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Veritas NetBackup™ for Microsoft SQL Server Administrator's Guide

Last Published: 2021-06-07

Product(s): NetBackup (9.1)

About using batch files with NetBackup for SQL Server

NetBackup for SQL Server uses batch files to initiate backup and restore operations. A batch file uses the .bch extension and is typically executed from the install_path\DbExt\MsSql\ directory.

You must create a batch file if you start operations in any of the following ways:

NetBackup MS SQL Client
dbbackex command line
Automatically scheduled backups that use batch files and clients

Rules for using batch files

Review the following information before you create and use batch files:

Ensure that the batch file resides on the client.
See Registering authorized locations used by a NetBackup database script-based policy.
Batch files are in Unicode text.
A batch file consists of a series of operations that run in sequence. For legacy SQL Server backup policies, you create batch files for backup operations and restore operations. For SQL Server Intelligent Policy, you create the batch files for restore operations in the same way.
Each operation consists of a series of <keyword value> pairs, which completely define the total operation.
The keyword is not case-sensitive but the value is. Generally, you can code both the keyword and value in uppercase. The exception is the NBIMAGE keyword option. The value must be specified exactly as it appears in the NetBackup server.
Operations are not nested.
With the exception of the BATCHSIZE, GROUPSIZE, RESTARTTYPE, NUMRESTARTS, and RESTARTWAITSECONDS parameters, <keyword value> pairs are not global. If you use BATCHSIZE, GROUPSIZE, RESTARTTYPE, NUMRESTARTS, or RESTARTWAITSECONDS then it must appear only once in your batch file and it must appear in the first operation.
If SQLINSTANCE $ALL is used, then it must appear in the first operation of the batch file. Each operation in the batch file is performed for all SQL Server instances on the client where the batch file is executed. Also, it is not necessary to specify an SQLHOST or SQLINSTANCE on any subsequent operations.
Within an operation, the <keyword value> pairs may appear in any order except that you must terminate each operation with ENDOPER TRUE.
You can include comment lines in your batch file by placing a hash mark ('#') in the first column.
STOPAT, RESTORETOMARK, RESTORETOMARKAFTERTIME, RESTOREBEFOREMARK, and RESTOREBEFOREMARKAFTERTIME are mutually exclusive restore parameters. If either RESTORETOMARKAFTERTIME or RESTOREBEFOREMARKAFTERTIME are used, then the batch file must also specify a datetime string with the keyword STOPAFTER.
If you remove the MAXTRANSFERSIZE keyword from the batch file, the default is 0 or a maximum transfer size of 64 KB. If you remove the BLOCKSIZE keyword from the batch file, the default is 0 or a block size of .5 KB. A default value of 0 is also applied if you manually create a batch file without these keywords.