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# Provision storage for file

Embedded NAS (eNAS) integrates the file-based storage capabilities of VNX arrays into storage systems.

## Prerequisites

- The storage system must be running HYPERMAX OS 5977 or PowerMaxOS 5978.
- To complete this task, you must be a StorageAdmin.

## About this task

This procedure explains how to provision storage to eNAS data movers.

To provision storage for file:

## Steps

1. Select the storage system.
2. Select System > File.
   The File Dashboard is displayed.
3. If prompted, type the username and password you use to access the eNAS control station, and click OK.
4. In the Actions panel, click Provision Storage for File to open the Provision Storage for File wizard.
5. Supply a Storage Group Name.
   Each storage group name is unique among the storage groups on the storage system and has up to 64 characters. Use only alphanumeric characters, underscores ( _ ), and dashes (-) in the name. Storage group names are case-insensitive.
6. To select a Storage Resource Pool other than the default (DEFAULT_SRP), select one from the drop-down menu. To create the storage group without an SRP, select None.
7. Select the Service Level that you want to set on the SG.

   Service levels specify the characteristics of the provisioned storage, including average response time, workload type, and priority. This field defaults to None if you set the Storage Resource Pool to None. Available values are:

   Table 1. Service level values
   Service level | Performance type | Use case
   --- | --- | ---
   Diamond | Ultra high | HPC, latency sensitive
   Platinum | Very high | Mission critical, high rate OLTP
   Gold | High | Very heavy I/O, database logs, datasets
   Silver | Price/Performance | Database datasets, virtual applications
   Bronze | Cost optimized | Backup, archive, file
   Optimized (default) | Optimized | Places the most active data on the highest performing storage and the least active on the most cost-effective storage

   For all-flash storage systems, the only service level available is Diamond and it is selected by default.
8. Refine the service level by selecting the Workload Type that you want to assign to it.
9. Type the number of Volumes and select the Capacity of each.
10. Optional: Click Edit () and set any number of the following advanced options for the storage group:
    - To factor the R1 volume statistics into the move decisions that are made for the R2 volume, select RDF Coordination. You can set this attribute on a storage group, even when there are no SRDF volumes in the storage group. This feature is only available if the storage system is part of an SRDF setup.
    - To allocate capacity for each SG volume, select Allocate capacity for each volume.
    - To persist preallocated capacity through reclaim or copy, select that check box.
11. Optional: To add a child storage group, do one of the following: click and
    - On all-flash storage systems, click Add Storage Group.
    - On all other storage systems, click Add Service Level.
    Specify a Name, Service Level, Workload Type, Volumes, and Capacity.

    Repeat this step for each additional child storage group. The maximum number of allowed child storage groups is 64.

12. Optional: Click Snapshop Policies to select up to a maximum of 4 snapshot policies.
13. Optional: Select the Enable Data Reduction checkbox.
14. Click Next.
15. Optional: On the Review page of the wizard, follow these steps to manually set the LUN addresses for the masking operation:
    1. Click Set Dynamic LUNs.
       The Set Dynamic LUN Addresses dialog opens.
    2. Note the address that is displayed in the Starting LUN field:
       - To accept this automatically generated address, click Apply Starting LUN.
       - To move to the next available address , click Next Available LUN.
    3. Optional: Click Enable compliance alerts.
    4. Click OK.
16. Optional: To set host I/O limits for the storage groups, click Set Host I/O Limits.
17. Do one of the following:
    - Click Run Now to perform the operation now.
    - Expand Run Now and click Add to Job List to add this task to the job list, from which you can schedule or run the task at your convenience. For more information, see Schedule jobs and Preview jobs.