NDMP NAS Incremental backup FAILED

Last post 02-11-2020, 9:01 AM by Egor Skepko. 2 replies.
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  • NDMP NAS Incremental backup FAILED
    Posted: 02-11-2020, 4:22 AM

    Hello, 

     

    This is my first post here so if i do something wrong please let me know.

     

    I have a problem with NDMP Incremental backup of NAS 8TB. I have NDMP defaultBackupSet with 5 active subclients. 3 of them doing succesfully Incremental backup and anothr 2 Failed on Incremental but Succes on Full backup. If needed more information please let me know. I am gues something going wrong with getting of backup from snapshot. 

    I have uploaded some file attachment,

    Failed log - log view of failed incremental back

    failed backup 2  = are the schedule NAS option

    failed backup   = are the schedule NAS option

    Failed error: Unexpected NDMP error communicating with client, Process: NasBackup.


  • Re: NDMP NAS Incremental backup FAILED
    Posted: 02-11-2020, 8:44 AM

    Hi Egor,

    From uploaded logs, NDMP connections are getting established as expected from filer but there is no data getting transferred over the established socket. Threads wait for data and then they timeout and close.

    I understand this is a Hitachi NAS. The variables look correct too (2-way incremental backup to tape):

    4881 13fc 02/07 00:22:42 179814      ENV [DIRECT]=[ Y]
    4881 13fc 02/07 00:22:42 179814 ENV [FILESYSTEM]=[/__VOLUME__/DC3_NAS_EPIC-8_P01-PRD/WBS-OLDEPDRO]
    4881 13fc 02/07 00:22:42 179814 ENV [HIST]= [ Y]
    4881 13fc 02/07 00:22:42 179814 ENV [LEVEL]=[10]
    4881 13fc 02/07 00:22:42 179814 ENV [NDMP_BLUEARC_EXCLUDE_MIGRATED]=[ y]
    4881 13fc 02/07 00:22:42 179814 ENV [NDMP_BLUEARC_FH_CHARSET]=[UTF8]
    4881 13fc 02/07 00:22:42 179814 ENV [NDMP_BLUEARC_QUOTAS]=[ n]
    4881 13fc 02/07 00:22:42 179814 ENV [NDMP_BLUEARC_READAHEAD_PROCESSES]=[10]
    4881 13fc 02/07 00:22:42 179814 ENV [NDMP_BLUEARC_TAKE_SNAPSHOT]=[ y]
    4881 13fc 02/07 00:22:42 179814 ENV [NDMP_BLUEARC_USE_SNAPSHOT_RULE]=[daily]
    4881 13fc 02/07 00:22:42 179814 ENV [TYPE]=[dump]
    4881 13fc 02/07 00:22:42 179814 ENV [UPDATE]=[ Y]

    I believe it would be best if you open a support case.

    Regards,

    Bob

  • Re: NDMP NAS Incremental backup FAILED
    Posted: 02-11-2020, 9:01 AM

    Hi Bob,

     

    Thank you for the answer, do you mean opening support case by Hittachi? I dont understand why another incremental backups going wel. Here is log of another subclint where the incremental backup finished succesful. They do use different SP.

     

    Attachment: Incremental NDPM.txt
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