
                "serial": "WD-WMC6N0D4Y76V", 
                "partitions": [
                    {
                        "uuid": "22fd433f-13f1-4f47-bcd1-a00f181ec828", 
                        "bootable": false, 
                        "used_for": "Active raid-0 device for md0", 
                        "filesystem": {
                            "mount_point": null, 
                            "uuid": "4da2895f-5dd5-4939-8dc0-15159fe927c8", 
                            "fstype": "raid", 
                            "label": null
                        }, 
                        "path": "/dev/disk/by-dname/sda-part1", 
                        "resource_uri": "/MAAS/api/1.0/nodes/node-28402790-92c5-11e5-a8a3-eca86bfb9f66/blockdevices/5/partition/8", 
                        "type": "partition", 
                        "id": 8, 
                        "size": 2000393601024
                    }
                ]
            }, 
            {
                "size": 2000398934016, 
                "resource_uri": "/MAAS/api/1.0/nodes/node-28402790-92c5-11e5-a8a3-eca86bfb9f66/blockdevices/6/", 
                "uuid": null, 
                "name": "sdb", 
                "tags": [
                    "rotary", 
                    "sata", 
                    "7200rpm"
                ], 
                "type": "physical", 
                "id": 6, 
                "used_for": "GPT partitioned with 1 partition", 
                "partition_table_type": "GPT", 
                "filesystem": null, 
                "id_path": "/dev/disk/by-id/wwn-0x50014ee0aeb7cbe7", 
                "available_size": 0, 
                "path": "/dev/disk/by-dname/sdb", 
                "block_size": 4096, 
                "used_size": 2000398843904, 
                "model": "WDC WD2004FBYZ-0", 
                "serial": "WD-WMC6N0D8AS39", 
                "partitions": [
                    {
                        "uuid": "1c835e23-c2ad-4b51-b0d1-4eb1b45017a1", 
                        "bootable": false, 
                        "used_for": "Active raid-0 device for md0", 
                        "filesystem": {
                            "mount_point": null, 
                            "uuid": "d6e4c5fe-66eb-4b53-9fc2-a931391fc935", 
                            "fstype": "raid", 
                            "label": null
                        }, 
                        "path": "/dev/disk/by-dname/sdb-part1", 
                        "resource_uri": "/MAAS/api/1.0/nodes/node-28402790-92c5-11e5-a8a3-eca86bfb9f66/blockdevices/6/partition/9", 
                        "type": "partition", 
                        "id": 9, 
                        "size": 2000393601024
                    }
                ]
            }
        ], 
        "boot_disk": null, 
        "pxe_mac": {
            "mac_address": "00:30:48:65:5e:0c"
        }, 
        "netboot": true, 
        "osystem": "ubuntu", 
        "substatus": 11, 
        "virtualblockdevice_set": [
            {
                "size": 4000787202048, 
                "resource_uri": "/MAAS/api/1.0/nodes/node-28402790-92c5-11e5-a8a3-eca86bfb9f66/blockdevices/13/", 
                "uuid": "c6fbb014-2e02-45a7-9f02-0b4991cca793", 
                "name": "md0", 
                "tags": [], 
                "type": "virtual", 
                "used_for": "ext4 formatted filesystem mounted at /", 
                "partition_table_type": null, 
                "filesystem": {
                    "mount_point": "/", 
                    "uuid": "84aa5994-806a-48f9-ad3c-712d762f6a80", 
                    "fstype": "ext4", 
                    "label": ""
                }, 
                "id": 13, 
                "available_size": 0, 
                "path": "/dev/disk/by-dname/md0", 
                "block_size": 512, 
                "used_size": 4000787202048, 
                "model": null, 
                "serial": null, 
                "partitions": []
            }
        ], 
        "min_hwe_kernel": "", 
        "interface_set": [
            {
                "name": "eth1", 
                "links": [
                    {
                        "subnet": {
                            "dns_servers": [], 
                            "name": "10.0.0.0/24", 
                            "space": "space-0", 
                            "vlan": {
                                "name": "untagged", 
                                "resource_uri": "/MAAS/api/1.0/vlans/0/", 
                                "fabric": "fabric-0", 
                                "vid": 0, 
                                "id": 0
                            }, 
                            "gateway_ip": "10.0.0.1", 
                            "cidr": "10.0.0.0/24", 
                            "id": 1, 
                            "resource_uri": "/MAAS/api/1.0/subnets/1/"
                        }, 
                        "id": 98, 
                        "mode": "link_up"
                    }
                ], 
                "tags": [], 
                "vlan": {
                    "name": "untagged", 
                    "resource_uri": "/MAAS/api/1.0/vlans/0/", 
                    "fabric": "fabric-0", 
                    "vid": 0, 
                    "id": 0
                }, 
                "enabled": true, 
                "id": 11, 
                "discovered": [], 
                "mac_address": "00:30:48:65:5e:0d", 
                "parents": [], 
                "effective_mtu": 1500, 
                "params": "", 
                "type": "physical", 
                "children": [], 
                "resource_uri": "/MAAS/api/1.0/nodes/node-28402790-92c5-11e5-a8a3-eca86bfb9f66/interfaces/11/"
            }, 
            {
                "name": "eth0", 
                "links": [
                    {
                        "subnet": {
                            "dns_servers": [], 
                            "name": "10.0.0.0/24", 
                            "space": "space-0", 
                            "vlan": {
                                "name": "untagged", 
                                "resource_uri": "/MAAS/api/1.0/vlans/0/", 
                                "fabric": "fabric-0", 
                                "vid": 0, 
                                "id": 0
                            }, 
                            "gateway_ip": "10.0.0.1", 
                            "cidr": "10.0.0.0/24", 
                            "id": 1, 
                            "resource_uri": "/MAAS/api/1.0/subnets/1/"
                        }, 
                        "ip_address": "10.0.0.128", 
                        "id": 101, 
                        "mode": "auto"
                    }
                ], 
                "tags": [], 
                "vlan": {
                    "name": "untagged", 
                    "resource_uri": "/MAAS/api/1.0/vlans/0/", 
                    "fabric": "fabric-0", 
                    "vid": 0, 
                    "id": 0
                }, 
                "enabled": true, 
                "id": 10, 
                "discovered": [], 
                "mac_address": "00:30:48:65:5e:0c", 
                "parents": [], 
                "effective_mtu": 1500, 
                "params": "", 
                "type": "physical", 
                "children": [], 
                "resource_uri": "/MAAS/api/1.0/nodes/node-28402790-92c5-11e5-a8a3-eca86bfb9f66/interfaces/10/"
            }
        ], 
        "blockdevice_set": [
            {
                "resource_uri": "/MAAS/api/1.0/nodes/node-28402790-92c5-11e5-a8a3-eca86bfb9f66/blockdevices/5/", 
                "uuid": null, 
                "name": "sda", 
                "tags": [
                    "rotary", 
                    "sata", 
                    "7200rpm"
                ], 
                "type": "physical", 
                "partitions": [
                    {
                        "uuid": "22fd433f-13f1-4f47-bcd1-a00f181ec828", 
                        "bootable": false, 
                        "used_for": "Active raid-0 device for md0", 
                        "filesystem": {
                            "mount_point": null, 
                            "uuid": "4da2895f-5dd5-4939-8dc0-15159fe927c8", 
                            "fstype": "raid", 
                            "label": null
                        }, 
                        "path": "/dev/disk/by-dname/sda-part1", 
                        "resource_uri": "/MAAS/api/1.0/nodes/node-28402790-92c5-11e5-a8a3-eca86bfb9f66/blockdevices/5/partition/8", 
                        "type": "partition", 
                        "id": 8, 
                        "size": 2000393601024
                    }
                ], 
                "used_for": "MBR partitioned with 1 partition", 
                "id": 5, 
                "partition_table_type": "MBR", 
                "filesystem": null, 
                "id_path": "/dev/disk/by-id/wwn-0x50014ee0040d0de7", 
                "available_size": 0, 
                "path": "/dev/disk/by-dname/sda", 
                "block_size": 4096, 
                "used_size": 2000398843904, 
                "model": "WDC WD2004FBYZ-0", 
                "serial": "WD-WMC6N0D4Y76V", 
                "size": 2000398934016
            }, 
            {
                "resource_uri": "/MAAS/api/1.0/nodes/node-28402790-92c5-11e5-a8a3-eca86bfb9f66/blockdevices/6/", 
                "uuid": null, 
                "name": "sdb", 
                "tags": [
                    "rotary", 
                    "sata", 
                    "7200rpm"
                ], 
                "type": "physical", 
                "partitions": [
                    {
                        "uuid": "1c835e23-c2ad-4b51-b0d1-4eb1b45017a1", 
                        "bootable": false, 
                        "used_for": "Active raid-0 device for md0", 
                        "filesystem": {
                            "mount_point": null, 
                            "uuid": "d6e4c5fe-66eb-4b53-9fc2-a931391fc935", 
                            "fstype": "raid", 
                            "label": null
                        }, 
                        "path": "/dev/disk/by-dname/sdb-part1", 
                        "resource_uri": "/MAAS/api/1.0/nodes/node-28402790-92c5-11e5-a8a3-eca86bfb9f66/blockdevices/6/partition/9", 
                        "type": "partition", 
                        "id": 9, 
                        "size": 2000393601024
                    }
                ], 
                "used_for": "GPT partitioned with 1 partition", 
                "id": 6, 
                "partition_table_type": "GPT", 
                "filesystem": null, 
                "id_path": "/dev/disk/by-id/wwn-0x50014ee0aeb7cbe7", 
                "available_size": 0, 
                "path": "/dev/disk/by-dname/sdb", 
                "block_size": 4096, 
                "used_size": 2000398843904, 
                "model": "WDC WD2004FBYZ-0", 
                "serial": "WD-WMC6N0D8AS39", 
                "size": 2000398934016
            }, 
            {
                "resource_uri": "/MAAS/api/1.0/nodes/node-28402790-92c5-11e5-a8a3-eca86bfb9f66/blockdevices/13/", 
                "uuid": "c6fbb014-2e02-45a7-9f02-0b4991cca793", 
                "name": "md0", 
                "tags": [], 
                "type": "virtual", 
                "partitions": [], 
                "used_for": "ext4 formatted filesystem mounted at /", 
                "id": 13, 
                "partition_table_type": null, 
                "filesystem": {
                    "mount_point": "/", 
                    "uuid": "84aa5994-806a-48f9-ad3c-712d762f6a80", 
                    "fstype": "ext4", 
                    "label": ""
                }, 
                "id_path": null, 
                "available_size": 0, 
                "path": "/dev/disk/by-dname/md0", 
                "block_size": 512, 
                "used_size": 4000787202048, 
                "model": null, 
                "serial": null, 
                "size": 4000787202048
            }
        ], 
        "distro_series": "wily", 
        "resource_uri": "/MAAS/api/1.0/nodes/node-28402790-92c5-11e5-a8a3-eca86bfb9f66/"
    }