This chapter explains how to install and remove the 1.05 Gbyte hard disk drive in the SPARCstation 10 system.
Caution -
Before you begin:
In this chapter, you can find instructions on how to perform the following procedures:
Recently released Sun systems and peripherals are now supplied with new regulated (active) SCSI terminators. Previously, Sun supplied standard SCSI terminators.
Both types are shown below:
All SCSI systems must be terminated at the first and last units attached to the SCSI bus. A terminator is built in to all SBus SCSI cards and to all host systems. For the last unit attached to the SCSI bus, the new regulated terminators provide the improved impedance matching required for fast SCSI.
The total SCSI bus length (including internal and external SCSI cables) for each single ended SCSI bus, as shown below, must not exceed 6 meters (20 feet). Refer to Appendix A for more information.
The regulated terminators must be used for all 50-pin SCSI busses having fast SCSI drives on a fast SCSI host. Devices with the 3-row 50-pin D connector or the 50-pin ribbon connector (old-style connectors) should not be used on the same bus with fast SCSI devices.
The mixing of fast SCSI devices and old-style connector devices in the same daisy chain is not recommended. If fast SCSI devices and old-style connector devices must be used in the same system, the old-style connector devices should be connected to a separate SCSI port that contains no fast SCSI devices.
To remove the cover of the system unit:
The screw will remain attached to the back panel after it is fully loosened from the cover.
Figure 3-1 Location of Captive Screw (Back Panel)
Figure 3-2 Location of Retainer Clip (Back Panel)
Push the cover forward until its hinge tabs are free of the system unit.
Figure 3-3 Removing the SPARCstation 10 Cover
You should now see the various subassemblies of the SPARCstation 10 system, including the power supply, as shown in Figure 3-4. Note that the right, front area of the chassis is reserved for two hard disk drives with drive position 1 as being next to the side of the enclosure, and with drive position 0 as being between the diskette drive and drive position 1.
The wrist strap provides grounding between your body and the chassis for static electricity since electric current and voltage do not pass through the wrist strap.
Caution -
To attach the wrist strap:
Note - Do not have the wrist strap attached and the system powered up when you handle the drive to verify the jumper settings.
Two types of drive kits can be ordered:
If you ordered a complete drive kit, the box should contain:
If you ordered a replacement drive, the kit will contain only the disk drive.
To unpack the drive:
Compare the packing list with the equipment you received. See Figure 3-5.
Figure 3-5 The 1.05 Gbyte Drive
The three sets of jumper blocks on the 1.05 Gbyte hard disk drive are located on the sides and underside of the drive. Two of the blocks are indicated below. The third block, which is located on the backside of the drive and is not shown in Figure 3-7, is without any jumpers and you must not add any to it.
Figure 3-6 The Locations of the Drive Jumpers
As shown above, there are two sets of jumper blocks that you need to check on for the 1.05 Gbyte drive:
The 1.05 Gbyte hard disk drive is a SCSI (Small Computer Systems Interface) device. Each SCSI device in your system needs a specific and unique SCSI ID number.
Refer to the handbook that is appropriate for your operating system to determine which SCSI addresses are available to you.
Perform the following procedure to determine the number of internal disk drives in your computer system and their SCSI addresses.
You should now see the ok prompt. See your handbook for SMCC peripherals if you need help.
Do not use target 6 which is only used for a CD drive.
If you need references to help with the commands listed, see the handbook that came with your peripheral.
To verify the SCSI ID jumpers:
If the settings are the same as in the figure, leave them as they are.
If the settings are not the same, change them to match the settings in the figure. Use needlenose pliers to install or remove jumpers.
Figure 3-7 Drive Position 0 Jumper Settings
If the settings are the same as in the figure, leave them as they are.
If the settings are not the same, change them to match the settings in the figure. Use needlenose pliers to install or remove jumpers.
Figure 3-8 Drive Position 1 Jumper Settings
To verify the configuration jumpers for a drive in either position 0 or 1:
If the settings are the same as in the figure, leave them as they are.
If the settings are not the same, change them to match the settings in the figure. Use needlenose pliers to install or remove jumpers.
Figure 3-9 Configuration Jumper Settings
The acronyms of the Configuration Jumpers are described below:
---------------------------------------
Acronym Description ---------------------------------------
RS (Reserved)
DS Delayed Start
ME Motor Enable (Remote Spin-up)
WP Write Protect
PE Parity Enable
SS (Reserved)
TP Term Power from Drive
TP Term Power to SCSI Bus
---------------------------------------
Refer to Figure 3-10 for the position numbers of the drives within the SPARCstation 10 chassis. Use position 0 if you are installing only one drive. To install a drive, refer to the section, "Installing a Hard Disk Drive."
Figure 3-10 Drive Positions
Depending to which position a drive is being installed, the settings of the target ID jumpers will be different. Refer to the table shown below for the correct settings.
-------------------------------------------------------
Drive Location Target ID Jumper Settings SCSI Address -------------------------------------------------------
Position 0 A0-Installed 3
A1-Installed
A2-Not Installed
Position 1 A0-Installed 1
A1-Not Installed
A2-Not Installed
-------------------------------------------------------
The SPARCstation 10 system can accommodate two disk drives. Each 1.05 Gbyte disk drive and its mounting grommets are secured to the chassis by aligning the four grommets on the sides of the drive with the drive mounts on the chassis and sliding the drive forward. A grommet is a circular, plastic eyelet through which a screw is passed to secure it to the drive. With two grommets on each side, the drive can be securely seated within the drive mounts on the chassis.
An internal disk cable and a power cable (already installed in the SPARCstation 10 system) connect to each drive.
To install a 1.05 Gbyte disk drive:
Figure 3-11 Grommets on the Disk Drive
If it isn't, try to get more slack by working out more of the cable out from the clips in the base of the chassis.
Figure 3-12 Connecting the Drive and the internal Cables
Figure 3-13 Seating the Drive Into the Drive Mounts
If the drive isn't seated properly, the cover will not close correctly.
Figure 3-14 Verifying the correct position of the Connector
If it isn't, repeat Step 7.
Refer to the section, "Replacing the SPARCstation 10 Cover."
If you received a new disk drive to replace a defective or lower-capacity drive, you will notice that grommets did not arrive with the new drive. Remove the grommets from the old drive with a Phillips screwdriver and install them onto the replacement drive. After installing the grommets on the new drive, refer to the "Installing a Hard Disk Drive" section.
Caution - Do not disconnect the power cord from the system unit power outlet or from the wall outlet. This connection provides the ground path necessary to safely remove and install the hard disk drive.
As an additional aid, you can order the SPARCstation 10 Field Service Manual which describes how to repair system problems by running diagnostic programs, and how to remove and replace parts, such as hard disk drives.
To remove a disk drive:
Refer to the section, "Removing the SPARCstation 10 Cover."
Refer to the section, "Attaching the Wrist Strap."
Drive position 1 is located in the corner of the chassis, and drive position 0 is located in the middle location. If the system is to have only one hard disk drive, it should be mounted in the center position (position 0).
Figure 3-15 Removing a Disk Drive
To replace the system unit's cover:
Figure 3-16 Replacing the SPARCstation 10 Cover
Caution -
Note - If the drive is not fully forward in the mounts, the top cover will not close.
You should hear a loud click if the cover is closed correctly when the plastic retainer clip snaps the cover to the back panel.
Figure 3-17 Pushing Down on the Corners of the SPARCstation 10 Cover
Be sure not to overtighten.
Refer to the section, "Restoring Power to the System."
Turn on the power switches in the following order:
If you replaced a hard disk drive containing your operating system, you must install your operating system onto the hard disk. Refer to the handbooks that came with your operating system for complete instructions.
Boot the system:
After you boot the operating system, log in at the login prompt.
For a newly installed peripheral device to work with a computer system, its device driver must be added or activated. Procedures for adding or activating a device driver differ among operating systems.
For example, if your system is running SunOS Version 4.x, you might need to modify the system kernel and make changes to the /dev directory by running the MAKEDEV command.
