Avamar: MCS does not start after a rollback: "GSAN rollbacktime does not match stored rollbacktime"
Summary: The Management Console Server (MCS) does start after a rollback, reporting "GSAN rollbacktime does not match stored rollbacktime." (Applicable to Virtual Backup Appliance (VBA), Integrated Data Protection Appliance (IDPA), and any Avamar configuration) ...
This article applies to
This article does not apply to
This article is not tied to any specific product.
Not all product versions are identified in this article.
Symptoms
After the GSAN was rolled back, the Management Console Server (MCS) does not start.
The "gsan rollbacktime does not match stored rollbacktime" is seen in the output file /usr/local/avamar/var/mc/server_data/mcserver.out:
Database server is running...
INFO: Starting messaging service.
INFO: Started messaging service.
=== BEGIN === check.mcs (prestart)
check.mcs passed
=== PASS === check.mcs PASSED OVERALL (prestart)
Starting Administrator Server...
schedule_version key has value: 7.1.0.1, expecting value: 7.1.1.1.
The Administrator Server preferences file needs to be updated.
ERROR: gsan rollbacktime: 1495040451 does not match stored rollbacktime: 1477305907 Cause
The timestamps between the MCS and GSAN differ if the GSAN was rolled back to a previous point in time.
Resolution
1. Force an MCS restore so the MCS and GSAN are synced:
dpnctl start mcs --force_mcs_restore
Identity added: /home/dpn/.ssh/dpnid (/home/dpn/.ssh/dpnid)
dpnctl: INFO: Restoring MCS data...
dpnctl: INFO: MCS data restored.
dpnctl: INFO: Starting MCS...
dpnctl: INFO: To monitor progress, run in another window: tail -f /tmp/dpnctl-mcs-start-output-nnnnn
dpnctl: INFO: MCS started.
2. Verify that the service is running:
dpnctl status mcs
Identity added: /home/admin/.ssh/admin_key (/home/admin/.ssh/admin_key)
dpnctl: INFO: MCS status: up.
3. Restart the backup scheduler:
dpnctl start sched
Identity added: /home/admin/.ssh/admin_key (/home/admin/.ssh/admin_key)
dpnctl: INFO: Resuming backup scheduler...
dpnctl: INFO: Backup scheduler resumed.
dpnctl: INFO: No /usr/local/avamar/var/dpn_service_status exist.
4. Verify that all required services are up:
dpnctl status
dpnctl: INFO: gsan status: up
dpnctl: INFO: MCS status: up.
dpnctl: INFO: emt status: up.
dpnctl: INFO: Backup scheduler status: up.
dpnctl: INFO: Maintenance windows scheduler status: enabled.
dpnctl: INFO: Unattended startup status: enabled.
dpnctl: INFO: avinstaller status: up.
dpnctl: INFO: ConnectEMC status: down.
dpnctl: INFO: ddrmaint-service status: up.
dpnctl: INFO: [see log file "/usr/local/avamar/var/log/dpnctl.log"]
Affected Products
Avamar, PowerProtect Data Protection ApplianceArticle Properties
Article Number: 000077888
Article Type: Solution
Last Modified: 16 Oct 2025
Version: 7
Find answers to your questions from other Dell users
Support Services
Check if your device is covered by Support Services.