This chapter tells you how to set up your desktop DLT drive. It includes information on the following topics:
To set your system's DLT drive up as a network resource, refer to IRIX Admin: Peripheral Devices and the IRIX NetWorker guides (IRIX NetWorker Administrator's Guide and NetWorker for IRIX User's Guide). If you need help with basic troubleshooting or maintenance procedures, go to Chapter 5.
If you have read the information in Chapter 1, “Introducing the DLT7000 and 2000XT Drives,” you know the differences in storage capacity and transfer rates between the two models of drive. You should read and understand this information before installing and using your desktop DLT drive.
The desktop 7000 and 2000XT drives install, look, and operate in a very similar manner. However, there are operational differences between the two models that require understanding and careful attention during the installation process.
The desktop 7000
uses differential SCSI and must be connected to a differential SCSI controller
uses a SCSI ID number between 1 and 15
can daisy-chain only to one additional differential desktop DLT 7000 (no other daisy-chained SCSI devices are supported)
The desktop 2000XT
is single-ended and must be connected to a single-ended SCSI controller
uses a SCSI ID number between 1 and 7
never daisy chains to another desktop DLT drive (or any other SCSI device)
Always verify the model of your desktop drive before installation.
The desktop DLT drive is designed to sit on your desk, on top of your deskside system, on a table, or on another flat and level surface. It is not designed to be placed on the floor.
Select a site using these guidelines:
For North American applications, place the DLT drive so that its power cord can reach a 110 VAC, three-pronged (grounded) electrical outlet.
For international applications, place the DLT drive so that its power cord can reach an approved electrical outlet.
Note: The desktop DLT drive has an autoranging power supply that works with 110 or 220 VAC. No operator voltage switch selection is required. Place the desktop DLT so that it is directly on top of, or next to, the host system. The SCSI cable measures 12 feet (3.7 m). Always use the SCSI cable shipped with your DLT drive for proper connection.
Always allow at least 3 inches (7.6 cm) of clearance at the back of the desktop DLT drive to provide proper ventilation space and cable clearance. Provide for easy access to the front and the back of the unit.
Always place the single-ended active terminator on the top SCSI connector of a desktop 2000XT DLT drive or SCSI errors may result.
Caution: Never connect the desktop DLT2000XT drive to a host system with any cable combination that exceeds 19.6 feet (6 m), including any internal cable length. Doing so may result in SCSI bus errors or data loss. Consult your system owner's guide for other specific SCSI bus requirements. Do not place the DLT drive in a small, enclosed area, such as a closet, or it may overheat. It is important not to block the vents.
Do not drape anything, such as a jacket or blanket, over the DLT drive.
Avoid placing the DLT drive in a dusty or humid location.
The desktop DLT drive is shipped in a single box. Inside, you should find
the DLT desktop tape drive
a 12-foot (3.7-meter), 68-pin SCSI cable
a patch CD
one data cartridge and one cleaning cartridge
this owner's guide
a set of international labels
a power cord
a single-ended SCSI terminator (for DLT2000XT only)
a differential SCSI terminator (for DLT7000 only)
Note: The single-ended and differential terminators are not interchangeable.
Any required international power cord or other optional equipment that you ordered is shipped in separate additional boxes.
After you unpack your DLT drive and its parts, make sure you have all the pieces shown in Figure 4-1.
Each desktop DLT drive must be properly configured, or SCSI bus errors and possible data loss may result when you bring the desktop DLT drive online. Each desktop DLT drive is assigned a default SCSI ID setting of 6 at the factory. You can leave it configured as it was shipped (providing no other devices on the bus use SCSI ID 6).
On the back of each desktop DLT drive is a SCSI ID switch with two buttons for setting the SCSI ID number. Only the SCSI IDs 1 through 7 can be used on the DLT2000XT. Press the top switch button to increase the number; press the bottom button to decrease the number.
As a general rule, hard disk drives are usually numbered up from 1, and removable media drives numbered down from 7.
After you have selected a site following the guidelines in “Selecting a Site”, and have completed all the configuration procedures, you are ready to install the desktop DLT drive.
After placing the DLT drive in its intended location, go on to the following sections for SCSI cable and power cord connection information.
You can position the DLT drive
on a work surface area near the host system
on top of an Origin2000 or Onyx2 deskside chassis
Caution: Do not stand the desktop DLT drive on its side and do not place it on the floor.
The desktop DLT7000 drive uses a differential SCSI connection only. You should note that it does not work with the BaseIO SCSI connector on your Origin or Onyx2 host system. The single-ended BaseIO SCSI connector is shown in Figure 4-3 in the next section “Connecting the Desktop DLT2000XT Drive to the Host”.
The optional Ultra SCSI XIO board supplies four differential (DF) SCSI connections (see Figure 4-2). You may connect the DLT7000 to any of these connections. The optional differential PCI SCSI board (P/N 9980984) may also be used to control the DLT7000.
To connect your desktop DLT7000 drive to the Origin2000 or Onyx2 host system, follow these steps:
Power off the host system.
Plug one end of the SCSI cable into port 0 (or the next available port) on the optional Silicon Graphics Ultra SCSI XIO board. Figure 4-2 shows the port 0 cable on the Ultra SCSI board. Alternately, you can connect the DLT7000 drive to a differential Silicon Graphics PCI SCSI option board (P/N 9980984).
Note: Do not use the host system's BaseIO single-ended SCSI connector. Plug the other end of the SCSI cable into the lower SCSI connector on the back of the desktop DLT drive. Figure 4-4 shows an example.
Always plug the incoming SCSI cable into the lower SCSI connector on the back of the unit. The upper connector should be used for termination or expansion.
Terminate the bus by installing the terminator included in the shipment to the top SCSI connector, as shown in Figure 4-4.
To connect your desktop DLT2000XT drive to the Origin2000 or Onyx2 host system, follow these steps:
Power off the host system.
Plug one end of the SCSI cable into the host's external single-ended SCSI connector on the BaseIO board. Alternately, you can connect the DLT2000XT drive to a single-ended Silicon Graphics PCI SCSI option board (P/N 9980983) or port 0 on the Silicon Graphics Ultra SCSI XIO board. Figure 4-2 shows the port 0 cable on the Ultra SCSI board.
Note: See Figure 4-3 if you are not sure of the location of the BaseIO single-ended SCSI connector. For additional information, consult the owner's guide for your system or your service representative. Plug the other end of the SCSI cable into the lower SCSI connector on the back of the desktop DLT drive. Figure 4-4 shows an example. Always use the upper SCSI connector for termination.
Terminate the bus by installing the terminator included in the shipment to the top SCSI connector, as shown in Figure 4-4.
To attach the power cord, follow these steps:
Connect the socket end of the cord to the power connector on the back of the desktop DLT drive chassis (see Figure 4-5).
Plug the other end into a three-pronged (or other approved type) grounded electrical outlet.
Note: Always power on the desktop DLT drive before powering on the host system. Always leave the DLT drive powered on while the host system is operational. Failure to follow these procedures can result in SCSI errors on the bus; for more information, see Table 5-4 in Chapter 5.
At the rear of the unit, turn on the DLT drive by pressing the side of the rocker switch with the “|” (see Figure 4-6.)
Power on the host system and its console or monitor.
The power-on self-test (POST) starts automatically at power-on. Observe the LEDs on the front panel, making sure that they light in the following order:
All LEDs on the right front panel light sequentially from top to bottom as the POST begins. The LEDs remain on for a few seconds.
All LEDs on the left front panel light simultaneously for about three seconds, and then turn off.
The green Operate Handle, the orange Write Protected, and the yellow Use Cleaning Tape LEDs turn off. The yellow Tape in Use LED blinks as the tape drive initializes.
After initialization, if no tape cartridge is loaded, the yellow Tape in Use LED turns off, the green Operate Handle LED turns on, the handle unlatches, and the beeper sounds. Figure 4-7 shows the LEDs on the front panel.
The power-on self-test takes about 15 seconds. However, the media might require more time to become ready for use.
After initialization, the drive is in one of the states shown in Table 4-1.
Drive State | Indicator Displays and Actions |
|---|---|
No cartridge present | Yellow Tape in Use LED turns off; green Operate Handle LED turns on. Handle unlatches; drive beeps momentarily. You can raise the handle and insert a cartridge. |
Cartridge present, handle down | The drive loads the cartridge. The drive is ready for use. |
Cartridge present, handle up (not recommended); no cartridge present, handle could be up (not recommended) | Yellow Tape in Use LED turns off; green Operate Handle LED flashes. When you lower the handle, the cartridge loads. |
Drive detects error condition | All right-panel LEDs blink repeatedly. Try to unload the cartridge and reinitialize the drive by pressing the Unload button, or power-cycle the drive (turn the drive power off and then on again). The right panel LEDs stop blinking and the drive attempts to reinitialize. If the self-test is successful, the LEDs remain on, and then turn off. |
If the power-on self test fails, or to run optional system tests, see Chapter 5.
Depending on how many desktop DLT drives you installed, some configuration steps may be necessary. The hinv command can confirm if your system recognizes the new DLT drives installed. Chapter 5 provides a sample hinv listing.
If you installed only a DLT drive, it should be ready to use with your system. For information on backing up and restoring data using the new tape drive, see the IRIX NetWorker guides (IRIX NetWorker Administrator's Guide and NetWorker for IRIX User's Guide).
Once you have installed the DLT drive in the chassis, load the CD supplied with the tape drive. Check the information in the release notes for which patches to install for your system; install the patch(es) using the Inst utility.
| Caution: Do not shut down the DLT drive until you are certain that nobody is logged in and accessing files stored on the DLT drive, or unless there is an emergency and you must turn off the system immediately. |
To power off the tape drive, follow these steps:
Facing the back of the desktop DLT chassis, press the “O” side of the rocker switch. The power turns off and the desktop DLT drive's front LEDs go dark.