Dell EMC Unity: Replication session encountered an error that halted its progress (User Correctable)
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Symptoms
Customer stated he received the below error on his ongoing Replication session:
Replication session rep_sess_ovm_HQ-2-COLO encountered an error that halted its progress
Cause
This issue is because the snap is truncated and deleted, but the replication is not aware of it and when enumerate finds a difference between snaps, replication failure happens.
Resolution
Pausing and resuming the session resolved the issue.
The fix to avoid this issue is included in release 4.4.x for Unity.
The fix to avoid this issue is included in release 4.4.x for Unity.
Affected Products
Dell EMC Unity FamilyProducts
Dell Unity 300, Dell EMC Unity 300F, Dell EMC Unity 350F, Dell EMC Unity 400, Dell EMC Unity 400F, Dell EMC Unity 450F, Dell EMC Unity 500, Dell EMC Unity 500F, Dell EMC Unity 550F, Dell EMC Unity 600, Dell EMC Unity Family |Dell EMC Unity All Flash
, Dell EMC Unity Family, Dell EMC Unity Hybrid
...
Article Properties
Article Number: 000057347
Article Type: Solution
Last Modified: 18 Apr 2026
Version: 4
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