65273: Acronis Cyber Backup 12.5: Backup to tape fails with "The storage media is write protected" if tape is LTFS-formatted

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Symptoms

 1. Backup to tape fails with an error:

The storage media is write protected

2. The tape media is LTFS- formatted

3. When you check Windows Event log, a critical error is shown: "The LTFS file system encountered an error"

Cause

LTFS (Linear Tape File System) is not supported by Acronis Cyber Backup 12.5: see p.14 in Limitations of tape device usage

Solution

Unmap or reformat LTFS media to generic data media.

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