Disk Pruning Critical Alert - identify the old records/data

Last post 06-09-2019, 9:01 PM by Wwong. 2 replies.
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  • Disk Pruning Critical Alert - identify the old records/data
    Posted: 06-04-2019, 12:28 PM

    On one of our SIDB (SIDB_GDSP-del_GDSP-del_Primary) I am getting the following critical alert: 10% of Primary block count or Records older than 7 days > 10000

    I cannot seem to figure out what, if any, report I can run to see what data isn't expiring and so I can possibly manually prune it.

    Any suggestions?

  • Re: Disk Pruning Critical Alert - identify the old records/data
    Posted: 06-05-2019, 3:24 AM

    These are alerts generated by thresholds set in the Media Management under the Commvault Control Panel.  https://documentation.commvault.com/commvault/v11/article?p=11019.htm.

    Specifically, this settting is relevant : Days to consider for pending logical pruning for Deduplication pruning threshold event.  This parameter allows you to generate an event message when the number of deleted records are older than the 7 days and meets the threshold value specified in the Max number of records pending logical pruning for Deduplication pruning threshold event parameter.  The Default Value is 7 days.

    Does your DDB show a large number of blocks pending deletion?  Is the average DDB Q&I time acceptable?

  • Re: Disk Pruning Critical Alert - identify the old records/data
    Posted: 06-09-2019, 9:01 PM

    Hi wsimps01

    As highlighted by Anthony, the alerts are usually generated if the DDB "Pending Deletes" are high

    "Pending Deletes" refers to logical blocks/signature which has met retention and needs to be Physically pruned from Disk Library, but due to resourcing/performance or other various reason it might not be cleaned, resulting in the alert.
     
    You can navigate to the Deduplication Database, scroll down to the section "DDB Statistics" and there should be a table for "Number of Pending Delete Records" -> if it is greater then 10000, then it is higher then the threhold limit (the default is 10000)
     
    If the "Number of Pending Delete Records" is continuing to grow, I would recommend to engage support to look into this further.
     
    Kind regards
     
    Winston 



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