Creating a file system

Virtual Storage Platform One File Administrator User Guide

Version

1.7.x

Audience

anonymous

Part Number

MK-24VSP1F003-09

ft:lastEdition

2026-04-07

You can create one or more file systems.

The following video will walk you through creating a file system.

Video

A storage pool must be created before a file system can be created. To create a storage pool, see Creating a storage pool.

Navigate to Provisioning > Capacity > File Systems.
In the File Systems pane, click Create File System.
In the Storage Pool page of the Create File System wizard, enter the name for the file system, select the required storage pool, and then click Next.
In the Configuration page, complete the following information, and then click Next.
1. Select one of the following options to specify the file system size allocation:
  - Select On Demand to create a small file system, allowing it to expand to the size limit automatically.
    In the Initial Size and Size Limit boxes, enter the initial size for the file system and the size limit in GiB, TiB, or PiB.
  - Select Now to create the file system to the full size specified by the size limit.
    In the Size Limit box, enter the initial size for the file system in GiB, TiB, or PiB.
    You can expand the file system a maximum of 1 TiB at a time.
2. (Optional) Set the Default Snapshot Retention toggle to Enable to set a default retention period for file system snapshots. This toggle is disabled by default.
  The default snapshot retention period determines how long a snapshot on the file system remains before it is deleted. You can override this period if you manually create the snapshot. However, if the snapshot is created automatically, the default retention period cannot be overridden.
  
  Snapshots create near instantaneous, read-only images of an entire file system at a specific point in time. You can use snapshots to restore lost files without having to retrieve the data from backup media. For more information about creating and managing snapshots, see Snapshots.
3. From the Assign to EVS list, select the EVS to assign to the file system.
4. (Optional) Set the Object replication target toggle to Yes to configure the file system as the intended target of an object replication.
  Object replication uses policies and schedules to determine which file systems are replicated, where they are replicated, and when replication jobs are run. For more information about creating and managing object replication, see Replication.
5. (Optional) Set the Enable Deduplication toggle to Enable to enable deduplication on the file system.
  
  Deduplication is a file system feature that incorporates enhancements to the file system and the application layer. Deduplication features the ability to reduce redundancy in stored data blocks. All data in the specified file system is scanned at intervals and duplicate blocks are removed, resulting in reclaimed disk space. All deduplication activity and the elimination of redundant blocks is transparent to the user.
  
  This option is available only if you are creating the file system on a Hitachi Virtual Storage Platform 5000 series managed server.
6. Select 32 KiB or 4 KiB as the block size for the file system.
7. (Optional) Set the Enable WORM toggle to Yes to configure the file system to WORM.
  
  A WORM (Write Once Read Many) file system stores data in an immutable state where files cannot be modified, renamed, deleted, or have permissions changed. However, the file system allows expansion of storage to accommodate more files.
  
  A WORM file system is useful for regulatory compliance and long-term data retention.
In the Summary page, review the information about the file system, and then click Create. Alternatively, you can add another file system by clicking Create & add another.

After the file system is created, you can configure additional settings such as enabling thin provisioning or setting usage thresholds. To configure additional settings, see Configuring a file system.