Opening a TZZ File

The TZZ file type is primarily associated with IBM Tivoli Storage Manager.

TZZ	File extension: TZZ
	File type:	compressed log file

What is a TZZ file?

TZZ files mostly belong to IBM Tivoli Storage Manager. TZZ files are compressed CIM FFDC log files used in environments like IBM Tivoli Storage Manager.
Usage: They are created automatically by a CIM Server to capture diagnostic data (FFDC - First Failure Data Capture) when a system event or error occurs.

Purpose: They store system logs in a compressed format to help with troubleshooting.

Format: The file is compressed using a proprietary method, so it is not intended to be opened with regular text editors.

Handling: Use IBM support tools or specific decompression utilities to open and inspect these logs.

How to open TZZ files

You need a suitable software like IBM Tivoli Storage Manager to open a TZZ file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your TZZ file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a TZZ file directly in the browser:. Just drag the file onto this browser window and drop it.

Online TZZ Text Viewer

Choose your .tzz file to analyze

or drag and drop it here

Online File Viewer

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Programs that open and convert TZZ files:

IBM Tivoli Storage Manager
See the previous paragraphs to learn more about the main application. TZZ files are often referred to as IBM Tivoli Storage Manager compresseds because this type of file is primarily created or used by this software.
IBM Tivoli Storage Manager
A *.TZZ file is a compressed archive, containing a CIM FFDC log file related to the CIM Server component of IBM Tivoli Storage Manager. The FFDC (First Failure Data Capture) log files contain diagnostic information collected by the system when an error or other noteworthy event occurs. These logs are crucial for troubleshooting and problem determination within the CIM (Common Information Model) infrastructure of the storage management system. The compression applied to these files helps reduce storage space requirements. This file format is classified as Compressed Log File.

TZZ format details:

To view or edit TZZ files you need to know the file format, because it determines how the data in this file is stored. A file format is determined by the file extension and signature, so JPEG images have the extension .jpg and the first bytes in the file are ÿØÿ. However, different programs can use the same file extension, and file extensions can be assigned incorrectly. Exact knowledge of the format is therefore important in order to solve problems occurring in files. Our examination of the TZZ files comes to the following conclusion:

The TZZ file type is primarily used by a single program. But the following two file formats are common:

97% of all TZZ files start with the magic bytes ‰LZO, which are always the first bytes of this file format. The contents of these files cannot be read by a human; only a computer program can interpret the data. The files are often between 10 MB and 17 MB in size. The file type is a fairly new file format. Certain words are almost always found in the files, such as /tmp/', immroo8, tmp/ffdc.list, ustar, 0000600 and /etc/Pegasus/cimserver_current.c. A common filename is ffdc.tzz. These files are often associated with mcto, vcto, xcto, ctolww and rcto.

All other TZZ files (3%) have no consistent format. You can get all the details of your TZZ file by dragging it onto this page or by clicking the button "Choose your .tzz file to analyze" above.

Technical Data for TZZ File Extension

File classification:

Compressed

Related files:

tgz, ffdc, tz, bfs, log, zip, gz, tar

a tzz compressed log file is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with TZZ files

Associate the TZZ file extension with the correct application.
Update your software that should actually open compressed log files. Because only the current version supports the latest TZZ file format. Search, therefore, e.g. on the manufacturer website after an available IBM Tivoli Storage Manager update.
To make sure that your TZZ file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .TZZ file online - secure, fast, and no downloads needed.