Cirrus Migrate Cloud for Linux and Windows (CMC) is the software package deployed to a Linux/Windows Host to facilitate data migration. CMC for Windows and CMC for Linux are always released at the same time. Semantic versioning (SemVar) scheme is used.

Every update may include bug fixes, performance enhancements, and other general reliability improvements. This article highlights what is new and what has changed between each releases, as well as upcoming changes.

The following page may contain information related to upcoming features and products. Those information presented here is for informational purposes only, and should not be used for project planning or purchasing purposes. Please contact support if you need additional information.

Migration Schedule Support
WIth CMC version 5.0.0, migration schedule can be configured when creating migration session. Refer to Cirrus Data Cloud Updates and Changes for more details.

Ability to Skip Bad Sectors (Windows mTDI 11.3+)
During migration, if there are sector in a volumes that cannot be read, migration session will be in error. A new CLI utility has been added to allow these sectors to be skipped from migration. Given the purpose of this feature is to salvage as much data as possible from a malfunctioning volume, it should be used with caution. Contact support for more details.

Migration Session Error Status Explanations
When a migration session goes into "In Error" state, a new help article will be available to explain the errors in detail.


Migration Auto Re-Sync will not be triggered on volumes in error

Scheduled automatic resynchronization will not be automatically triggered on volumes that encountered synchronization error. This change is made to reduce impact on volumes that are already unhealthy such as having bad sectors, etc.

Other Enhancement / Fixes
💊 [Linux]: X-Rays can now be taken on hosts that have /tmp directory on a different partition


X-Rays are now supported with CDC Management Relay

X-ray packages can now be uploaded to Cirrus Data Cloud via CDC Management Relay.

Other Enhancement / Fixes
💊 [Integrations]: DellEMC integrations will now run on arrays that never performed any health checks.
💊 [Integrations]: Enhanced error messages from DellEMC integration for easier troubleshooting.
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