Month: June 2009

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Highpoint RAID Troubleshooting (Legacy)

For troubleshooting information, see the attached PDF.
The following exacqVision models were manufactured with Highpoint RAID controllers from 2007 to 2009:

  • 2310 (4 ports)
  • 2320 (8 ports)
  • 2300 (4 ports, PCIe 1x)

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To determine whether your system contains a Highpoint RAID controller, look at the RAID BIOS screen that appears when the system is first started (before the operating system starts).

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Adding or Replacing Hard Drives with exacqVision EL Servers Running Ubuntu 10.04 or earlier (Legacy)

Steps:

  1. Unplug the system to power it down. Install the new disks and start the system.
  2. After the system starts, log out of the Linux user account by selecting Start, Quit, and Logout. Log in as an Administrator.
  3. Close the exacqVision Client. Run the disk partition utility from Start, System, Administration, and Partition Editor. If prompted for a password, use the Administrator account password.
  4. At the top-right corner of the partition utility, open the Device drop-down menu.
    • Note the name of the device about 2GB or 4GB; this is the Linux flash drive that must NOT be altered for any reason.
    • Note the name of the other devices that are about the same size as the disk drives installed; if the system has a functional primary disk, skip to step 7 only on the new disk.
  5. Start Terminal Serivces from Start, Accessories, and Terminal.
    Note: The commands included in the following steps are applicable to Ubuntu 10.04. Changes for Ubuntu 8.04 are noted.
  6. For the first system disk only, perform the following steps:
    • Create a disk label by typing the following, where “X” is the device letter identified in step 4b:

      sudo parted -s /dev/sdX mklabel gpt

    • Create a 20GB swap partition by typing the following:

      sudo parted -s /dev/sdX mkpart primary linux-swap 0 20000 sudo mkswap -L swap /dev/sdX1

    • Create a 10GB export partition by typing the following:
      Note: Change ext4 to ext3 if on Ubuntu 8.04.

      sudo parted -s /dev/sdX mkpart primary 20000 30000 sudo mkfs.ext4 -L /mnt/export /dev/sdX2

    • Find the remaining free space by typing the following:

      sudo parted -s /dev/sdX unit MB print free

    • Create a data partition on the rest of the disk by typing the following, where “XXXX” is the free disk space identified in step 6d.
      Note: Change ext4 to ext3 if on Ubuntu 8.04.

      sudo parted -s /dev/sdX mkpart primary 30000 XXXX sudo mkfs.ext4 -L /mnt/edvr/1 /dev/sdX3

  7. For the second system disk only, complete the following steps:
    • Create a disk label by typing the following, where “X” is the device letter identified in step 4b:
      sudo parted -s /dev/sdX mklabel gpt
    • Find the remaining free space by typing the following:
      sudo parted -s /dev/sdX unit MB print free

    • Create a data partition on the rest of the disk by typing the following, where “XXXX” is the free disk space identified in step 7b:
      Note: Change ext4 to ext3 if on Ubuntu 8.04.

      sudo parted -s /dev/sdX mkpart primary 00000 XXXX
      sudo mkfs.ext4 -L /mnt/edvr/2 /dev/sdX1
      sudo mkdir /mnt/edvr/2

  8. If a new disk is being installed (instead of simply replacing a disk), label the directory in the file system:
    • Open the file system label file with a simple text editor:
      sudo nano /etc/fstab
    • Arrow down to the first blank line and add an entry for the new disk:
      Note: Change ext4 to ext3 if on Ubuntu 8.04. For the first disk only: LABEL=/mnt/edvr/1 /mnt/edvr/1 ext4 defaults 0 0 For the second disk only: LABEL=/mnt/edvr/2 /mnt/edvr/2 ext4 defaults 0 0
    • Press CTRL-X and then press Y to save the changes.
  9. Refresh the partiaion labels by typing the following: sudo udevadm trigger
  10. Remount all partitions by typing the following: sudo mount -a
  11. Create directories on the export paritition by typing the following:
    • sudo mkdir /mnt/export/admin
      sudo chown admin /mnt/export/admin
      sudo mkdir /mnt/export/user
      sudo chown user /mnt/export/user
  12. Restart the exacqVision service by typing the following:
    sudo/etc/init.d/edvrserver restart
  13. Restart the system and confirm the drive operation in the exacqVision Client as shown in the figure. All systems should have /mnt/edvr/0 (the flash operating system drive). Then /mnt/edvr/1 is the first disk drive, followed by any additional drive, all of which should be shown in green.

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Temporary File Location

The ExacqVision Client creates temporary files to locally store searched  audio, video, and exported files. Temporary files are created in a directory specified by an environment variable. The following environment  variables are searched in order to determine the path: TEMPDIR, TMP, TEMP,  USERPROFILE.

On systems built after May 2018, these environmental variables usually point to a file location within the C:\ Primary partition on Windows systems. Windows systems built prior to this date would have a 30 GB partition on the first physical disk for the purpose of storing the temporary file directory.

If the allotted space is not sufficient for your searching and exporting requirements, you can move the temporary directory to another location. To do this, complete the following steps:

  1. Run Start, Settings, Control Panel, System.
  2. Select the Advanced tab.
  3. Click the Environment Variables button.
  4. Edit the first of the variables listed above to point to your new location.
  5. Restart ExacqVision Client.

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Validating ExacqVision Video (also known as Watermarking or Authentication)

The validation standard used in ExacqVision is known as HMAC, for Hashed Message Authentication Code, and uses a cryptographic hash and secret cryptographic key. HMAC is used by ExacqVision to verify the integrity of exported video.

The ExacqVision Client software calculates and writes out the message authentication code (MAC) during file export. The ExacqVision ePlayer later calculates a hash and verifies the MAC during authentication using SHA-256. The methodology ensures no alteration of the data as the hashed calculations are compared to be certain the hashes match.

To authenticate video in the ExacqVision ePlayer, select Authenticate from the Tools menu.

The following image shows a successful authentication:

Video may only be authenticated using the ExacqVision ePlayer. The ePlayer application is used to playback ExacqVision native files in .PS or .PSX file formats. It is also packaged in self-playing .EXE file exports. For more information on the features of exported file formats, refer to Article 1894.

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