I am considering a configuration change as follows:
Set FlexVols to auto-grow at 90%
Set OCUM Alert for Volume Almost Full to 92%
Set OCUM Alert for Volume Full to 95%
This keeps OCUM from alerting until the auto-grow feature has reached its Max Autosize limit and I know that when OCUM triggers an alert that its time to investigate.
As we have it setup now...
FlexVols auto-grow at 98%
OCUM alerts for Volume Almost Full to 90%
OCUM alerts for Volume Full to 95%
So we're seeing alerts before autogrow has a chance to do its job... e-mail "white noise" at best.
My questions for the group:
Is my proposed configuration above a wise approach or does it set me up for something bad down the line?
Have you found a more practical configuration to balance auto-grow with volume capacity alerting?
I plan to resize those volumes that are already at/above 90% prior to modifying the volumes - rather than change the threshold and have Ontap resize the first time.
Thank you for any replies!