Dell Unity: One reason for Replication status to be Unknown (User Correctable)
Summary: This KB describes one of the causes of the Unknown status of Replication.
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This article is not tied to any specific product.
Not all product versions are identified in this article.
Symptoms
Replication Status is shown as Unknown.
# uemcli -no /prot/rep/session -name XXXXXXXXXX show 1: ID = 1717986919XX_VIRT1615KVBXXX_0000_1717986919XX_VIRT2213XBSXXX_0000 Name = XXXXXXXXXX Session type = file Synchronization type = auto RPO = 1h 00m Sync State = idle Health state = Unknown (0) Operational status = Unknown (0x0) Time of last sync = 2023-MM-DD 02:14:55 Sync status = Element pairs = N/A
Cause
This event occurs when the following two conditions are met.
(1) User Snapshot is set to Replication.
(2) User Snapshot has reached its maximum on the Destination side and a new Snapshot cannot be created.
(1) User Snapshot is set to Replication.
(2) User Snapshot has reached its maximum on the Destination side and a new Snapshot cannot be created.
Resolution
If the problem is due to the number of snapshots, follow the steps below to improve the Replication status.
(1) Delete unnecessary Snapshots on the Destination side.
(2) Pause and resume Replication.
(1) Delete unnecessary Snapshots on the Destination side.
(2) Pause and resume Replication.
Additional Information
- The maximum number of snapshots that can be created is described in Support Matrix.
https://elabnavigator.dell.com/vault/pdf/EMC_Unity_ESSM.pdf
Example:
- The maximum number of snapshots and the current number of snapshots for Unity can be checked with the following command.
svc_storagecheck --list |grep "CheckpointSnaps"
Example output:
https://elabnavigator.dell.com/vault/pdf/EMC_Unity_ESSM.pdf
Example:
- The maximum number of snapshots and the current number of snapshots for Unity can be checked with the following command.
svc_storagecheck --list |grep "CheckpointSnaps"
Example output:
svc_storagecheck --list |grep "CheckpointSnaps" MaxCheckpointSnaps : 500 CountCheckpointSnaps : 500
Affected Products
Dell EMC Unity, 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 600Products
Dell Unity 450F DC, Dell Unity 300, Dell Unity 300 DC, Dell Unity 350F DC, Dell EMC Unity XT 380, Dell EMC Unity XT 380F, Dell Unity 400 DC, Dell EMC Unity XT 480, Dell EMC Unity XT 480F, Dell EMC Unity 600F, Dell EMC Unity 650F
, Dell EMC Unity XT 680, Dell EMC Unity XT 680F, Dell EMC Unity XT 880, Dell EMC Unity XT 880F, Dell EMC Unity Family |Dell EMC Unity All Flash, Dell EMC Unity Family, Dell EMC Unity Hybrid, Dell Unity Operating Environment (OE), Dell EMC UnityVSA Professional Edition/Unity Cloud Edition
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Article Properties
Article Number: 000216468
Article Type: Solution
Last Modified: 26 Oct 2023
Version: 4
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