Zimbra Next Generation Modules/Zimbra NG Backup/ExternalRestore: Difference between revisions

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#REDIRECT [[Zimbra_NG_Modules/Zimbra_NG_Backup/ExternalRestore]]
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    <h2 class="title-header" style="padding-bottom: 9px; border-bottom: 4px solid #0087c3;">Zimbra NG Backup - External Restore</h2>
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                        <h5 class="post-title">Zimbra NG Backup - External Restore</h5>
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== What is the External Restore? ==
The External Restore is one of the Restore Modes of Zimbra NG Backup.
== How does it work? ==
The External Restore adds to the current Zimbra server all the data, metadata and configurations stored on an External Backup.
This also applies to Zimbra Next Generation Modules Migration Tool exports, allowing you to import domains from other servers. See the [[Zimbra_Next_Generation_Modules/Migration_Tool_Guide]] for extended informations.
The workflow of the import procedure is the following:
* ''"Operation Started" notification''
* Read Server Backup Data
* Create empty Domains
* Create needed COS (only those effectively used by the imported accounts)
* Create empty DLs
* Create empty Accounts
* Restore all Accounts' attributes
* Restore all Domains' attributes
* Restore all DLs' attributes and share informations
* ''"PHASE1 Feedback" Notification''
* Restore all Items
* Restore all Mountpoints and Datasources
*''"Operation Ended" notification with complete feedback''
== Before you start ==
If you are working on a Multistore environment be sure to have read and understood the  [[Zimbra_Next_Generation_Modules/Zimbra_NG_Backup/Multistore_Informations|Multistore informations]] page before starting an External Restore.
If Zimbra NG Backup is already initialized on the destination server, disable the RealTime Scanner in order to improve both memory usage and I/O performances.
In order to reduce the I/O overhead and the amount of disk space used for the migration, advanced users may tweak or disable Zimbra's [[Zimbra_Next_Generation_Modules/Running_Zimbra_Next_Generation_Modules_on_Zimbra_Network_Edition#RedoLog_management | RedoLog]] for the duration of the import.
In order to further reduce the amount of disk space used, it's possible to enable compression on your Current Primary Volume before starting the import. If you do not wish to use a compressed Primary Volume after migration, it's possible to create a new and uncompressed Primary Volume, set it to "Current" and the switch the old one to "Secondary". All of this can be done using [[Zimbra_NG_HSM/Admin_Guide|Zimbra NG HSM]].
== Running an External Restore ==
===Via the Zimbra NG Backup Administration Zimlet===
* Click the Backup tab (be sure to have a valid [[Zimbra_Next_Generation_Modules/License Management|License]]).
* Click on the "Import Backup" button under "Import/Export" to open the Import Backup wizard.
* Enter the Destination Path in the textbox and press Forward. Zimbra NG Backup will check if the destination folder contains a valid Zimbra Backup and whether the 'zimbra' user has Read permissions or not.
* Select the domains you want to import and press Forward.
* Select the accounts you want to import and press Forward.
* Verify all your choices in the Operation Summary window. You can also add additional email addresses to be notified when the Restore operation is finished. Please notice that the Admin account and the User who started the Restore procedure are notified by default.
===Via the Zimbra Next Generation Modules CLI===
To start an External Restore operation, the "doExternalRestore" command is available:
  zxsuite backup doExternalRestore {source_path} [attr1 value1 [attr2 value2...]]
NAME                          TYPE                EXPECTED VALUES    DEFAULT
source_path(M)                Path                                   
accounts(O)                  Account Name[,..]                      all
domains(O)                    Domain Name[,..]                        all
filter_deleted(O)            Boolean              true|false        true
skip_system_accounts(O)      Boolean              true|false        true
skip_aliases(O)              Boolean              true|false        false
skip_distribution_lists(O)    Boolean              true|false        false
provisioning_only(O)          Boolean              true|false        false
skip_coses(O)                Boolean              true|false        false
notifications(O)              Email Address                         
(M) == mandatory parameter, (O) == optional parameter
Usage example:
zxsuite backup doexternalrestore /opt/zimbra/backup/restorePath/ accounts john@example.com,jack@example.com domains example.com filter_deleted false skip_system_accounts false
Restores the example.com domain, including all system accounts, and the john@example.com and jack@example.com accounts from a backup located in /opt/zimbra/backup/restorePath/
== After the Restore: Message Deduplication ==
Running a [[Zimbra_NG_HSM/Item_Deduplication|Message Deduplication]] operation through [[Zimbra_NG_HSM|Zimbra NG HSM]] is highly suggested in order to save precious storage space.
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Latest revision as of 12:48, 29 November 2017

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