Forensic Tower II User Guide

1.  Forensic Tower II (FT II) 

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The Forensic Tower II is the latest addition to Forensic Computers' line of high quality powerful forensic workstations.  There are five external 5.25 inch bays and six internal 3.5 inch bays in the Forensic Tower II's case that allow for easy upgrades and the flexibility to configure a forensic lab system to meet your needs.

2.  How to Use This Manual 

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This manual has two main sections:  Quick Start and Useful Information.

The Quick Start section of the manual will give the user enough information about the Forensic Tower II and its accessories to get started.  There is an overview of the additional components that come with the FT II and their use.  The Useful Information section goes into more detail about specific components of the Forensic Tower II (FT II).

3.  Quick Start 

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3.1 Unpacking Your Forensic Tower II (FT II) 

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The Forensic Tower II system has the following items:  the Forensic Tower II, the monitor, the keyboard, the mouse, the PC power cord and the Forensic Write Protection Kit.  The Forensic Tower II system utilizes CRU-DataPorts controlled by a Tableau T335 Forensic Drive Bay Controller, which allows the forensic investigator to extract a forensically sound image (or copy) of a subject hard drive.

When you first receive your FT II, please familiarize yourself with all of its contents.  The following table lists each of the items found in the kit.

Photo Description
Forensic Tower

Dell 22” LCD Widescreen Panel

Keyboard & Mouse Combo

Manual Bag

CD Wallet

Screwdrivers:

Flashlight

Surge Protector

IDE to SATA tray for the SATA READ/WRITE bay.

3.2 Using the Tableau T335 Drive Bay Controller 

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The three CRU DataPort trays (IDE READ ONLY, SATA READ ONLY, and the SATA READ/WRITE) are removable from their prospective bays.  With the addition of a T335 Drive Bay Controller, the CRU DataPort trays are then 'hot swappable' (meaning one can insert or remove a hard drive from the trays while the computer is still powered ON).  If the CRU DataPort lock is in the 'locked/ON' position, and the computer is on, the T335 Drive Bay Controller's 'Power' LEDs will be consistently ON whether or not a hard drive is in the tray. 

3.2.1 Step by Step Instructions for accessing hard drives via CRU.

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  1. In order to insert a hard drive into one of the trays, one must unlock the CRU DataPort tray with a CRU Key and gently pull the tray from the computer.
  1. Using a CRU Opener, place the flat end up under the lid of the CRU DataPort tray and gently pry loose the lid of the CRU DataPort tray.
  1. Inside of the tray will be power and data connections for either a SATA or an IDE hard drive. Connect the corresponding hard drive to its power and data connectors and gently lay the hard drive in the CRU DataPort tray.  
  1. Replace the lid of the tray back on, and insert the entire tray in the computer bay from whence it came. 
  1. Once the tray has been re-inserted, use the CRU Key to turn the CRU DataPort back to the 'ON/locked' position. 

The operating system and the T335 should at this point see the suspect hard drive.  If the hard drive is in the IDE READ ONLY tray, then (on the T335 Drive Bay Controller) the IDE Power, Dev Det, the Host Det, and the Wrt Blk LEDs will be lit.  The Activity light will blink ON and OFF as 'activity' occurs.  The Microsoft Windows XP Professional will usually have a pop-up window on detection of the suspect drive.  If a pop-up window does not occur, one can check Device Manager for the hard drive under 'Disk Drives' or in 'Disk Management', which is a part of Computer Management.  One can also use their forensic software to determine whether the suspect hard drive has been detected.  

3.3 Imaging the OS Drive 

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Over time, an investigator will need to image and re-image their OS hard drive. As of December 2007 three types of software have been used to create the initial OS hard drive images sent out with Forensic Computers' line of systems:  Norton Ghost,  Acronis TrueImage version 10 and Image for Windows.

3.3.1 Re-Installing the image for the OS Hard Drive (Image for Windows) 

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 (Your username and SN for IMAGE FOR WINDOWS will be located in your CD wallet.  If it is not, call us with the serial number of your system and we will locate your IMAGE FOR WINDOWS serial number.)

  • Enter the BIOS and ensure that the DVD_RW is set to boot before the hard drive
  • Insert the DVD into the DVDRW
  • The program will automatically start up and ask you to "press <space> for menu or wait for the restore to start"
  • Wait for the restore to start as it will select the first hard disk (HD0) which is your OS drive
  • The program will then ask if you want to continue with the restore on HD0 (this will erase everything on the drive and restore it to factory defaults.)
  • Once the restore has completed and has been rebooted, the machine will be ready for use.
  • For more advance and detailed instructions please refer to the PDF included on your Image for Windows CD

3.3.2 Re-Imaging the OS Hard Drive (Image for Windows) 

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  • Start Image for Windows from desktop shortcut/start menu
  • Choose operation to perform:  Backup (next)
  • Select Partition:  HD0 / specific hard drive  (next)
  • Select Destination:  DVDRW  (next)
  • Backup Options (default settings)  (Finish)

Image for Windows will burn an image of the drive to the disk and then proceed to automatically validate the disk.  If errors occur during validation, one must start completely over with a fresh DVDRW.

4. Useful Information

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4.1 Tableau T335 Drive Bay Controller

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The Tableau T335 Forensic Drive Bay Controller is in the first bay of the Forensic Tower III Core i7. The Forensic Drive Bay Controller manages the following three CRU-DataPorts:  the READ ONLY IDE CRU-DataPort, the READ ONLY SATA CRU-DataPort, and the READ/WRITE SATA CRU-DataPort.  On the left hand side of the T335 Forensic Drive Bay Controller are the LED's.  The five sets of LED's on the left hand side correspond to the three CRU-DataPorts:  IDE CRU-DataPort (bay two), SATA READ ONLY CRU-DataPort (bay three), and SATA READ/WRITE CRU-DataPort (bay four).  SATA #1 corresponds to the SATA READ ONLY CRU-DataPort and SATA #2 corresponds to the SATA READ/WRITE CRU-DataPort.  The first row of LED's correspond to the IDE CRU-DataPort, the second row of LED's correspond to the SATA READ ONLY CRU-DataPort and the last row of LED's correspond to the SATA READ/WRITE CRU-DataPort.  There are two FireWire 800/400 ports in the middle and two USB 2.0 ports on the right hand side.  The last bay contains a DVD-RW.  The OS hard drive and the DATA drive are in slots one and two of the internal bay configuration.

The following is a table of each of the items of the Tableau T335 and a description of its purpose:

Front Element

Description

Power LEDs

The Power LED for an individual CRU-DataPort unit indicates whether the power is ON or OFF for that unit.  The Power LED will be on solidly when the corresponding CRU-DataPort or drive bay is ON.  If the Power LED is blinking ON and OFF, then the drive bay is OFF and the T335 Forensic Drive Bay Controller is working normally.

Dev Det LEDs

The Dev Det LEDs (Device Detection) indicate that a hard drive has been recognized by the CRU-DataPort or drive bay unit in which the hard drive has been placed.

Host Det LEDs

The Host Det LEDs (Host Detection) indicate communication between the "Host" computer (in this case the Forensic Tower III Core i7), the T335 Forensic Drive Bay Controller and the subject hard drive which is in one of the CRU-DataPort units.

Wrt Blk LEDs

The Wrt Blk LEDs (Write Block) indicate the Tableau T335 Forensic Drive Bay Controller is in READ ONLY mode.  If the individual LED is ON, then the corresponding drive bay may be used to capture a forensically sound image or copy of the hard drive that has been inserted into the drive bay CRU. 

Activity LEDs

The Activity LED's indicate that host computer is communicating with the hard drive in the corresponding drive bay. 

FireWire 800/400

The two FireWire 800/400 ports are NOT write-blocked, meaning that if one is using either one of the two FireWire ports to examine a hard drive, then the user can 'write' to that hard drive and may corrupt evidence.  The two FireWire 800/400 ports are used to attach other FireWire devices, such as the Tableau T4 Forensic SCSI Bridge. 

USB 2.0

The two USB 2.0 ports on the front of the Tableau T335 are also NOT write-blocked.  The USB ports are for connecting other external USB devices, such as a USB security dongle or any other device.