1986958 - Common issues / Configuration recommendations for Symantec NetBackup for SAP HANA

Symptom

You are looking for configuration recommendations for Symantec NetBackup for SAP HANA, or you are encountering issues when trying to backup or restore SAP HANA using the backing interface with Symantec NetBackup.

Other Terms

Backup, Recovery, NetBackup, Symantec, Backint, SAP HANA

Reason and Prerequisites

You are using a SAP-certified solution of Symantec NetBackup (versions 7.5 and 7.6) and a SAP HANA database (at least revision 45).

Solution

The following documents give recommendations on how to configure Symantec NetBackup for SAP HANA, or describe common issues with Symantec NetBackup and how to resolve them.
Configuration Recommendations:

• Please make sure that the NetBackup for SAP HANA database agent has been installed correctly. The NetBackup for SAP 7.5.0.6 Administrator's Guide is available at http://www.symantec.com/docs/DOC5176. The NetBackup for SAP 7.6 Administrator's Guide is available at http://www.symantec.com/docs/DOC6482. Both guides include the SAP HANA specific installation procedures.
• Increase the Client Read Timeout in NetBackup to a large value. If the Client Read Timeout is set too low, the SAP HANA restore job may fail with error code 2850.
  See Symantec TechNote TECH215225, available at http://www.symantec.com/docs/TECH215225
• If restoring from tape, set the parameter MAX_RECOVERY_BACKINT_CHANNELS from the default value of '64' to a value of '1' in SAP HANA Studio. If this parameter is not set accordingly, sometimes a log restore from tape may hang until cancelled or eventually timeout and fail.
  See Symantec TechNote TECH211556, available at http://www.symantec.com/docs/TECH211556
• Tape backups on a multi-node or single-node SAP HANA appliance may fail. Change the Client connect timeout and Client read timeout to 3000 seconds or more.
  See Symantec KB article HOWTO88624, available at http://www.symantec.com/docs/HOWTO88624
• For scheduling SAP HANA backups from NetBackup please refer to Symantec TechNote TECH209343, available at http://www.symantec.com/docs/TECH209343

Common configuration issues:

• Data recovery fails when the node_names.txt file is missing in NetBackup SAP HANA at /usr/openv/netbackup/ext/db_ext/sap and if data recovery is initiated from the SAP HANA Studio.
  See Symantec TechNote TECH215391, available at http://www.symantec.com/docs/TECH215391
• If the library libelf.so.0 file is missing on the SAP HANA appliance (known for IBM and HITACHI SAP HANA appliances), SAP HANA backup fails with exit code 127.
  See SAP Note 1978901 or Symantec TechNote TECH208377, available at http://www.symantec.com/docs/TECH208377
• Though backup is working, recovery fails in SAP HANA studio with "No data backups found" (#NOTFOUND in backint.log) due to wrong hostnames in node_names.txt.
  See Symantec KB article DOC7480, available at http://www.symantec.com/docs/DOC7480
• An SAP HANA backup fails almost immediately if the initSAP.utl file has not been configured correctly ("ERROR: switch_list missing from parameter file")
  See Symantec TechNote TECH216653, available at http://www.symantec.com/docs/TECH216653

More technical information is available through the Symantec Knowledge Base Search available at http://www.symantec.com/business/support (search for "SAP HANA").
For Symantec NetBackup and SAP HANA version dependencies, please refer to the NetBackup 7.x Database Agent Compatibility List, available at http://www.symantec.com/docs/TECH126904.

Header Data

Released On	25.06.2014 14:25:35
Release Status	Released for Customer
Component	BC-OP-LNX-VTS Veritas Products on Linux
Priority	Recommendations / Additional Info
Category	Help for error analysis