PowerProtect Data Manager 19.14 Network-Attached Storage User Guide

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Guidelines for exclusion filters for NAS

Review the following guidelines for exclusion filters.

Excluding by file size

When viewing the size of a file on a remote file system, only the value in bytes is precise. The calculations used to round the bytes to a different measurement are specific to each vendor and operating system, and should not be used to exclude a specific file.

For example, a Windows host could indicate the following information for the size of a file:

Size: 750 MB (786,652,672 bytes)

If you use an exclusion filter of Equal to with a value of 750 MB, the rounding of bytes to megabytes will almost certainly result in the file not being excluded.

Examples of exclusion filters to exclude this file by size include the following:

Equal to with a value of 786,652,672 bytes.
Greater than or Equal to with a value of 749 MB or 785,000,000 bytes.
Less than or Equal to with a value of 751 MB or 787,000,000 bytes.

Using wildcards

Supported wildcards include an asterisk (*) to represent zero or more characters and a question mark (?) to represent zero or one character.

NOTE:Be careful when using the wildcard *. Depending on the wildcard location, you can match folders whose name matches the filter pattern and their contents, even when the names of those files do not match the filter. For example, *//log*.txt also excludes files with the .txt extension in a folder whose name starts with log, even if the names of the files do not start with log.

Unsupported characters in file and path names

File and path names that contain a comma (,) cannot be directly specified in a filter. To exclude such a file or path, use a wildcard.

Excluding by file type

The File Type filter enables you to exclude files and folders based on file extension.

You can specify a single extension or multiple file extensions. Separate multiple entries with a comma and do not add a space between entries. You can also specify related extensions by using wildcards. For example, *.doc? matches both .doc files and .docx files.

Excluding by file and folders path

The Folder Path filter enables you to exclude files and folders in a specific path.

The following table provides examples for excluding files and folders using NAS supported folder path formats.

Table 1. Supported folder path formats
Appliance	Folder or File Path formats
Unity	CIFS :/sharename/foldername or filename NFS :/sharename/foldername or filename
PowerStore	CIFS :/sharename/foldername or filename NFS :/sharename/foldername or filename
Generic asset (NetApp)	CIFS :/sharename/foldername or filename NFS :/sharename/foldername or filename
PowerScale	CIFS: powerscale:/ifs/sharename/foldername or filename NFS : /ifs/sharename/foldername or filename

Excluding multiple paths

Use commas to separate multiple paths and do not add a space between entries. For example, to exclude the folder /sharename/folder1, and the folder /sharename/folder2, use the Folder Path filter /sharename/folder1,/sharename/folder2. Do not enclose each path in quotation marks.

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