To install your RAID array, you will need a small coin or a straight-edge screwdriver and a Phillips screwdriver. We'll need to prepare the drives, remove the case, install the Adaptec SCSI card, install the drives, and reassemble the case.
Preparing the Drives
First, we'll need to set the ID number and termination on the drive. The hard drives are SCSI devices and they need a unique ID number. Because both drives will be controlled by and Adaptec SCSI card and not from the logic boardÕs controller, we won't need to be concerned with the IDs of your other devices.
Seagate Barracuda drives
Pick one drive. This will be your primary drive. To set the primary drive, look at the front of the drive (the end opposite all the connectors for the SCSI ribbon and power cable). Hold the drive with the circuit board (green) side down. On the right, you'll see a set of 20 pins. Make sure none of these pins are closed by jumpers. Look at the circuit board side of the drive with the front of the drive at your left. On the side farthest from you near the back of the drive, you find another set of 16 pins. Going from left to right, the first and seventh vertical pairs should be closed with jumpers. Leave the remaining pins at the default settings. With these settings, your primary drive is set for ID0, termination ON.
The other drive is your secondary drive. Look at the set of 20 pins on the front. Close the rightmost vertical set of pins. Next, look at the set of 16 pins on the side. Going from left to right, the first and seventh vertical pairs should not be closed with jumpers. Leave the remaining pins at the default settings. With these settings, your primary drive is set for ID1, termination OFF.
IBM DFHS drives
Pick one drive. This will be your primary drive. To set the primary drive, look at the front of the drive (the end opposite the connectors for the SCSI ribbon and power cable). Hold the drive with the circuit board (green) side down. On the left you'll see a set of pins arranged in vertical pairs. Going from left to right, you'll see four pairs of pins, then a single marker pin. The two vertical pairs to the right of the marker pin need to be closed. The remaining pins need to be left open. To the right of those pins you'll see a horizontal pair. That horizontal pair will need to be closed. With these settings, the drive is set for ID0, termination ON.
The other drive is your secondary drive. Look at the set of pins. Find the single marker pin. The vertical pair on both sides of the marker pin needs to be closed. None of the other pairs, including the horizontal pair off to the right, need to be closed. With these settings, the drive is set for ID1, termination OFF.
Remove the case according to the following Tech Info Library article:
Article 36388:
Removing the case
Installing the Adaptec SCSI Controller
See your User's Guide for information on how to install a PCI card. One end of the silver SCSI ribbon will attach to the smaller of the two connectors on the top edge of the Adaptec card. The cable is keyed so it will not fit backwards. We'll attach the cable to the drives later.
Installing the drives
Start with the secondary drive. This one will go in the RAID rack, right in the middle of the computer. Remove the two screws securing the RAID rack. One is located near the PCI slots on the back of the computer. The other is on the support brace that runs from the back of the computer to the front. Once these screws are removed, the RAID rack will slide forward slightly, then you can lift it out. Be careful with the fan wires, since the CPU fan is connected to the RAID rack. Disconnect the fan power cable from the logic board.
Install the drive backwards into the RAID rack, with the power and SCSI connectors going toward the front of the computer and the label side up. Slide the drive into place and screw it to the RAID rack.
The primary drive will go into the lowest of the 5.25 bays. To get to it, first remove the support brace. A screw on the back of the case about halfway between the PCI slots and the power supply is holding it in place. Once that screw is removed, you can lift the support brace up and toward the front of the computer. It clips into the front, just above the floppy drive cage.
Next, the floppy drive cage needs to come out. Remove all cables connecting to any drives in the floppy cage. On the front of the computer, on either side of the floppy drive, there is a screw. Remove those two screws and set them aside. The floppy drive cage will slide back, then lift out. Set that aside.
Slide the hard drive into the bay so that the power and SCSI connectors are facing toward the back of the machine and the label is on top. Secure it by screwing it in from the bottom.
Replace the floppy drive cage. There are tabs on the floppy cage that will line up with notches on the cage above it. Then the floppy cage will slide back into place. Replace the two screws that attach the floppy drive cage to the front of the computer. The screws are located on either side of the floppy drive. Connect all the cables to the drives in the floppy cage.
Replace the support brace. Insert the hooks into the two slots near the front of the computer (above the floppy cage). Lower the support brace into its original position and replace the screw at the back.
Replace the RAID rack. Reconnect the CPU fan power cable to the main logic board. Position the cable so it goes around the CPU heat sink and does not get tangled in the heat sink. Line up the tabs on the the rack with notches on the support brace and slide back into place. Replace the two screws (one near the PCI slots and one on the support brace).
Now we need to connect the cables. Start with the secondary drive. Attach the multicolored cable (power cable) and the middle connector of the silver SCSI ribbon. Both cables are keyed, so you will not be able to put them in upside down. The attach the cables for the primary drive. You'll need one multicolored cable and the end connector of the silver SCSI ribbon.
Reassemble the computer per the following Tech Info Library article:
Article 36389:
Reassembling the case
Making sure it works
To see if the drives work, boot the computer. Boot from the PowerCD. In the Utilities folder of either the Power CD or your main hard drive, youÕll find Hard Disk Toolkit. In there, go to HDT Primer. When it comes up, click SCSI Bus and select Adaptec. You should see the two hard drives and the controller card listed there. The documentation that came with Conley SoftRAID will explain how to set up the software part of the RAID array.
Machines Affected: PowerTower Pro