Search Engine: Elastic

Article ID: 122497, created on Jul 28, 2014, last review on Oct 17, 2014

  • Applies to:
  • Operations Automation 6.0
  • Operations Automation 5.5


In a newly deployed Exchange 2013 with the latest Cumulative Update 5 on POA 5.5.x, OAB is not generated on the Mailbox server and the following error can be seen in Event Viewer:

Generation of OAB "\S000000019 OAL" failed. ... S:Exp=System.DivideByZeroException: Attempted to divide by zero. ...


Zero values for OABGeneratorWorkCycle and OABGeneratorWorkCycleCheckpoint properties of the mailbox servers configured by POA cause Exchange 2013 CU5 fail to generate OABs with the "divide by zero" error.


To fix this problem, the following cmdlet should be executed in Exchange Management Shell on any Exchange 2013 Mailbox server:

$timeSpanMax = [TimeSpan]::MaxValue; Get-MailboxServer | Set-MailboxServer -OABGeneratorWorkCycle $timeSpanMax -OABGeneratorWorkCycleCheckpoint $timeSpanMax

5356b422f65bdad1c3e9edca5d74a1ae caea8340e2d186a540518d08602aa065 2554725ed606193dd9bbce21365bed4e e12cea1d47a3125d335d68e6d4e15e07 5b048d9bddf8048a00aba7e0bdadef37 956c448bddc7e1f3585373687602379f 6f1456866eed87488c0f02b298a741c0

Email subscription for changes to this article
Save as PDF