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oracle backup problem when we migrate client networker to netbackup

emret
Level 6
Partner Accredited

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. 

1 ACCEPTED SOLUTION

Accepted Solutions

Nicolai
Moderator
Moderator
Partner    VIP   

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.

View solution in original post

6 REPLIES 6

Nicolai
Moderator
Moderator
Partner    VIP   

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
Level 6
Certified

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

The standard questions: Have you checked: 1) What has changed. 2) The manual 3) If there are any tech notes or VOX posts regarding the issue

emret
Level 6
Partner Accredited

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
Moderator
Moderator
Partner    VIP    Accredited Certified

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
Level 6
Certified

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 ?

The standard questions: Have you checked: 1) What has changed. 2) The manual 3) If there are any tech notes or VOX posts regarding the issue

Nicolai
Moderator
Moderator
Partner    VIP   

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.