How To Fix 1R421 - Insufficient disk space on file server

1R421 - Overview

• Message type: E = Error

• Message class: 1R - SAP Knowledge Provider

• Message number: 421

• Message text: Insufficient disk space on file server

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

1R421 - Details

• The SAP error message 1R421 indicates that there is insufficient disk space on the file server where SAP is trying to write data. This can occur during various operations, such as data uploads, backups, or when the system attempts to create temporary files.
  Causes:
  
  Full Disk: The most common cause is that the disk partition where the SAP application server or database is trying to write data is full.
  Large Files: Large files or logs may have accumulated over time, consuming available disk space.
  Temporary Files: Temporary files created during processing may not have been cleared out.
  
  Configuration Issues: Incorrect configuration of file paths or storage locations can lead to writing to a full disk.
  Backup Issues: If backups are not managed properly, they can consume significant disk space.
  
  Solutions:
  
  
  Free Up Disk Space:
  
  Identify and delete unnecessary files, such as old logs, temporary files, or unused backups.
  Archive old data that is not frequently accessed to a different storage