It is assumed that the following tasks have been performed:
- The Protector Master software has been installed and licensed on a dedicated node.
- The Protector Client software has been installed on all nodes of the Microsoft SQL Server setup which should be protected.
- The Protector Client software has been installed on the node that will act as a proxy for the Hitachi storage device where the SQL Server data is located. Note that for a Thin Image snapshot, the source and destination LDEVs are located on the same device.
- The block storage device has been set up as per the Protector requirements and prerequisites. Refer to Hitachi Block prerequisites.
- Permissions have been granted to enable the Protector UI, required activities and participating nodes to be accessed. In this example all nodes will be left in the default resource group, so there is no need to allocate nodes to user defined resource groups.
- A user has been created that provides the required privileges as detailed in Microsoft SQL Server User Privileges. This user will be required when creating the SQL Server classification in the steps that follow.
This task describes the steps to follow when snapshotting databases that reside on a Hitachi Block storage device. The data flow and policy are as follows:
Figure. Microsoft SQL Server Node
| Classification Type |
Parameters |
Value |
| Microsoft SQL Server Database |
Node |
Microsoft SQL Server application node hosting the instance. |
| Instance |
Instance hosting the databases |
| User |
User for backup |
| Included Items |
Refer to Microsoft SQL Server Database Selection Wizard on how to include database into the backup |
| Backup Mode |
Full Copy |
| Replica Backup Preference |
Primary |
| Operation Type |
Parameters |
Value |
Assigned Nodes |
| Snapshot |
Mode |
Hardware |
SQL Server application node |
| Hardware Type |
Hitachi Block |
| Run Options |
Run on RPO |
| RPO |
2 hours |
| Retention |
2 days |
-
Locate the source OS
Host nodes for your Microsoft SQL Server environment in the Nodes Inventory and check that the nodes are authorized and
online.
These nodes represent the Protector Clients installed on your Microsoft SQL Server environment.
-
Create a new SQL Server node (unless a suitable one already
exists) using the Microsoft SQL Server Node Wizard.
The
SQL Server node type is grouped under
Application in the
Node Type Wizard.
- Select one node which is part of your Microsoft SQL Server
environment.
- Select which configuration you want the SQL Server node to represent.
In case of a standalone system you will only have one option. In the case of a
clustered system, you can choose if the application node should represent just this
host or a clustered instance.
-
Locate the node in the Node Inventory that will control the Hitachi Block Device via a CMD
(Command Device) where the SQL Server database data is located. Check that the node is
authorized and online
This node is used by Protector to orchestrate snapshot creation and is identified as the
Proxy Node when creating the Hitachi Block Device node in the next step. This node is known as
an ISM (Intelligent Storage Manager) node. The ISM node does not appear in the data flow.
-
Create a new Hitachi Block Device node (unless one already exists) using the Block Storage Node Wizard and check that it is authorized and
online.
The Hitachi Block Device node type is grouped under
Storage in the Node Type
Wizard. Note that this node does not appear in a SQL Server snapshot data flow
diagram but is identified when assigning the snapshot policy
- Define a policy as shown in the table above using the Policy Wizard, Microsoft SQL Server Classification Wizard and Snapshot Operation Wizard.
The SQL Server classification is grouped under Application in the Policy Wizard.
- Steps 7 to 11 have to be repeated for every replica that uses a separate storage node, to configure a snapshot pool for each storage.
- Place the SQL Server Availability Group Node using the Data Flow Wizard.
At this stage, the snapshot icon

is not shown.
- Select the node you just added. In the AG Node Selection, choose all Servers which are connected to the current storage. If multiple replicas share the same storage they can be selected together.
- Assign the Snapshot operation to the SQL Server source node you just added. The SQL Server-Snapshot policy will then be assigned automatically. The Block Snapshot Configuration Wizard is displayed.
- Select the Storage Node corresponding to the Hitachi Block Storage device where the SQL Server database’s data is located for this replica. Then select a Snapshot Pool from one of the available Thin Image or hybrid pools.
-
Leave the remaining Advanced Configuration options at their default settings, then
click OK.
Tip: Using Cascade mode (the default setting) will allow the database to be
used for reverts after it has been mounted.
The snapshot icon

is now shown superimposed over the source node.
- Repeat steps 7-11 until all storage arrays are configured.
-
Compile and activate the data flow, checking carefully that there are no errors.
-
Locate the active data flow in the Monitor Inventory and open its
Monitor Details.
The policy will be invoked automatically to create a snapshot repeatedly according to
the RPO specified in the policy. The policy can also be manually triggered from the source
node in the monitor data flow.
-
Watch the active data flow via the Monitor Details to ensure the policy is operating as
expected.
You should periodically see:
- Backup jobs appearing in the Jobs area below the data flow
that show progress percentage, ending in Progress - Completed.
- Information messages appearing in the Logs area below the
data flow indicating rules activation and snapshot events.
-
Review the status of the Hitachi Block Device to ensure snapshots are being
created.
New snapshots will appear in the Block Snapshot
Inventory periodically as dictated by the RPO of the policy. Old
snapshots will be removed periodically as dictated by the Retention
Period of the policy.