Forum Discussion

osvaldo_olmedo's avatar
osvaldo_olmedo
Level 4
9 years ago

NDMP backups of 8TB filesystem on NAS (EMC VNX5200) device

Hello people, I have the following situation: I am configuring a NDMP backup of a NAS device (EMC VNX5200 storage), for administrative reasons, the NAS admin has configured a big filesystem (where several shares are created and exported to CIFS servers) of 8TB I have configured the NDMP policy and the path of filesystem in the backup selection is working properly, but because the big size of the FS I would need to speed up this backup. The NDMP architecture of the backup is local NDMP according attached diagram. Have you any advices in order to speed up this backup? (use msdp dedupe, etc) Thanks in advance and best regards Osvaldo
7.6
AIX
Backup and Recovery
NetBackup
  • Nicolai's avatar
    Nicolai
    9 years ago

    What type of NDMP backup are you using - the tar based or volume based type ?

    http://corpusweb130.corp.emc.com/upd_prod_VNX/UPDFinalPDF/en/NDMP_Backups.pdf

    See page 30. The volume based backup (set type = vbb)  type is much faster but on the cost of restore time. The "tar" backup method can be very slow for unstructured small files.

3 Replies

Sort By
  • Nicolai's avatar
    Nicolai
    Moderator
    9 years ago

    What type of NDMP backup are you using - the tar based or volume based type ?

    http://corpusweb130.corp.emc.com/upd_prod_VNX/UPDFinalPDF/en/NDMP_Backups.pdf

    See page 30. The volume based backup (set type = vbb)  type is much faster but on the cost of restore time. The "tar" backup method can be very slow for unstructured small files.

  • Marianne's avatar
    Marianne
    Level 6
    9 years ago
    Another options would be to backup the CIFS shares via MS-Windows policy on a master/media server to MSDP. This will allow the use of Accelerator to speed things up.
  • osvaldo_olmedo's avatar
    osvaldo_olmedo
    Level 4
    9 years ago

    Hello Marianne and Nicolai,

     

    Thanks for your useful replies, I will test both suggestion (Nicolai suggestion is easier to test on the other hand Marianne suggestion is a different aproach of the topology of backups).

     

    Thanks and best regards

     

    Osvaldo