BUG REPORT: A UNC backup of a shared folder from a Windows 2008 R2 client fails with Status Code 13.
|Article:TECH157209|||||Created: 2011-04-01|||||Updated: 2013-09-06|||||Article URL http://www.symantec.com/docs/TECH157209|
A backup of a UNC (Universal Naming Convention) path of a NetApp NDMP filer fails with a Status Code 13 (file read failed) in NetBackup 7.0.1.
The process bpbkar32.exe faults on Windows 2008 R2 Servers.
NetApp NDMP: Data Ontap 7.3.5.
Master Server: Netbackup 7.0.1
Client: Windows 2008 R2 x64
The backup and archive process (bpbkar32.exe) is faulting on the system causing the backup to fail.
The work around procedure is to disable NetBackup Fast I/O (NTIO) by setting the registry to UseNTIO=0.
NOTE: NetBackup 7.5 will generate the following registry key by default during installation on Windows.
Disabling Fast I/O forces SYMANTEC NetBackup (tm) to use the built-in Windows BackupRead API (Microsoft published API) as opposed to using the NetBackup version of the BackupRead() API.
See Microsoft article for details: BackupRead Function:
To disable Fast I/O:
1. Click Start and Run, type regedit, and click OK
Warning: Incorrect use of the Windows registry editor may prevent the operating system from functioning properly. Great care should be taken when making changes to a Windows registry. Registry modifications should only be carried-out by persons experienced in the use of the registry editor application. It is recommended that a complete backup of the registry and workstation be made prior to making any registry changes.
2. Browse to HKEY_LOCAL_MACHINE\Software\VERITAS\NetBackup\CurrentVersion\Config
3. In the Config registry key, create a new key called NTIO
4. In the NTIO registry key, create a REG_DWORD value, give it the name UseNTIO, and the value 0 (zero)
Note: Fast I/O is enabled by default. Setting the UseNTIO registry key set to zero (0) disables Fast I/O.
To enable NTIO set the registry key to one (1) or remove the key.
bpbkar32.exe produces application fault when backing up data via UNC path.
Article URL http://www.symantec.com/docs/TECH157209