Database Repair

How To Repair Corrupt NSF File With Fixup Tool

Last updated on August 6th, 2019 at 12:30 am

What are NSF files?

NSF files are database files used by IBM Lotus notes and domino server to store notes information such as user emails, appointments schedule, calendar entries of the month, contacts etc in binary form. And like any other fie type .nsf file is prone to corruption.

Corrupt files are serious problem to users and if there is a database file got corrupt, then it became a serious issues. Failure in database effect the whole organization and results in delay of work. Database files are the most important one as they store entire data of mails, contacts and need to be recovered soon.

IBM Lotus Notes database files NSF are prone to get corrupt as they are large in size and may get virus or malware from any mail. It’s complicated structure is one of the major reasons of NSF file corruption. To repair NSF files and recover data we can use Fixup tool.

repair corrupt nsf file

How do they get corrupted? And what happens when NSF file is corrupted?

Like any other file type NSF files get corrupted due to high large size of files, complicated structure or irregular maintenance of the file. If the files are corrupted due to any reason it prevents the user to access the files and might show harmful effects on the storage data as well.

The corrupted files can lead to inaccessibility of files which may disrupt data of the file as well as it is stored in binary form. The reasons behind the corruption of NSF files may be crashing of domino server frequently, 3rd party inclusion which is possible due to regular maintenance, improper access to files, allocation of resource, manipulation and hardware failure etc.

Is the NSF file type repairable?

With anything happening in the digital world nowadays anything is fixable and repairable. And Yes is the answer to that question, .nsf file type is repairable using some repairing tools. These tools can be used manually to fix the file and its data and using particular tools used for repair NSF files which are available.

The repaired files can be used again and the data is recovered which is always helpful for the user. Though the procedure is not elaborate but if someone doesn’t know to do it tools is always helpful in such cases which allow simple approach to solve the problem.

How to reduce data corruption chances?

Even with the recovery tool available nowadays it is important to know how to avoid being in such situation because in some cases some data loss can be very harmful for the user. The user can always keep in mind regular maintenance of the data, try to avoid large files which are easily prone to corruption, reduce the use of alien entity to the files and avoid manipulation in order to keep data safe and reduce chances of corruption.

So, the NSF files are the database files used to keep notes such as emails, calendars, schedules for the user in binary form. Like any other file they are corruptible and like many files they are repairable with the use of tools for recovery

NSF Database may get corrupt due to

  • Crashing down of server
  • Use of unauthorized tools, add-ons in NSF database
  • Change in files stored in database or any manipulation with its structure
  • Any update of database, with which it is not compatible
  • Hardware failure like hard- drive not accessible or sudden power failure.

Things under consideration to avoid database corruption

  • Proper logging in: Enabling all the servers for transaction logging in Domino environment.
  • Maintenance: Constant maintenance of server should be done to avoid data corruption.
  • Database Update: If there is notification for a required update, then NSF database should be updated.

Steps to Repair NSF file using Fixup tool

repair nsf file with nfixup

  1. Go to Domino Administrator and select Server which stores database.
  2. If Domino Administrator not runs on Server, select local to run Fixup on databases stored on client side.
  3. Go to Files tab and select the database which you want to repair.
  4. After selecting database, go to Tools
  5. Click on Database and then Fixup
  6. Select options and click OK.

If the database is a System database (names.nsf, admin4.nsf) than close all the tasks related to it. While if you are using Fixup tool on Domino server, then stop the Domino server and run maintenance in Offline mode.


Download Lotus Notes NSF Repair Tool


Manual Method to repair NSF database is a tedious process and include risks. It takes time as firstly it scans the filke and then repair them. So to avoid this and efficiently repair Lotus Notes, you can use Stellar NSF Repair Tool. Its rich GUI makes it easy to use and smart engine repair and recover NSF files. You can also preview files and save recovered files to any directory you want. It supports all versions of IBM Lotus Notes 9.0.1, 9.0, 8.5, 8.0.2, 7.0, 6.5 and 6.0.

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