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NetVault Plug-in for SQL Server 12.0 - User Guide

Introducing NetVault Backup Plug-in for SQL Server Planning your SQL Server deployment Installing and removing the plug-in Configuring the plug-in Backing up data
Defining a backup strategy Understanding snapshot-based backups Reviewing the compression features Performing Online VDI backups Performing VSS backups in SQL Server Example of creating a full VDI backup of an AlwaysOn Availability Group
Restoring data Troubleshooting

Restoring data to a Virtual Client in an AlwaysOn Availability Group

The following topics list the high-level steps for restoring data in AlwaysOn Availability Group deployments and provide examples of different restores.

These topics describe the general steps that you must take to complete a restore.

When restoring a VSS-based backup, be aware of the following:

If you use the Copy Database Files to Target Directory option, do not remove the database from the group.
a
On the primary replica, select Suspend Data Movement for the database.

The following procedure describes how to restore a database that was added to the primary replica and all secondary replicas in the AlwaysOn Availability Group.

2
On the Create Selection Set page, click Edit Plugin Options, and configure the applicable parameters depending on whether you are performing a VSS or VDI restore.
3
In the AlwaysOn Availability Groups section, select the applicable check box (es):
Enter the NetVault Backup Client Name on the AlwaysOn Availability Groups Primary Node (optional): Enter the name of the client that is running on the primary node. If you enter a name for a different node, the restore fails. If you are unsure which client is running on the primary node, use SQL Server Management Studio to determine which node is the primary node in the group.
IMPORTANT: Although the second field is labeled optional, it is required in this scenario.

If you enter the correct information and the database is already part of the group, but you do not select the
Remove Primary Database from the AlwaysOn Availability Group Before Restore check box, the restore fails.

If the database is not part of the group, you specify an incorrect name, and the plug-in is unable to check that the client resides on the primary replica, the plug-in restores the database. However, you cannot add the database to the group.

If a failover to a different node occurs after the restore job is run and you have entered the primary client and group names, update the information stored in Restore Options to reflect the name of the new client. Otherwise, subsequent runs of the same restore job fail.
5
In the Instance Name, If Restoring to an AlwaysOn Named Instance field, enter the name of the instance.
TIP: Only enter the name of the instance. If you enter the fully qualified name, <HostName>\<InstanceName>, the plug-in ignores the hostname.
8
Perform a restore from each secondary replica that was backed up by the Full Database backup performed in Step 7.

The following procedure describes how to restore a secondary replica to a backup taken from the Virtual Client and then convert the secondary replica to function as the primary replica.

3
On the Create Selection Set page, click Edit Plugin Options, and configure the applicable parameters depending on whether you are performing a VSS or VDI restore.
4
In the Target Instance field in the Restore Options section, enter the name of the client running on the secondary replica.
5
In the AlwaysOn Availability Groups section, select the applicable check boxes:
6
In Restore to the following AlwaysOn Availability Group, enter the name of the group.
7
In the Instance Name, If Restoring to an AlwaysOn Named Instance field, enter the name of the instance.
TIP: Only enter the name of the instance. If you enter the fully qualified name, <HostName>\<InstanceName>, the plug-in ignores the hostname.
13
Perform a restore of each secondary replica using the Full and Transaction Log backups completed in the previous step.

The following procedure describes how to restore a VDI backup. This procedure is based on the example described in Example of creating a full VDI backup of an AlwaysOn Availability Group. The following procedure also requires that you restore Transaction Log backups, a process that was not included in the previous backup example.

1
2
In the saveset table on the Create Restore Job — Choose Saveset page, select the Full Backup of the primary replica that you are restoring, and click Next.
3
On the Create Selection Set page, select the AlwaysOn Availability Group that you want to restore.
4
Click Edit Plugin Options.
5
In the Restore Type section, select With NO RECOVERY.
6
In the AlwaysOn Availability Groups sections, select the Remove Primary Database from the AlwaysOn Availability Group Before Restore check box.
Do not select the Add Primary Database to the AlwaysOn Availability Group After Restore because you selected the With NO RECOVERY option.
7
Click OK to save the settings, and then click Next.
8
In Job Name, specify a name for the job if you do not want to use the default setting.
9
In the Target Client list, select the same Virtual Client that was the target of the backup.
10
Click Save & Submit, and use the Job Status page to monitor progress.
11
12
In the saveset table on the Create Restore Job — Choose Saveset page, select the Incremental Transaction Log backup of the primary replica that you are restoring, and click Next.
13
On the Create Selection Set page, select the same AlwaysOn Availability Group and databases that you selected during the restore of the Full Backup.
14
Click Edit Plugin Options.
15
In the Restore Type section, select With RECOVERY.
16
In the AlwaysOn Availability Groups section, select the Add Primary Database to the AlwaysOn Availability Group After Restore check box.
17
In the Restore to the following AlwaysOn Availability Group field, enter the name of the group.
18
In the Enter the NetVault Backup Client Name on the AlwaysOn Availability Groups Primary Node field, enter the name of the client on the primary node.
TIP: Only enter the name of the instance. If you enter the fully qualified name, <HostName>\<InstanceName>, the plug-in ignores the hostname.
20
Click OK to save the settings, and then click Next.
21
In Job Name, specify a name for the job if you do not want to use the default setting.
22
In the Target Client list, select the same Virtual Client that was the target of the backup.
23
Click Save & Submit, and use the Job Status page to monitor progress.
24
In the Navigation pane, click Create Backup Job.
25
In Job Name, specify a name for the job.
26
Next to the Selections list, click Create New.
27
In the selection tree, open the first secondary replica that you are restoring, and then open the All Instances node.
28
Select the All Instances node, and select Configure from the context menu.
30
Repeat Step 27 through Step 29 for each secondary replica.
31
In the selection tree for the primary replica, select that databases that you are backing up.
32
Run a VDI-based, Full Database backup.
33
Using the same Selections set that you used for the Full Database backup, run an Incremental Transaction Log backup.
34
35
In the saveset table on the Create Restore Job — Choose Saveset page, select the Full Backup of the primary replica that you completed Step 32, and click Next.
36
On the Create Selection Set page, select the databases that you want to restore, and click Edit Plugin Options.
37
In the Restore Type section, select With NO RECOVERY, click OK, and then click Next.
38
In Job Name, specify a name for the job if you do not want to use the default setting.
39
In the Target Client list, select the Virtual Client name of the secondary replica.
40
Click Save & Submit, and use the Job Status page to monitor progress.
41
Repeat Step 34 through Step 40 to restore the Incremental Transaction Log backup from the primary replica to the secondary replica.
43
Repeat Step 34 through Step 42 for each secondary replica that is part of the group.

The following procedure describes how to restore a database to an AlwaysOn Availability Group if the database was removed from the primary replica before the restore.

2
On the Create Selection Set page, click Edit Plugin Options, and configure the applicable parameters depending on whether you are performing a VSS or VDI restore.
3
In the AlwaysOn Availability Groups section, clear the check box Remove Primary Database from the AlwaysOn Availability Group Before Restore.
4
Select or clear the Add Primary Database to the AlwaysOn Availability Group After Restore check box, whichever is applicable.
Enter the NetVault Backup Client Name on the AlwaysOn Availability Groups Primary Node (optional): Enter the name of the client that is running on the primary node. If you enter a name for a different node, the restore fails. If you are unsure which client is running on the primary node, use SQL Server Management Studio to determine which node is the primary node in the group.
TIP: Only enter the name of the instance. If you enter the fully qualified name, <HostName>\<InstanceName>, the plug-in ignores the hostname.
9
Perform a restore from each secondary replica that was backed up by the Full Database backup performed in Step 7.

Renaming or relocating a database

The plug-in lets you restore a database to a different name during restore. The renaming of a database can be useful if you do not want to overwrite the existing version and want to create a copy of the database. You can also relocate the database to a different directory while restoring it with the plug-in.

1
In the Navigation pane, click Create Restore Job, select Plug‑in for SQL Server from the Plugin Type list, select the applicable saveset, and click Next.
2
With the database selected on the Create Selection Set page, select Rename from the context menu.
3
In the Rename/Relocate dialog box, enter the applicable information:
Rename: Enter the new name.
Relocate: Enter the new path.

Restoring a database to an alternate instance

With the plug-in’s VDI-based backup method, you can restore a database to an alternate instance of SQL Server running on the database server. The procedure for performing this type of a restore is outlined in the following topic. This process does not support the use of AlwaysOn Availability Groups.

IMPORTANT: If you intend to restore a database to an alternate instance that resides on the same server and the original database still exists, use the Rename/Relocate option described previously in Renaming or relocating a database. Use this option to rename or move the datafiles to ensure that they do not overwrite or conflict with the same files in the original database.

Same version of SQL Server: Both the source instance from which the data was backed up and the target instance to which the data is to be restored must be running the same version of SQL Server.
Instance configured for access: The instance to which the database is to be restored must be accessible to the plug-in. To set up the instance for access, see Configuring authentication details.
2
In the Navigation pane, click Create Restore Job, select Plug‑in for SQL Server from the Plugin Type list, select the applicable saveset, and click Next.
3
On the Create Selection Set page, click Edit Plugin Options, and configure the restore options by following the instructions outlined in Restoring data from Online VDI backups.
4
In addition, set the Target Instance parameter.
To do so, specify the name of the instance to which the selected database is to be restored. You can either specify the fully qualified name, that is, <HostName>\<InstanceName> — for example, WIN2K3\SQLINSTANCE2 or the instance name, for example, SQLINSTANCE2, in this field.

Restoring data to an alternate SQL Server

Similar to the plug-in’s ability to restore databases to a different SQL Server Instance on the same database server, you can target a different SQL Server during the restore process. This process does not support the use of AlwaysOn Availability Groups.

This functionality is useful during disaster recovery operations. You can restore a database to a different SQL Server by using the steps provided in the following topics. You can also use this process to restore a NetVault Backup Virtual Client to a standalone NetVault Backup Client.

Same version of SQL Server installed: The SQL Server version must be the same as the version running on the existing database server.
NetVault Backup software and the Plug‑in for SQL Server installed: The same version of NetVault Backup software and the plug-in must be installed and configured on the new restore target.
Client added to the NetVault Backup Server: The target machine must be added to the NetVault Backup Server by using the Manage Clients page of the NetVault Backup WebUI.
Instance of SQL Server must exist on the new restore target: An instance of SQL Server must exist on the new restore target. This instance serves as the target of the relocation restore. Not only must this instance be properly set up and configured in SQL Server, it must also be accessible to the plug-in on the new restore target. To set up the instance for access, see Configuring authentication details.
2
Restore the master and the msdb database backups.
IMPORTANT: When you perform a restore to an alternate server, you cannot modify the name or destination of the restored master database. The master database is restored to the location of the current master database in the target for the restore.
3
After restoring the master database, restart the server.
a
In the Navigation pane, click Create Restore Job, select Plug‑in for SQL Server from the Plugin Type list, select the applicable saveset, and click Next.
b
On the Create Selection Set page, click Edit Plugin Options, and configure the restore options by following the instructions outlined in Restoring data from Online VDI backups.
c
In addition, set the Target Instance parameter.
d
Click OK to save the settings, and then click Next.
e
In Job Name, specify a name for the job if you do not want to use the default setting.
f
In the Target Client list, select the new restore target.
g
Use the Schedule, Source Options, and Advanced Options lists to configure any additional required options.
h
Click Save or Save & Submit, whichever is applicable.
You can monitor progress on the Job Status page and view the logs on the View Logs page. For more information, see the Quest NetVault Backup Administrator’s Guide.
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