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emret's avatar
emret
Level 6
11 years ago
Solved

oracle backup problem when we migrate client networker to netbackup

Hi All,

 

our customer previously used networker now we change the backup software networker to netbackup.  but some of he oracle clients we get a this error ;

 

RMAN-00571: ===========================================================

RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============

RMAN-00571: ===========================================================

RMAN-03009: failure of backup command on ch03 channel at 09/19/2014 22:32:44

ORA-19506: failed to create sequential file, name="al_26463_1_858724249", parms=""

ORA-27028: skgfqcre: sbtbackup returned error

ORA-19511: Error received from media manager layer, error text:

   Exceeded the number of retries. The NetWorker server may be down or unreachable

 

we removed the networker symbolic links and successfully execute the netbackup oracle_link but when we execute the backup i still try to reach networker environment. 

7.6
Backing Up
Backup and Recovery
NetBackup
Solaris
  • Nicolai's avatar
    Nicolai
    11 years ago

    Both Netbackup & Networker provide the media manger layer in the from of the OS library libobk.???

    Check Networker libobk isn't located somewhere in the file system.

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  • Nicolai's avatar
    Nicolai
    Moderator
    11 years ago

    It is because Oracle RMAN is still linked to Networker media manger. Netbackup prodvide it own media manger layer for use with Oracle.

    Instruction on how to configure Netbackup media manger layer is documented in the Netbackup Oracle manual page 39 and forward.

    http://www.symantec.com/docs/DOC6481

     

  • Michael_G_Ander's avatar
    Michael_G_Ander
    Level 6
    11 years ago

    Check that libobk under the oracle lib is a symbolic link to the correct libobk under netbackup/bin

    It can be changed on the fly as long as there is no backups running against the client

  • emret's avatar
    emret
    Level 6
    11 years ago

    hi, we checked the oracle_link state and it seems to be successfully linked. and we remove the networker link but still same error continue.

  • Marianne's avatar
    Marianne
    Level 6
    11 years ago

    Have you checked the oracle rman script?

    It is possible that Networker libobk and/or server name is hard-coded in the script.

    It may also be necessary to restart Oracle.
    We have seen at one customer where Oracle client was moved from one NBU master to another master.
    Oracle backups still tried to connect to old master, although we have checked every single NBU setting as well as the script.
    Seems the old server was somehow/somewhere stuck in Oracle. Only when Oracle was restarted did the backup connect to new master.

  • Michael_G_Ander's avatar
    Michael_G_Ander
    Level 6
    11 years ago

    oracle_link, do you mean the script supplied with netbackup or the actual symbolic link under the oracle lib or lib64 folder ?

    What does ls -l of the libobk files under the lib or lib64 folder show ?

  • Nicolai's avatar
    Nicolai
    Moderator
    11 years ago

    Both Netbackup & Networker provide the media manger layer in the from of the OS library libobk.???

    Check Networker libobk isn't located somewhere in the file system.