Azure File Recall Script

Overview

This PowerShell script recalls files from an Azure storage system by checking file availability and triggering a recall process if necessary. It supports scanning directories recursively and handling wildcard paths.

Usage

The script can be executed using PowerShell or Windows CMD. You can specify either:

• A RootFolder to scan all files in a directory.
• A PathList file containing specific paths or wildcard patterns.
• Both RootFolder and PathList together.

1. Running with just a RootFolder (simplest usage)

This will scan all files recursively in the specified directory:

PowerShell:

\\Path\To\RecallFiles.ps1 -RootFolder "\\Path\To\DataFolder"

Windows CMD:

powershell -File \\Path\To\RecallFiles.ps1 -RootFolder "\\Path\To\DataFolder"

2. Running with a PathList file

If you have a text file containing a list of file paths or wildcard patterns, specify it using -PathList.

PowerShell:

\\Path\To\RecallFiles.ps1 -PathList "\\Path\To\pathlist.txt"

Windows CMD:

powershell -File \\Path\To\RecallFiles.ps1 -PathList "\\Path\To\pathlist.txt"

3. Running with Both PathList and RootFolder

You can combine both options to prepend the specified directory path to relative paths or wild cards specified in the PathList:

PowerShell:

\\Path\To\RecallFiles.ps1 -PathList "\\Path\To\pathlist.txt" -RootFolder "\\Path\To\DataFolder"

Windows CMD:

powershell \\Path\To\RecallFiles.ps1 -PathList "\\Path\To\pathlist.txt" -RootFolder "\\Path\To\DataFolder"

4. Specifying a Log File

By default, logs are saved as RecallFiles.log in the script's directory. You can specify a custom log file location:

PowerShell:

\\Path\To\RecallFiles.ps1 -RootFolder "\\Path\To\DataFolder" -LogFile "\\Path\To\output.log"

Windows CMD:

powershell \\Path\To\RecallFiles.ps1 -RootFolder "\\Path\To\DataFolder" -LogFile "\\Path\To\output.log"

Notes

• The script supports wildcard characters (*, ?) in file paths within the -PathList file.
• If both -PathList and -RootFolder are specified, -PathList takes precedence but will still scan under -RootFolder if paths are relative.
• Long UNC paths are automatically converted if they exceed 260 characters.

Example PathList.txt

Example of a pathlist.txt file:

*.tif
Subfolder\*.jpg
SpecificFile.txt

This would:

1. Match all .tif files in the specified -RootFolder.
2. Match all .jpg files in Subfolder.
3. Check for SpecificFile.txt in the -RootFolder.

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End of README