Hosts are exported with many related objects and object relations.
Host export contains:
When host is imported and updated, it can only be linked to additional templates and never be unlinked from any.
<hosts>
               <host>
                   <host>Zabbix server</host>
                   <name>Zabbix server</name>
                   <proxy/>
                   <status>0</status>
                   <ipmi_authtype>-1</ipmi_authtype>
                   <ipmi_privilege>2</ipmi_privilege>
                   <ipmi_username/>
                   <ipmi_password/>
                   <templates/>
                   <groups>
                       <group>
                           <name>Zabbix servers</name>
                       </group>
                   </groups>
                   <interfaces>
                       <interface>
                           <default>1</default>
                           <type>1</type>
                           <useip>1</useip>
                           <ip>127.0.0.1</ip>
                           <dns/>
                           <port>20001</port>
                           <interface_ref>if1</interface_ref>
                       </interface>
                   </interfaces>
                   <applications>
                       <application>
                           <name>Memory</name>
                       </application>
                       <application>
                           <name>Zabbix agent</name>
                       </application>
                   </applications>
                   <items>
                       <item>
                           <name>Agent ping</name>
                           <type>0</type>
                           <snmp_community/>
                           <multiplier>0</multiplier>
                           <snmp_oid/>
                           <key>agent.ping</key>
                           <delay>60</delay>
                           <history>7</history>
                           <trends>365</trends>
                           <status>0</status>
                           <value_type>3</value_type>
                           <allowed_hosts/>
                           <units/>
                           <delta>0</delta>
                           <snmpv3_securityname/>
                           <snmpv3_securitylevel>0</snmpv3_securitylevel>
                           <snmpv3_authpassphrase/>
                           <snmpv3_privpassphrase/>
                           <formula>1</formula>
                           <delay_flex/>
                           <params/>
                           <ipmi_sensor/>
                           <data_type>0</data_type>
                           <authtype>0</authtype>
                           <username/>
                           <password/>
                           <publickey/>
                           <privatekey/>
                           <port/>
                           <description>The agent always returns 1 for this item. It could be used in combination with nodata() for availability check.</description>
                           <inventory_link>0</inventory_link>
                           <applications>
                               <application>
                                   <name>Zabbix agent</name>
                               </application>
                           </applications>
                           <valuemap>
                               <name>Zabbix agent ping status</name>
                           </valuemap>
                           <interface_ref>if1</interface_ref>
                       </item>
                       <item>
                           <name>Available memory</name>
                           <type>0</type>
                           <snmp_community/>
                           <multiplier>0</multiplier>
                           <snmp_oid/>
                           <key>vm.memory.size[available]</key>
                           <delay>60</delay>
                           <history>7</history>
                           <trends>365</trends>
                           <status>0</status>
                           <value_type>3</value_type>
                           <allowed_hosts/>
                           <units>B</units>
                           <delta>0</delta>
                           <snmpv3_securityname/>
                           <snmpv3_securitylevel>0</snmpv3_securitylevel>
                           <snmpv3_authpassphrase/>
                           <snmpv3_privpassphrase/>
                           <formula>1</formula>
                           <delay_flex/>
                           <params/>
                           <ipmi_sensor/>
                           <data_type>0</data_type>
                           <authtype>0</authtype>
                           <username/>
                           <password/>
                           <publickey/>
                           <privatekey/>
                           <port/>
                           <description>Available memory is defined as free+cached+buffers memory.</description>
                           <inventory_link>0</inventory_link>
                           <applications>
                               <application>
                                   <name>Memory</name>
                               </application>
                           </applications>
                           <valuemap/>
                           <interface_ref>if1</interface_ref>
                       </item>
                   </items>
                   <discovery_rules>
                       <discovery_rule>
                           <name>Mounted filesystem discovery</name>
                           <type>0</type>
                           <snmp_community/>
                           <snmp_oid/>
                           <key>vfs.fs.discovery</key>
                           <delay>3600</delay>
                           <status>0</status>
                           <allowed_hosts/>
                           <snmpv3_securityname/>
                           <snmpv3_securitylevel>0</snmpv3_securitylevel>
                           <snmpv3_authpassphrase/>
                           <snmpv3_privpassphrase/>
                           <delay_flex/>
                           <params/>
                           <ipmi_sensor/>
                           <authtype>0</authtype>
                           <username/>
                           <password/>
                           <publickey/>
                           <privatekey/>
                           <port/>
                           <filter>{#FSTYPE}:@File systems for discovery</filter>
                           <lifetime>30</lifetime>
                           <description>Discovery of file systems of different types as defined in global regular expression "File systems for discovery".</description>
                           <item_prototypes>
                               <item_prototype>
                                   <name>Free disk space on $1</name>
                                   <type>0</type>
                                   <snmp_community/>
                                   <multiplier>0</multiplier>
                                   <snmp_oid/>
                                   <key>vfs.fs.size[{#FSNAME},free]</key>
                                   <delay>60</delay>
                                   <history>7</history>
                                   <trends>365</trends>
                                   <status>0</status>
                                   <value_type>3</value_type>
                                   <allowed_hosts/>
                                   <units>B</units>
                                   <delta>0</delta>
                                   <snmpv3_securityname/>
                                   <snmpv3_securitylevel>0</snmpv3_securitylevel>
                                   <snmpv3_authpassphrase/>
                                   <snmpv3_privpassphrase/>
                                   <formula>1</formula>
                                   <delay_flex/>
                                   <params/>
                                   <ipmi_sensor/>
                                   <data_type>0</data_type>
                                   <authtype>0</authtype>
                                   <username/>
                                   <password/>
                                   <publickey/>
                                   <privatekey/>
                                   <port/>
                                   <description/>
                                   <inventory_link>0</inventory_link>
                                   <applications>
                                       <application>
                                           <name>Filesystems</name>
                                       </application>
                                   </applications>
                                   <valuemap/>
                                   <interface_ref>if1</interface_ref>
                               </item_prototype>
                           </item_prototypes>
                           <trigger_prototypes>
                               <trigger_prototype>
                                   <expression>{Zabbix server 2:vfs.fs.size[{#FSNAME},pfree].last(0)}<20</expression>
                                   <name>Free disk space is less than 20% on volume {#FSNAME}</name>
                                   <url/>
                                   <status>0</status>
                                   <priority>2</priority>
                                   <description/>
                                   <type>0</type>
                               </trigger_prototype>
                           </trigger_prototypes>
                           <graph_prototypes>
                               <graph_prototype>
                                   <name>Disk space usage {#FSNAME}</name>
                                   <width>600</width>
                                   <height>340</height>
                                   <yaxismin>0.0000</yaxismin>
                                   <yaxismax>0.0000</yaxismax>
                                   <show_work_period>0</show_work_period>
                                   <show_triggers>0</show_triggers>
                                   <type>2</type>
                                   <show_legend>1</show_legend>
                                   <show_3d>1</show_3d>
                                   <percent_left>0.0000</percent_left>
                                   <percent_right>0.0000</percent_right>
                                   <ymin_type_1>0</ymin_type_1>
                                   <ymax_type_1>0</ymax_type_1>
                                   <ymin_item_1>0</ymin_item_1>
                                   <ymax_item_1>0</ymax_item_1>
                                   <graph_items>
                                       <graph_item>
                                           <sortorder>0</sortorder>
                                           <drawtype>0</drawtype>
                                           <color>C80000</color>
                                           <yaxisside>0</yaxisside>
                                           <calc_fnc>2</calc_fnc>
                                           <type>2</type>
                                           <item>
                                               <host>Zabbix server 2</host>
                                               <key>vfs.fs.size[{#FSNAME},total]</key>
                                           </item>
                                       </graph_item>
                                       <graph_item>
                                           <sortorder>1</sortorder>
                                           <drawtype>0</drawtype>
                                           <color>00C800</color>
                                           <yaxisside>0</yaxisside>
                                           <calc_fnc>2</calc_fnc>
                                           <type>0</type>
                                           <item>
                                               <host>Zabbix server 2</host>
                                               <key>vfs.fs.size[{#FSNAME},free]</key>
                                           </item>
                                       </graph_item>
                                   </graph_items>
                               </graph_prototype>
                           </graph_prototypes>
                           <interface_ref>if1</interface_ref>
                       </discovery_rule>
                   </discovery_rules>
                   <macros>
                       <macro>
                           <macro>{$M1}</macro>
                           <value>m1</value>
                       </macro>
                       <macro>
                           <macro>{$M2}</macro>
                           <value>m2</value>
                       </macro>
                   </macros>
                   <inventory/>
               </host>
           </hosts>| Parameter | Type | Description | Details | 
|---|---|---|---|
| host | string | Host name. | |
| name | string | Visible host name. | |
| status | int | Host Status. | |
| proxy | int | Proxy name. | |
| ipmi_authtype | int | IPMI authentication type. | |
| ipmi_privilege | int | IPMI privilege. | |
| ipmi_username | string | IPMI username. | |
| ipmi_password | string | IPMI password. | |
| Parameter | Type | Description | Details | 
|---|---|---|---|
| name | string | Group name. | |
| Parameter | Type | Description | Details | 
|---|---|---|---|
| name | string | Template technical name. | |
| Column name | Type | Description | 
|---|---|---|
| default | integer | Interface status: | 
| 0 - Not default interface | ||
| 1 - Default interface | ||
| type | integer | Interface type: | 
| 1 - agent | ||
| 2 - SNMP | ||
| 3 - IPMI | ||
| 4 - JMX | ||
| useip | integer | How to connect to the host: | 
| 0 – connect to the host using DNS name | ||
| 1 – connect to the host using IP address | ||
| ip | varchar | IP address, can be either IPv4 or IPv6. | 
| dns | varchar | DNS name. | 
| port | varchar | Port number. | 
| interface_ref | varchar | Interface reference name to be used in items. | 
| Parameter | Type | Description | Details | 
|---|---|---|---|
| name | string | Application name. | |
| Parameter | Type | Description | 
|---|---|---|
| type | int | Item type: | 
| 0 - Zabbix agent | ||
| 1 - SNMPv1 | ||
| 2 - Trapper | ||
| 3 - Simple check | ||
| 4 - SNMPv2 | ||
| 5 - Internal | ||
| 6 - SNMPv3 | ||
| 7 - Active check | ||
| 8 - Aggregate | ||
| 9 - HTTP test (web monitoring scenario step) | ||
| 10 - External | ||
| 11 - Database monitor | ||
| 12 - IPMI | ||
| 13 - SSH | ||
| 14 - telnet | ||
| 15 - Calculated | ||
| 16 - JMX | ||
| 17 - SNMP trap | ||
| snmp_community | string | SNMP Community name | 
| snmp_oid | string | SNMP OID | 
| port | int | Item custom port | 
| name | string | Item name | 
| key | string | Item key | 
| delay | int | Check interval | 
| history | int | How long to keep item history (days) | 
| trends | int | How long to keep item trends (days) | 
| status | int | Item status | 
| value_type | int | Value type | 
| trapper_hosts | string | |
| units | string | Value units | 
| multiplier | int | Value multiplier | 
| delta | int | Store values as delta | 
| snmpv3_securityname | string | SNMPv3 security name | 
| snmpv3_securitylevel | int | SNMPv3 security level | 
| snmpv3_authpassphrase | string | SNMPv3 authentication phrase | 
| snmpv3_privpassphrase | string | SNMPv3 private phrase | 
| formula | string | |
| delay_flex | string | Flexible delay | 
| params | string | |
| ipmi_sensor | string | IPMI sensor | 
| data_type | int | |
| authtype | int | |
| username | string | |
| password | string | |
| publickey | string | |
| privatekey | string | |
| interface_ref | varchar | Reference to host interface | 
| description | string | Item description | 
| inventory_link | int | Host inventory field number, that will be updated with the value returned by the item | 
| applications | Item applications | |
| valuemap | Value map assigned to item | |
| Parameter | Type | Description | Details | 
|---|---|---|---|
| name | string | Application name. | |