Tag: File System

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Knowledge Support Support Categories exacqVision Hardware

Running Windows Chkdsk Command

Title

Running Windows Chkdsk Command

Description 

Chkdsk, also known as Microsoft Check Disk, is a utility that can be used in almost all Windows versions. The Chkdsk commands used to scan through entire hard drives to find and fix any errors.

Chkdsk should be run whenever file system corruption is suspected whether by odd behavior or when indicated in the  exacqVision Server or Windows System logs.

Product 

  • Microsoft Windows

Syntax

Chkdsk volume /f /r /x

Recommended Parameters

  • /f Fixes errors on the disk. The disk must be locked. If Chkdsk cannot lock the drive, a message appears that asks you if you want to check the drive the next time you restart the computer.
  • /r Locates bad sectors and recovers readable information. The disk must be locked. It includes the functionality of /f, with the additional analysis of physical disk errors.
  • /x Forces the volume to dismount first, if necessary. All open handles to the drive are invalidated. It also includes the functionality of /f.

Run Chkdsk from Command Prompt

  • Click the Window Key, type cmd in the search box.
  • Right-click on cmd, cmd.exe or command prompt, depending on your version of Windows and select “Run as Administrator”. Enter your Administrator password if prompted.
  • When the Command Prompt opens, type the following command replacing “c” with the drive letter of the volume to be checked and press enter.
  • Chkdsk c /f /r /x
    • Note: If one or more of the files on the hard disk are open, you will receive the following message:”Chkdsk cannot run because the volume is in use by another process. Would you like to schedule this volume to be checked the next time the system restarts? (Y/N)”
      Type Y, and then press ENTER to schedule the disk check, and then restart your computer to start the disk check.

    Run Chkdsk from Properties Window

    • Press Windows key + E to open File Explorer 
    • Navigate to the HDD/SSD to scan 
    • Choose Properties 
    • Select the Tools Tab the click the “Check Now” or “Check” button under Error-checking
    • Windows 7
      • You will be prompted about actions to take before the scan is run 
      • Automatically fix file system error 
      • Scan for and attempt recovery of bad sectors
      • Note: If the drive is in use a message will prompt you to schedule disk check, select to do so. 
      • Reboot the machine 
    • Window 10 
      • Scan Drive 
      • If errors are found, you can decide to fix them
      • Select to scan the disk, a progress window will appear with approximate time to completion 
      • When scanning finishes
      • A message will display with the results and a Show Details link to see the Chkdsk log in Event Viewer.

    Categories
    Knowledge Support Support Categories Products exacqVision Integrations

    How to Determine Whether a File is Bookmarked

    NOTE: For better understanding of this article, you should be familiar with the basic filename format for exacqVision data (see https://exacq.com/kb/?crc=30471).


    A file is known to contain bookmarked content if:

    • The filename plugin ID (XXXX in the file name) matches the device manufacturer’s ID (list of available IDs: https://exacq.com/kb/?crc=30471).
    • The device number (YY in the file name) matches the camera’s device number. The device number for a camera can be found only by looking at the configuration XML file for the corresponding manufacturer in the server installation directory.
    • The file content’s start time (as seen in the file’s full path and MMSS of the filename) is no earlier than five minutes before the bookmark’s start time (as seen on the exacqVision Search page when desired bookmark is selected).
    • The file content’s start time (as seen in the file’s full path and MMSS in the filename) is no later than two minutes after the bookmark’s end time (as seen on the exacqVision Search page when desired bookmark is selected).

    Example

    Bookmark start time = 5/8/2014 18:03:56
    Bookmark end time = 5/8/2014 18:10:52
    Filename format = MMSS-XXXXYYZZ (plus extension)
    Files are located inside directory 2014/05/08/18.

    _______________________________________________________

    0003-00270180.ps
    0003-00270180.psi

    These files are bookmarked, as the start time of 0 minutes and 3 seconds is less than five minutes before the bookmark start time of 3 minutes and 56 seconds.
    _______________________________________________________

    0503-00270180.ps
    0503-00270180.psi

    These files are bookmarked, as the start time of 5 minutes and 3 seconds is between the bookmark start time of 3 minutes and 56 seconds and the bookmark end time of 10 minutes and 52 seconds.
    _______________________________________________________

    1003-00270180.ps
    1003-00270180.psi

    These files are bookmarked, as the start time of 10 minutes and 3 seconds is between the bookmark start time of 3 minutes and 56 seconds and the bookmark end time of 10 minutes and 52 seconds.
    ______________________________________________________

    1503-00270180.ps
    1503-00270180.psi

    These files are not bookmarked, as the start time of 15 minutes and 3 seconds is more than two minutes after the bookmark end time of 10 minutes and 52 seconds.

    Categories
    Knowledge Support Support exacqVision Server Categories Products

    What file systems does ExacqVision support?

    File systems supported by ExacqVision are as follows:

    <br>

    Windows:

    • NTFS

    Ubuntu/Linux:

    • ext4 (recommended)
    • ext3 (only used for older 8.04 systems)

    <br>

    Using file systems other than those listed may result in data loss, inability to recognize storage volumes, incompatibility when updating to future software versions.

    <br>