False event in CV event viewer

Last post 07-11-2018, 10:46 AM by alligator89. 5 replies.
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  • False event in CV event viewer
    Posted: 06-27-2018, 9:10 AM

    I'm getting false event (14:196) regarding the index cache usage

    The event detail is as follows:

    Index cache [/commvault/IndexCache] free space on MediaAgent [ProdMA_CA] is [34034] MB.  It is considered critically low. Backups will start failing if the cache runs out of space. 

    Take one of the following actions:  
    1. Increase the index cache total disk space.
    2. Reduce the retention setting on the index cache.
    But the actual usage of /commvault less and there is enough space available.
    Also this particular Media Agent is configured only to take Oracle Dbase backup.
    So ideally it is not using IndexCache so why does it still throwing this event. ? 
    Undecided
     
     
  • Re: False event in CV event viewer
    Posted: 06-28-2018, 4:42 AM

    Hi Alligator89,

    This issue seems to be related to the alerts settings for your Index cache on the Media Agent.

    Could you check the below settings on your Media Agent?

    From Commcell Console --> Storage Resources --> Media Agents --> "Select Your Media Agent ProdMA_CA" --> "Right Click on your Media Agent ProdMA_CA" --> Properties --> "Select " Catalog Tab --> Under Index retention --> Modify the settings "Generate alerts when free space falls below "

    Reference:

    https://documentation.commvault.com/commvault/v11/article?p=5236.htm

    You could lower the the settings to 10 Gbs.

    Check and let me know if you are still experiencing issue.

    Regards

    Ola.

  • Re: False event in CV event viewer
    Posted: 06-28-2018, 10:03 AM

    My bad.

    I missed to check these alert settings :( it was set as to generate alerts if the free space falls below 40GB 

    So yes , CV started to generate alerts as the free space is 34GB ;)

    But why is it consuming Index, I'm only taking Oracle Backup through it

    Thanks alot Ola Lawal Cool

  • Re: False event in CV event viewer
    Posted: 06-28-2018, 10:19 AM
    • efg is not online. Last active: 09-12-2018, 8:27 AM efg
    • Top 10 Contributor
    • Joined on 02-02-2010
    • CommVault Tinton Falls NJ
    • Expert
    • Points 1,551

    Hi Alligator89,

    The alert checks the disk space where the indexcache is located.  This may be a shared mount or the entire server disk (depending on how and where commvault was installed) So...  if the file system disk (where the cache is located) falls below the set value (in your case 40GB) then an alert will get generated.  the cache itself may still be empty, but the disk where it's located has now less space potentially due to other factors.


    Ernst F. Graeler
    Product Specialist
    Applications and File Systems
  • Re: False event in CV event viewer
    Posted: 06-28-2018, 8:30 PM

    Hi Alligator89,

    I am glad to assist.

    As regards your question, please see Ernst F. Graeler's post as to how index cache Alerts on Servers work.

    Thanks Ernst F. Graeler for the detailed explanation of Index Cache Alerts.

    Regards.

    Ola.

  • Re: False event in CV event viewer
    Posted: 07-11-2018, 10:46 AM

    Thank you @efg, Ernst F. Graeler for the detailed explanation.
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