Questions about the Storage Information Report / Media Information Report

Last post 11-21-2018, 1:44 PM by Jos1982_NL. 3 replies.
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  • Questions about the Storage Information Report / Media Information Report
    Posted: 11-20-2018, 12:43 PM

    Hello everyone,

    I have a few questions about the Storage Information Report / Media Information Report.

    Some entries are bolded while others are not.  I can't find anything in the CommVault online documentation that explains what the bolding is but it appears to indicate tapes that have either Read/Write errors or Media Label errors. 

    Question 1:  Am I correct that a bolded entry indicates a tape that's had either read-write or media label errors?

    Question 2:  A read-write error is self explanatory.  What is a "Media Label" error?

    Question 3:  Some tapes appear as "Retired Media".  Is there a process for dealing with these so that CommVault knows they are removed, destroyed and are not coming back?

    Question 4:  Some tapes have media information like this:

    Writes: 14, Reads: 0, Mounts: 17, Read_Write_Errors: 0, Media_Label_Errors: 3, Reuses: 10, Discovered: 03/19/2014 14:08:48

    But others have media information like this:

    Writes/Reads/Lifetime: 21/0/5000, Read-Write_Errors/Lifetime: 0/5, Media_Label_Errors/Lifetime: 5/5, Reuses/Lifetime: 17/260, Discovered/Lifetime: 02/16/2014 10:35:03 /360 Months

    Can anyone explain why there is a difference?

    Thanks

    Ken

  • Re: Questions about the Storage Information Report / Media Information Report
    Posted: 11-21-2018, 4:55 AM

    1. not sure

    2. Media label refers to an identification of the tape, if an error occurs it cannot be identified properly. This is often seen when a library firmware has been updated. Labels need to be corrected in order to identify the correct tape.

    3. Within media management there are thresholds set looking at options below, when this applies the tape is marked as retired:

    Media Retirement Thresholds

    • No. of Read, Write Errors

      Displays the number of read, write errors that are allowed while writing to or reading from media before the media is marked as Bad.

    • No. of Years

      Displays the length of time that the media can remain in use before it is marked as Deprecated.

    • No. of Reuses

      Displays the number of times that the media can be recycled before it is marked as Deprecated.

    • No. of Media Label Errors

      Displays the number of errors that are allowed while writing the media label before the media is marked as Bad.

    4. Not sure

    Jos Meijer
    Senior Technical Consultant
  • Re: Questions about the Storage Information Report / Media Information Report
    Posted: 11-21-2018, 1:25 PM

    Regarding my question:  Some tapes appear as "Retired Media".  Is there a process for dealing with these so that CommVault knows they are removed, destroyed and are not coming back?

    I think I'll:

    1. Export the tape
    2. Arrange for physical destruction
    3. Delete the tape within CommVault so it no longer appears in any of the reports

    Ken

  • Re: Questions about the Storage Information Report / Media Information Report
    Posted: 11-21-2018, 1:44 PM

    Hi Ken,

    My apologies, I misread question 4.

    I would also follow your steps, export, destroy and delete.

    If you don't delete the tape will remain visible for reports.


    Jos Meijer
    Senior Technical Consultant
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