This chapter explains how to install and remove the 1.05 Gbyte hard disk drive in the SPARCstation IPX system.
Caution -
Before you begin, complete the following steps:
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.
To remove the cover of the system unit:
Caution -
Caution -
To remove the top section from the system unit, perform the following steps in sequence:
Note - The unit top contains the power supply, the diskette drive, and the hard disk drive (see Figure 6-2). It is the heavier of the two sections.
Figure 6-1 Opening the System Unit
Figure 6-2 shows the various subassemblies of the system unit. The main logic board occupies the unit bottom. The SBus cards plug into the main logic board. Four slots on the main logic board accept the Single Inline Memory Modules (SIMMs).
The unit top contains the power supply in the rear of the top section. Mounted just in front of the power supply is the bracket for both the hard disk drive and the diskette drive.
Figure 6-2 System Unit and Subassemblies
The wrist strap provides grounding between your body and the chassis for static electricity. 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 only contain the disk drive.
To unpack the drive:
Compare the packing list with the equipment you received.
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 not shown in Figure 6-3, is not jumpered. You must not add any jumpers to this block.
Figure 6-3 1.05 Gbyte Hard Disk Drive Jumper Locations
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. The SCSI target address jumpers must be set to SCSI address 3 (pins A0 and A1 are jumpered).
Refer to the handbook that is appropriate for your operating system to determine which SCSI addresses are available to you. When you set the jumpers, each drive is automatically assigned a SCSI ID number.
To verify the SCSI ID jumpers:
Do not remove the drive bracket (if attached).
If the device address jumper 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 a needlenose pliers to install or remove jumpers.
Figure 6-4 SCSI Device Address Jumper Settings
To verify the configuration jumpers, compare the drive configuration jumper settings to the settings shown in Figure 6-5.
If the jumper settings are the same as in the figure, leave them as they are.
If the jumper settings are not the same, change them to match the settings in the figure. Use a needlenose pliers to install or remove jumpers.
Figure 6-5 Configuration Jumper Settings
---------------------------------------
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
---------------------------------------
The SPARCstation IPX system uses a drive bracket to attach the drive to the chassis. If grommets (small screw-type connectors) came with your drive kit, do not use them. Grommets are used to install disk drives into other SPARCstations, such as the SPARCstation 10 system.
The disk drive bracket resides in the top part of the system unit in front of the power supply (see Figure 6-6). It houses both the diskette drive supplied with the unit and the hard disk drive.
You don't need to remove the bracket to install a drive. However, you must remove the disk drive bracket before removing the diskette drive, or to replace the power supply.
Figure 6-6 Disk Drive Mounting Bracket
To install a hard disk drive:
Figure 6-7 Installing a Hard Drive
Figure 6-8 Connecting Data and Power Cables to the Drive
Refer to the section, "Replacing the SPARCstation IPX Cover."
A regulated (active) terminated is shown below.
Refer to the section, "Restoring Power to the System."
To replace the disk drive mounting bracket if you removed it:
Tilt the disk drive bracket toward the front of the unit. Gently lower the bracket into position in front of the power supply.
Figure 6-9 Removing and Replacing the Disk Drive Mounting Bracket
Note - The disk drive bracket must engage a securing ridge at the inside front of the unit top. If the bracket is installed incorrectly, you will not be able to insert diskettes into the diskette drive.
Tighten the captive Phillips head screw at the center rear of the bracket to secure it to the chassis. Be careful not to overtighten the screws or damage may result.
Refer to the section, "Replacing the SPARCstation IPX Cover."
The installation procedure for replacing a drive requires that you remove the data and power cables from the previously installed drive to install them on the replacement drive. A drive bracket and cables are not shipped with a replacement drive.
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.
To remove a drive:
Refer to the section, "Removing the SPARCstation IPX Cover."
Refer to the section, "Attaching a Wrist Strap."
Figure 6-10 Hard Disk Drive in the Disk Drive Bracket
To replace the SPARCstation IPX cover:
Rotate the unit top at a 15 degree angle and rotate your hand position so that thumbs and fingers point up and the five interlock hooks can be lined up.
Note - The interlock hooks do not engage until the unit is lowered to a 45 degree angle. Continue to hold the cover.
Figure 6-11 Closing the System Unit
Attach the lock block by inserting the PEM screw through the block on the outside, the security loop on the inside, and into the power supply. Tighten the screw with a screwdriver. Be careful not to overtighten the screw.
Figure 6-12 Attaching the Lock Block
See the installation manual that came with your External Storage Devices for further instructions.
See the "Restoring Power to the System" section.
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 software manuals that were shipped 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.
