Posts tagged ‘Veeam’

DC & Exchange loses connection during VEEAM Backup

Problem:

Outlook users get disconnected periodically (at the same time everyday).

When we analyzed the situation, we found out that the issue coincides with the backup windows. Further, investigation reveals that it happens exactly at the time of VMware snapshot removal stage, and this is quite normal ,since the VM will experience a longer VM stun.(Can be confirmed by looking in to the vmware.log). This  was causing the VM (Domain Controller) to freeze,  and at this time the Exchange triggers a Netlogon error with the eventID 5719 because  it loses the connection to the domain controller. The outlook users (Desktop & Smartphone) will be forced to re-open the email client or re-enter the credentials.

Solution:

So to avoid this , we had to convert the  backup job from VM based to an Agent based. The agent based backup uses the  VSS instead of VMware API triggered VM based snapshots.

Once the above is changed , we did not see any Netlogon event ID 5719 appeared and the users did not complain thereafter.

Good Luck

June 25, 2020 at 1:01 pm Leave a comment

Veeam Backup Repository Sizing

Folks who wants to size the Backup Repository for their Veeam Deployment , could make use of the online sizing tool below for their calculations.

http://rps.dewin.me/

It is very user friendly and output is much descriptive.

 

Good Luck.

 

 

November 25, 2018 at 2:30 pm Leave a comment

How to expire Veeam Backup Jobs

When using Veeam B&R  , if you had to face a situation where you need to expire the old backups to free up some disk space you need to follow slightly a different approach. As mostly in other cases (especially VERITAS) you could simply change the retention period to a lower value and need to  restart the services , you could notice the backup files have been disappeared. In Veeam you need to go through the below steps.

  • Remove the backup files manually (recommended to clear the files created by the last incremental jobs  until you reach to the last full backup).
  • Reduce the backup pointer to a lower value in your backup job.
  • Then you need to start the jobs manually or wait for the next schedule.

October 15, 2018 at 11:25 am Leave a comment


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