Replication

This page allows system administartors to manage replications. You can create, edit, and delete replication tasks. You can also run/stop the syncing and view the information of your replication tasks.

Shared Folder

To create a replication task for a shared folder:

  1. Go to the Shared Folder tab.
  2. Click Create.
  3. You will see the Create Replication Task wizard. Follow the steps of the wizard to create a shared folder replication.

Note:

To delete a shared folder replication:

  1. Select the shared folder replication task you wish to delete.
  2. Click Delete.
  3. You will see a confirmation message. Click Delete to confirm the deletion.

To edit a shared folder replication:

  1. Select the shared folder replication task you wish to edit.
  2. Click Edit.
  3. You will see a window containing the following tabs:
  4. In the Partner Server tab, you can edit the partner server information, including the hostname, port, username, and password.
  5. In the Schedule tab, tick the Enable snapshot schedule checkbox, and set up the time and frequency to take snapshots. You can untick the checkbox to cancel the scheduled snapshots for the shared folder.
  6. In the Retention tab, choose any of the following options:
  7. Click OK to apply the new settings.

Note:

To view the information of a shared folder replication:

  1. Select the shared folder replication task you wish to view.
  2. Click Info.
  3. You will see a window containing the following information:

To run the syncing of a shared folder replication:

  1. Select the shared folder replication you wish to sync.
  2. Click Run.
  3. Enter the description of the snapshot to be taken.
  4. Click OK to confirm the action.

To stop the syncing of a shared folder replication:

  1. Select the syncing share folder replication you wish to stop.
  2. Click Stop.
  3. You will see a confirmation message. Click Stop to confirm the action.

iSCSI LUN

To create a replication task for an iSCSI LUN:

  1. Go to the iSCSI LUN tab.
  2. Click Create.
  3. You will see the Create Replication Task wizard. Follow the steps of the wizard to create an iSCSI LUN replication.

Note:

To delete an iSCSI LUN replication:

  1. Select the iSCSI LUN replication task you wish to delete.
  2. Click Delete.
  3. You will see a confirmation message. Click Delete to confirm the action.

To edit an iSCSI LUN replication:

  1. Select the iSCSI LUN replication task you wish to edit.
  2. Click Edit.
  3. You will see a window containing the following tabs:
  4. In the Partner Server tab, you can edit the partner server information, including the hostname, port, username, and password.
  5. In the Schedule tab, tick the Enable snapshot schedule checkbox, and set up the time and frequency to take snapshots. You can untick the checkbox to cancel the scheduled snapshots for the iSCSI LUN.
  6. In the Retention tab, choose any of the following options:
  7. In the Application tab, tick the Enable application-consistent snapshots to enable application-consistent snapshots. To cancle application-consistent snapshots, please untick the checkbox.
  8. Click OK to apply the new settings.

Note:

To view info of an iSCSI LUN replication:

  1. Select the iSCSI LUN replication task you wish to view.
  2. Click Info.
  3. You will see a window containing the following information:

To run the syncing of an iSCSI LUN replication:

  1. Select the iSCSI LUN replication task you wish to sync.
  2. Click Run.
  3. Enter the description of the snapshot to be taken.
  4. Click OK to confirm the action.

To stop the syncing of an iSCSI LUN replication:

  1. Select the syncing iSCSI LUN replication task you wish to stop.
  2. Click Stop.
  3. You will see a confirmation message. Click Stop to confirm the action.

One-to-many/Extended Replication

You can create multiple replications for a shared folder/iSCSI LUN to multiple destination servers, forming a one-to-many scheme. You can also create an extended replication for a replicated shared folder/iSCSI LUN, forming an extended scheme.

Note:

Retention Policy

This option provides an ideal solution to help you specify the maximum amounts of snapshot versions to save your volume space, but you may need to retain your snapshots for longer periods of time.

Synology employs the GFS, or Grandfather-Father-Son retention policy. You can configure the maximum amounts of snapshot versions to be retained for the following time ranges respectively: hourly, daily, weekly, monthly, and yearly.

Data Protection Manager will retain as many as the configured maximum number of snapshots for every time range. If more than one snapshot verison exists within a time range, only the earliest one will be kept. For example, if you set a policy as 10 weekly snapshot(s), Data Protection Manager will retain the earliest snapshot (if more than one snapshot is taken in a week) for each of the latest 10 weeks.

Moreover, all snapshot versions within one hour since the taking of newest snapshot will be kept by default, for your convenience to find and restore from recent snapshot versions. You can also lock a snapshot to prevent it from automatic removal by your retention rules.