Hitachi Universal Volume Manager (UVM) connects external block storage to a local storage system and presents mapped volumes to hosts like local volumes. Documented uses include assigning external capacity to hosts, backup, and moving data from older storage. External paths use Fibre Channel; iSCSI is also available for VSP One Block. UVM documents compatible systems from other vendors and provides a generic Fibre Channel profile for systems conforming to part of the standard SCSI Primary Commands. Operations can be managed through REST API, Storage Advisor Embedded, or CCI. Mapped volumes can be used with related products such as Dynamic Provisioning, Global-active device, ShadowImage, TrueCopy, Universal Replicator, and Volume Migration. On VSP One Block, up to 4,096 external storage systems can be connected, with up to eight mapping paths per external volume. Each mapped volume is limited to 256 TB; data beyond that limit cannot be accessed. UVM requires a license on the local storage system, and pricing is on request.
Who it is for
UVM is for teams configuring storage connections and volumes on a local storage system, with hosts accessing external volumes through it. It may suit storage administrators managing supported block systems or planning storage migration.
What is good
- Presents mapped external volumes to hosts as local volumes.
- Supports backup, host allocation, and migration use cases.
- Offers REST API, Storage Advisor Embedded, and CCI management.
- Works with listed related Hitachi storage products.
What to know first
- Only block storage can connect as external storage.
- Mapped external volumes are limited to 256 TB each.
- Requires a local storage system license.
- Pricing is available on request.
Verdict
UVM can bring compatible external block storage under a local system's management and expose its mapped volumes to hosts. Check supported systems, connection types, license requirements, and the per-volume capacity limit.
Hitachi Universal Volume Manager plans and pricing
All plansCompared on storage management software
- Rollback or recovery
- Yes
- Behavioral detection
- Yes
- Immutable recovery copy
- Yes
- Deployment
- hybrid




