Cirrus Migrate Cloud vs Hitachi Universal Volume Manager

Cirrus Migrate Cloud is a web-based service for moving block-storage data to and between cloud environments. It can migrate data while workloads remain in use, helping organizations continue operating during the move. Cirrus Data says its Transparent Data Intercept and cMotion technologies support minimal-downtime migrations. The service provides more than 30 block-storage plugins, automated migration operations, predefined playbooks, actionable insights, cutover orchestration, and migration reporting. It supports Windows and Linux workloads and is described as working with any block-storage vendor or public cloud, with migrations from hypervisors, bare metal, or hosted environments. It is available through the AWS, Microsoft Azure, and Oracle Cloud marketplaces. Cirrus Data says data is encrypted in flight using AES 256-bit encryption; its Customer Center offers basic and premium support 24x7x365. The general service is paid with pricing on request, and its product page invites visitors to schedule a demo. A separate Amazon FSx for NetApp ONTAP trial offers 1 TB free for 30 days. The service is aimed at organizations moving block storage across on-premises, cloud, and multicloud environments.

Hitachi Universal Volume Manager connects external block storage to a local storage system and maps its volumes for host access. Hosts can use those mapped volumes in the same way as volumes held in the local system. Documented uses include assigning external volumes to hosts, backup, and moving data from an older storage system. Connections use Fibre Channel; iSCSI is also available for VSP One Block. The guide identifies supported third-party systems and provides a generic Fibre Channel profile for systems that meet part of the standard SCSI Primary Commands set. Operations are available through the REST API, Storage Advisor Embedded, and CCI. Mapped volumes can be used with other storage products, including Dynamic Provisioning, TrueCopy, ShadowImage, and Universal Replicator. For VSP One Block, up to 4,096 external storage systems and eight mapping paths per external volume are supported. Each mapped external volume is limited to 256 TB; data above that capacity cannot be accessed. The feature requires a license on the local storage system, and pricing is on request.