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Hitachi Universal Volume Manager
Santa Clara, California, USA
What it is
Hitachi Universal Volume Manager virtualizes storage devices so different storage system models can be used as one system. Hosts access mapped external volumes through the local storage system in the same way as local volumes. Listed uses include backup, assigning external volumes to hosts, and moving data from an older storage system. External connections use Fibre Channel; iSCSI is also available for VSP One Block. Only block storage is supported as an external system. The guide documents supported systems from other vendors and a generic Fibre Channel profile for systems conforming to part of standard SCSI Primary Commands. UVM operations are available through REST API, Storage Advisor Embedded, and CCI, and mapped volumes can work with related Hitachi storage products. On VSP One Block, up to 4,096 external systems can be connected, with as many as eight mapping paths per external volume. Each mapped volume is limited to 256 TB, and data above that size cannot be accessed. A license on the local storage system is required; pricing is on request.
For and against
For
- Hosts use mapped volumes like local volumes
- Supports backup, host allocation, and data migration
- Offers REST API, Storage Advisor Embedded, and CCI
- Supports up to eight mapping paths per volume
Against
- Non-block external storage is unsupported
- Mapped volumes are limited to 256 TB
- Requires a local-system license; pricing is on request
The verdict
Universal Volume Manager presents supported external block storage through a local storage system and supports several documented storage-management workflows. Check compatibility, capacity limits, and licensing requirements before planning a connection.
Who it suits
UVM suits storage teams configuring external storage connections and managing volumes on a local system for host access. It is intended for block-storage workloads and supports hybrid deployment.
Plans and prices
Universal Volume Manager license
Requires a license on the local storage system
Read 2 Oct 2026 · docs.hitachivantara.com
On the record
- Compatible storage type
- Only block storage can be connected as an external storage system; non-block storage is unsupported.docs.hitachivantara.com · read 2 Oct 2026
- Connections
- External paths use Fibre Channel, with iSCSI also available for VSP One Block 85.docs.hitachivantara.com · read 2 Oct 2026
- Interoperability
- The guide documents supported external systems from other vendors and provides a generic Fibre Channel profile for systems conforming to a subset of standard SCSI Primary Commands.docs.hitachivantara.com · read 2 Oct 2026
- Limits
- For VSP One Block, up to 4,096 external storage systems can be connected and each external volume can have up to eight mapping paths.docs.hitachivantara.com · read 2 Oct 2026
- Management interfaces
- The documentation identifies REST API, Storage Advisor Embedded, and CCI as interfaces through which UVM operations can be performed.docs.hitachivantara.com · read 2 Oct 2026
- Purpose
- Universal Volume Manager virtualizes storage devices so different storage system models can be used as one storage system.docs.hitachivantara.com · read 2 Oct 2026
- Related storage software
- Mapped external volumes can be used with products including Dynamic Provisioning, Global-active device, ShadowImage, TrueCopy, Universal Replicator, and Volume Migration.docs.hitachivantara.com · read 2 Oct 2026
- Support
- The guide advises contacting customer support for connection type details and says support can install and connect external storage using the generic UVM profile.docs.hitachivantara.com · read 2 Oct 2026
- Use cases
- The documentation lists backup, allocating external volumes to hosts, and migrating data from an older storage system as uses for external volumes.docs.hitachivantara.com · read 2 Oct 2026
- Volume capacity
- The documented maximum mapped external volume capacity is 256 TB per volume, and data beyond that capacity cannot be accessed.docs.hitachivantara.com · read 2 Oct 2026
- Volume mapping
- Mapped external volumes can be used from the host in the same way as volumes in the local storage system.docs.hitachivantara.com · read 2 Oct 2026
- Who it is for
- The documentation describes the feature for configuring and managing storage connections and volumes on a local storage system, with hosts accessing external volumes through that system.docs.hitachivantara.com · read 2 Oct 2026
