SOLVED: What Does EA Records and Reparse Records Processed In the Results of a CHKDSK Mean

If you have ever run a Check Disk (Chkdsk.exe) you will see results like 4 EA RECORDS PROCESSED and 76 REPARSE RECORDS PROCESSED.  At first review, these are likely something that concerns you but they should not:

EA Records are Extended Attribute records. They’re a feature of NTFS that allows for a file to have custom extra metadata stored along with it (metadata that is not interpretable to the file system). EA records are a somewhat obscure feature of NTFS that are used very infrequently, but having a few of them doesn’t mean that there’s anything wrong with your filesystem.

As an interesting side note, EA records are actually intended to support the emulation of OS/2, an early Microsoft operating system that is still used in some legacy systems (support officially ended 2006). Wikipedia notes that some Windows POSIX layers use EA records to store unix permissions fields.

Reparse Records establish Reparse Points within your file system. Reparse Points are a very interesting feature of NTFS that allow a file to be tagged with some data that will essentially result in a program (an FS Filter, sort of like a driver) being run every time you access the file. They’re not used a lot, most notably they are used to create symlinks in Windows (via the mklink command) and for volume mount points (this is an obscure feature of Windows that allows you to mount a device as a folder in another device, somewhat like the Unix file system). A normal Windows install will have a number of them that are set up by the installer.

tl;dr: these entries both refer to infrequently used features of NTFS, which is why there’s a small number of occurrences of each. They don’t indicate any kind of problem with your file system or operating system.

From J Crawfordor at http://superuser.com/questions/292338/chkdsk-questions

 

Comments

  1. Avatar
    Whatever October 23, 2017 at 1:42 pm

    What does it mean when chkdsk says you have >54000 (54 thousands) of EA records, yet this is a new hard disk and Windows 8.1 just has been installed on it?

    • Ian Matthews
      Ian Matthews December 28, 2017 at 11:18 am

      That is a good question and I don’t have an answer to it, but I will ask Microsoft and post their response if it is useful.

      • Avatar
        Jim November 22, 2019 at 6:02 am

        was there ever an answer to 54000 EA records?

        • Ian Matthews
          Ian Matthews November 27, 2019 at 4:28 pm

          If the disk has many other problems noted in a Chkdsk I would be worried but as stated in the article, I don’t think it is much to be concerned about.

  2. Avatar
    DannyhelMont February 7, 2017 at 8:59 am

    ~ Nice! Thx for the Info’. ;D

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