SnapProtect - SnapProtect for Open Systems - Getting Started – NetApp

Create a Replication Storage Policy

Create a replication storage policy, which will define a single dataset manager.

  1. From the CommCell Browser, navigate to Policies.

    Right-click Storage Policies and click New Storage Policy.

  2. Type the Storage Policy name in the Storage Policy Name box

    Select the SnapProtect for Open Systems box and click OK.

    Click Next.

    Please assign the provisioning policy and the resource pools by going to the primary snap copy properties.

  3. Select a Location to store the index information, and click Next.

  4. From the MediaAgent list, select the name of a MediaAgent that will be used to create the primary copy.

    Click Next.

  5. Click Next to accept default values for the Retention Criteria.

    If necessary, these values can be modified later.

  6. Select or Add the OnCommand Unified Manager information:

    Select a server with Unified Command Manager 5.x. Even though servers with OnCommand Unified Manager 6.0 or later might appear in the drop down list, do not select any server with OnCommand Unified Manager 6.0 or later, since SnapProtect for Open Systems is not supported.

    Click Next.

  7. Click Finish.
  8. From the CommCell Browser, navigate to Policies | Storage Policies | <Storage_Policy>.

    The replication policy appears in the right pane of the CommCell Browser.

Setup of the Provisioning Policy

  1. From the CommCell Browser, navigate to Policies | Storage Policies | <Storage_Policy>.

    Right-click <Primary (Snap) > and click Properties.

    The Storage Policy Properties dialog box appears.

  2. Click the Provisioning tab.

    Click Refresh to display the entities.

    Select the Provisioning Policy from the drop-down list.

    OnCommand Manager Unified Manager has three pre-defined provisioning policies for SnapProtect.

    Such policies will be picked up automatically by SnapProtect and will be displayed in the Provisioning tab of the Snap Copy Properties dialog box.



    SnapProtect_Dedupe Recommended for SnapVault Destinations

    Has on demand de-duplication enabled on secondary volumes

    Has RAID-DP (double disk failure) enabled that protects against double disk failures

    SnapProtect_Mirror_Destination Recommended for Mirror destinations

    Does not have de-dupe or RAID-DP enabled

    SnapProtect_RAID-DP Has RAID-DP (double disk failure) enabled which protects against double disk failures

    To use a provisioning policy from the OCUM server, prefix the provisioning policy name with the string "SnapProtect_".

    Select the Resource Pools available from the list.

    Click OK.

Setup of the Array Information

Once you added the Resource Pools as described in the above section, add the arrays that appeared in the Resource Pools to the Array Management. The step-by-step instructions for setting up the array information are the following.

  1. From the CommCell Browser, click the Storage tab and then click the Array Management icon.

    The Array Management dialog box appears, click Add.

  2. The Filer Properties dialog box appears.

    Select NetApp from the Snap Vendor list.

    Specify the name of the secondary file server in the Name field.

    The name of secondary file server may be different in the OnCommand Unified Manager, CommServe, MediaAgent and other entities, but it should resolve to the same IP address.

    Click Change and enter the access information of a user with administrative privileges in the Username and Password fields in the Enter User Name and Password dialog box.

    The user should be able to perform the following:

    Create/delete snapshots, volume & lun clones, cifs shares & nfs exports, initiator groups.

    Select File Server for the array type. Use the Description field to enter a description about the entity. This description can include information about the entity's content, cautionary notes, etc.

  3. Click OK.
  4. In the Filer Properties dialog box, click the Snap Configuration tab. (The configuration of the Snap Configuration tab is optional.)

    In the Initiator Group Name box, specify the name of the initiator group to be configured on the client computer and proxy computer to access the array.

    In the Mount Retry Count box, type or select the number of retry attempts for a mount operation.

    In the Mount Retry Interval (in seconds) box, type or select the time interval after which the next mount operation will be attempted.

    Click OK.

Configure Backup Copy

Follow the steps given below to configure Backup Copy for moving snapshots to media.

  1. From the CommCell Browser, navigate to Policies | Storage Policies.

    Right-click the <Storage Policy> and click Properties.

  2. Click the Snapshot tab.

    Select Enable Backup Copy to enable backup copies.

    Click OK.

Associate Subclients

Use SPOS supported agents for SPOS storage policies. Any association should be done with SPOS supported subclients.

Backing up system state with SPOS is not supported.

Backing up the default subclient for the File System agent with a SnapProtect for Open Systems enabled storage policy is not supported.

Do not associate default subclients with any SnapProtect for Open Systems enabled storage policy.

No DAG support for Exchange.

No support for Always On for SQL.

For Oracle, log and data on the same volume is not supported; no support for partial table backups, i.e., no support for online subset backup option; and RAC and ASM are not supported.

The replication workflow pick ups only those subclients whose data policy is the same as the storage policy on which the workflow was launched and not the subclient whose log policy is the same the storage policy on which the workflow was launched.

The replication workflow converts all SQL jobs to FULL. You can run transaction log backups only from the subclient.

On UNIX systems, the source volume mount path is used to derive the name of the qtree on the volume on the destination array, which contains the replicated data of the source volume.

Format of the destination qtree name:


SnapProtect normalizes the source volume mount path by removing all non-alphanumeric values from the source volume mount path. For example, the mount point /a/b/c is normalized to abc.

The following example illustrates how a subclient with multiple volume mount paths can result in the same destination qtree:

Subclient ID: 10, Client ID: 20, Storage Policy ID: 20, Agent type ID: 40

Mount Path Destination qtree
/a/b/c /vol/destination_volume/App_20_30/40/10/abc
/abc /vol/destination_volume/App_20_30/40/10/abc

If the path value is either a/b/c or /abc, data is copied to the destination qtree as /vol/destination_volume/App_20_30/40/10/abc.

No distinction is made between a normalized path for a source subclient and a similarly named destination qtree. Therefore, make sure that multiple paths added to the same subclient do not normalize to the same destination qtree.

Enabling Optimized Scan for Windows Files Systems Subclients

The Optimized Scan feature improves the data scan capabilities of an agent by determining the files that have changed and/or been backed up. Optimized Scan provides a faster method of data scan during regular as well as SnapProtect backups.

By default, Optimized Scan is selected as the default method for scanning files to determine which files have changed and/or have been backed up. Optimized Scan is the preferred method of scanning the files during a regular and SnapProtect backup and for SPOS subclients, as this method is much faster as compared to the Recursive Scan.

To enable optimized scan, follow these steps before the first backup:

  1. From the CommCell Console, navigate to <Client> | <Agent> | defaultBackupSet | Subclient.
  2. Right-click the Subclient and select Properties. The Subclient Properties dialog box appears.
  3. Click the Advanced Options tab.
  4. Click Optimized Scan.
  5. Click OK to save the information.

Associate Multiple Subclients

You can configure multiple subclients as part of the fan-in by associating to that same storage policy, which defines the grouping affinity relationship.

  1. From the CommCell Browser:

    Navigate to Client Computers | <Client> | <Agent>.

    Right-click the <Subclient> and select Properties.

  2. Click the Storage Device tab.

    In the Storage Policy box, select a storage policy name for the subclient.

  3. Click OK.
  4. Repeat steps 1 and 2 to associate more subclients.