VAX 4000 Model 200 (BA430) Operation Order Number EK–395AB–OM–002 Digital Equipment Corporation Maynard, Massachusetts
First Printing, December 1990 Revised, June 1991 The information in this document is subject to change without notice and should not be construed as a commitment by Digital Equipment Corporation. Digital Equipment Corporation assumes no responsibility for any errors that may appear in this document. The software, if any, described in this document is furnished under a license and may be used or copied only in accordance with the terms of such license.
Contents Preface ix Chapter 1 System Overview 1.1 Front View and Physical Description . . . . . 1.1.1 BA430 Enclosure . . . . . . . . . . . . . . . . . . 1.1.1.1 Mass Storage Shelf . . . . . . . . . . . . . . 1.1.1.2 Card Cage . . . . . . . . . . . . . . . . . . . . . 1.1.1.3 CPU Cover Panel . . . . . . . . . . . . . . . . 1.1.1.4 DSSI and KZQSA Connectors . . . . . . 1.1.1.5 Power Supply Controls and Indicators 1.1.1.6 Fans . . . . . . . . . . . . . . . . . . . . . . . . . . 1.
Chapter 2 Operating the System 2.1 2.2 2.2.1 2.2.2 2.3 2.4 2.4.1 2.4.2 2.5 2.6 2.7 2.8 2.9 Before You Operate the System . . . . . . . . . . . . . . Switch Settings . . . . . . . . . . . . . . . . . . . . . . . . . . Normal Operation . . . . . . . . . . . . . . . . . . . . . . Special Operation . . . . . . . . . . . . . . . . . . . . . . . Turning On the System . . . . . . . . . . . . . . . . . . . . Booting the System . . . . . . . . . . . . . . . . . . . . . . . Autobooting the System . . . . . . . . . .
3.1.3.7 Summary of TK70 Tape Drive Controls and Indicator Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.1.4 TLZ04 Tape Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.1.4.1 Proper Handling of Cassette Tapes . . . . . . . . . . . . . . . 3.1.4.2 Setting the Write-Protect Tab on the Cassette Tape . . . 3.1.4.3 Inserting a Cassette Tape into the Drive . . . . . . . . . . . 3.1.4.4 System Software . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appendix C Backup Procedures C.1 Overview of Standalone BACKUP . . . . . . . . . . . . . . . . . C.1.1 Installing Standalone BACKUP on the System Disk . C.1.2 Booting Standalone BACKUP from the System Disk . C.1.3 Installing Standalone BACKUP on a Tape Cartridge . C.1.4 Booting Standalone BACKUP from a Tape Cartridge C.2 Backing Up the System Disk . . . . . . . . . . . . . . . . . . . . . C.3 Restoring the System Disk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figures 1–1 1–2 1–3 1–4 1–5 1–6 1–7 1–8 1–9 1–10 1–11 1–12 1–13 2–1 2–2 2–3 2–4 2–5 2–6 2–7 3–1 3–2 3–3 3–4 3–5 3–6 3–7 3–8 3–9 3–10 3–11 3–12 3–13 3–14 3–15 VAX 4000 Model 200 (BA430) System . . . . . . . . . . . Key Positions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Upper Door Opened . . . . . . . . . . . . . . . . . . . . . . . . . Entire Door Opened . . . . . . . . . . . . . . . . . . . . . . . . . Front View of the BA430 Enclosure . . . . . . . . . . . . . Mass Storage Shelf . . . .
3–16 Inserting the Head Cleaning Cassette . . . . . . . . . . . . . . . . . . 3–37 B–1 VMS Operating System Requires Unique Unit Numbers for DSSI Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–4 B–2 Attaching a Unit Number Label to the Device Front Panel . . B–11 Tables 2–1 2–2 3–1 3–2 3–3 3–4 3–5 3–6 3–7 3–8 C–1 viii Normal Power-Up Indications . . . . . . . . . . . . . . . . . . . . . Device Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preface This manual describes how to use VAX 4000 Model 200 (BA430) timesharing and VAXserver 4000 Model 200 (BA430) server systems. The hardware and software for each of these systems differ slightly, according to the function of the system. The VAX 4000 is a multiuser system that uses the VMS operating system. The VAXserver 4000 system is a single-user system that uses VMS or VAXELN operating systems. Both systems can function as an end- or full-function node on an Ethernet network.
Conventions The following conventions are used in this manual: Convention Meaning Key A symbol denoting a terminal key used in text and examples in this book. For example, Break indicates that you press the Break key on your terminal keyboard. Return indicates that you press the Return key on your terminal keyboard. Ctrl/C A symbol indicating that you hold down the Ctrl key while you press the C key. BOLD This bold type indicates user input.
Chapter 1 System Overview VAX 4000 Model 200 (BA430) systems house all components in a BA430 enclosure.
1.1 Front View and Physical Description The front of the system has a divided door that restricts access to the system controls. Figure 1–1 shows the system with the front door closed. Figure 1–1: VAX 4000 Model 200 (BA430) System MLO-004032 A three-position rotary lock allows you to lock both the upper and lower doors, or to lock just the lower door.
Figure 1–2 shows the three key positions and the controls accessible in each position.
Figure 1–3 shows the system with the upper portion of the door opened.
Figure 1–4 shows the system with the entire door opened. Figure 1–4: Entire Door Opened Bottom Key Position MLO-005501 The next section describes the BA430 enclosure, which is exposed when you open the entire door.
1.1.1 BA430 Enclosure Opening the front door enables you to access the components housed in the BA430 enclosure. Figure 1–5 shows a typical configuration.
Figure 1–5: Front View of the BA430 Enclosure Integrated Storage Elements (ISEs) Tape Drive System Control Panel (SCP) Power Supply CPU Cover Panel Fans Card Cage MLO-005502 System Overview 1–7
1.1.1.1 Mass Storage Shelf The mass storage shelf extends across the top of the enclosure. The shelf contains a system control panel (SCP), tape drive, and up to three RF-series ISEs (tapeless systems can have up to four RF-series ISEs). Each ISE has its own panel with controls and indicators. Instructions for using ISEs and the TF85, TK70 or TLZ04 tape drive are in Chapter 3. The SCP is to the right of the storage devices. Figure 1–6 shows the mass storage shelf.
position. Before you can enter console commands, press the Halt button again to return it to the out position. When the Halt button is returned to the out position, the console mode prompt (>>>) is displayed on the console terminal screen. Now you can enter console commands. If you inadvertently press the Halt button, enter c Return to continue. Chapter 2 describes halting the system in more detail.
1.1.1.2 Card Cage The modules in your system are mounted in a 12-slot card cage under the mass storage shelf, as shown in Figure 1–7. Figure 1–7: Card Cage Slots 12 - 1 MLO-005503 The first slot is reserved for the central processing unit (CPU). Up to four MS650 memory modules may follow the CPU. The CPU and the first memory module (slots 1 and 2) are covered by a dual-width CPU cover panel with system controls and connectors. The remaining slots are available for Q-bus option modules.
The number and type of modules installed in your system depend on your configuration. Each Q-bus slot, even an empty one, is protected by a module cover. The purpose of the shield is as follows: • To protect external devices from electrical interference generated by the system • To protect the system from electrical interference generated by external devices • To maintain air flow integrity CAUTION: Do not operate the system without Digital-supplied module covers.
1.1.1.3 CPU Cover Panel The CPU module and the first memory module are behind a double-width cover panel that has internal cable connections to the memory module(s). Figure 1–8 shows the CPU cover panel.
The CPU cover panel has the following components: Power-Up Mode switch—This three-position rotary switch determines how the system responds at power-up: Language Inquiry Mode (in the top position, indicated by a profile of a face) causes the system to display a language selection menu at power-up if your console terminal supports multiple languages.
The Break Enable/Disable switch also controls what happens at power-up. When breaks are disabled (down, dot outside the circle), the system attempts to automatically boot software at power-up. When breaks are enabled (up, dot inside the circle), the system enters console mode (indicated by the (>>>) prompt) at power-up.
Figure 1–9: DSSI and KZQSA Connectors KZQSA In Connector DSSI Connector MLO-005505 1.1.1.5 Power Supply Controls and Indicators To the right of the card cage is the power supply. The power supply provides power to the mass storage devices, the modules installed in the card cage, and the fans. To prevent damage due to overheating, the power supply monitors the internal temperature and the speed of the fans.
Figure 1–10 shows the controls and indicators on the power supply. Figure 1–10: Power Supply Controls and Indicators Power Supply Power Switch AC Present Indicator DC OK Indicator Fan Failure Indicator Over Temperature Condition Indicator Power Bus Connectors Power Cable Connector MLO-005506 The controls and indicators function as follows: Power switch—The Power switch is used to turn system power on and off. The off position is indicated by a 0; the on position is indicated by a 1.
AC Present Indicator—The orange AC Present indicator lights when the Power switch is set to on and voltage is present at the input of the power supply. If the AC Present indicator does not light when the Power switch is set to on, refer to your VAX 4000 Model 200 Troubleshooting and Diagnostics manual. DC OK—When the green DC OK indicator is lit, the power supply voltages are within the correct operating range.
bus with more than one expander, the power control bus signal is passed along, using the secondary in and out connectors as shown in Figure 1–11. The secondary out (SO) connector sends the signal down the power bus for configurations of more than one expander. Figure 1–11: Sample BA430 Power Bus Configuration System Expander 1 Expander 2 MLO-004041 1.1.1.6 Fans Two fans located under the card cage draw air in through the top of the enclosure, down through the card cage, and out the bottom.
NOTE: The fan speed control can be set so that the fans will run at their maximum speed. This setting is recommended if you want potentially higher system module reliability, and do not object to the increased fan noise. Contact your Digital service representative to override the fan speed control. Figure 1–12: System Air Circulation MLO-004042 1.2 Functional Description of Base System Each VAX 4000 system includes base system components common to all systems.
• Network controller • Embedded DSSI host adapter 1.2.1.1 Central Processing Unit (CPU) The central processing unit (CPU) controls the execution of all instructions and processes. The CPU circuits contain the logic, arithmetic, and control functions used by the system. 1.2.1.2 Console Serial Line Unit (SLU) Each system has a serial line unit connecting the console terminal to the system. The SLU connector (a modified modular jack) is located on the CPU cover panel.
1.2.1.5 Embedded DSSI Host Adapter Your system has a Digital Storage Systems Interconnect (DSSI) adapter built into the CPU module. The DSSI adapter provides a path to the DSSI bus through which the CPU communicates with DSSI devices. A DSSI adapter can support seven DSSI devices. The DSSI host adapter also allows you to link the DSSI bus to a second host to form a dual-host configuration. When a DSSI bus is extended to a second system, both systems can share up to six DSSI devices. Refer to Section 1.
input devices when you install software or copy data to your system. You use tape cartridges and tapes as output devices when you copy software or data from your system. You can copy individual files or programs or you can copy (back up) the contents of an entire fixed disk. Tapes are commonly used to archive data. Mass Storage Controllers and Adapters All mass storage devices require a controller, a device that controls activity between the CPU and the mass storage devices.
• The R215F expander provides space for up to three RF-series ISEs. • The B400X expander provides 10 additional Q-bus slots for a system total of 22 Q-bus slots. The B400X also has space for up to four additional RF-series ISEs or up to three ISEs and a tape drive (TF85, TK70, or TLZ04). • The B213F expander also provides 10 additional Q-bus slots and provides space for up to four RF-series ISEs or up to three ISEs and a TK70 tape drive.
NOTE: Printers equipped with a microprocessor (intelligent printers) may require modem control signals to function correctly. Do not attach a printer requiring modem control signals to a controller with no modem support. Check your printer documentation to determine the proper communications interface for your printer. Communications controllers with modem support allow you to communicate over telephone lines.
controller function for your system is implemented on the CPU module, but a second network controller, the DESQA Ethernet adapter module, can be added to your system. 1.2.2.5 Real-Time Controllers Real-time controllers interface with devices that monitor or control particular processes; for example, laboratory equipment or manufacturing equipment connected to the system. Typically, real-time controllers are parallel devices, not serial devices. 1.2.2.
NOTE: Dual-host capability for VAX 4000 Model 200 systems is only supported under VMS (Version 5.4 and later) when the two systems are configured into the same VAXcluster. The benefits of a dual-host configuration are: • VAXcluster features such as shared data across systems and satellite nodes. • Higher system availability—If one of the DSSI-based systems is unavailable, for example, due to a system malfunction, the satellites booted through it are able to continue operating through the other system.
Figure 1–13: Dual-Host Configuration MLO-004043 VAX 4000 Dual-Host Systems provides more information on dual-host configurations.
Chapter 2 Operating the System This chapter describes how to operate your VAX 4000 (BA430) system once the system software has been installed or you have completed startup procedures for factory-installed VMS. 2.1 Before You Operate the System This chapter assumes that your system has been properly installed. Installation includes running the diagnostic software and installing the base operating system, or completing the first time startup procedures for factory-installed VMS.
With breaks disabled, the system automatically boots system software when powered on. NOTE: You can use the console command SET CONTROLP to specify the control character, Ctrl/P , rather than Break , to initiate a break signal. Using the console commands, SET HALT REBOOT and SET HALT RESTART_REBOOT, you can set your system to override the Break Enable/Disable switch and automatically boot software after an error halt condition or power-up, even if breaks are enabled.
Enable/Disable switch and automatically boot software after an error halt condition or power-up, even if breaks are enabled. • If you want data on a particular ISE to be write protected, you must set the Write-Protect switch to in (glows). NOTE: ISEs containing system software and user accounts must remain write enabled. ISEs containing applications or sensitive data may be write protected.
If the Power-Up Mode switch is set to Run Mode (indicated by an arrow), then the language selected is saved and is automatically used during subsequent reboots of the system. NOTE: If the Power-Up Mode switch is set to Language Inquiry Mode (indicated by the human profile), the system prompts for the language at each power-up. In addition to the Language Selection Menu, the system may issue a list of bootable devices and prompt you to select a device from the list. If this happens, refer to Section 2.4.
Table 2–1: Normal Power-Up Indications Indicator Normal Indication System DC OK indicators (power supply and SCP) Glow green. AC Present indicator (power supply) Glows orange. RF-series ISE Run/Ready indicators (Run/Ready buttons) Glow green steadily within 20 seconds. RF-series ISE Fault indicator Lights temporarily at power-up. TF85 tape drive indicators Orange, yellow, and green lights glow during self-tests. The green light remains on.
Figure 2–2: Sample Error Summary KA660-A Vn.n VMB n.n Performing normal system tests. 95..94..93..92..91..90..89..88..87..86..85..84..83..82..81..80.. 79..78..77..76..75..74..73..72..71..70..69..68..67..66..65..64.. 63..62..61..60..59..58..57..56..55..54..53..52..51..50..49..48.. 47..46..45..44..43..42..41..40..39..38..37..36..35..34..33..32.. 31..30..29..28..27..26..25..24..23..22..21..20..19..18..17..16.. 15..14..13..12..11..10..09..08..07.. ?58 2 02 FE 0004 0000 02 ; SUBTEST_58_02, DE_SHAC_RESET.
Figure 2–3 shows a successful power-up and automatic boot when DIA0 has been selected as the boot device. Figure 2–3: Successful Power-Up and Automatic Boot KA660-A Vn.n, VMB n.n Performing normal system tests. 95..94..93..92..91..90..89..88..87..86..85..84..83..82..81..80.. 79..78..77..76..75..74..73..72..71..70..69..68..67..66..65..64.. 63..62..61..60..59..58..57..56..55..54..53..52..51..50..49..48.. 47..46..45..44..43..42..41..40..39..38..37..36..35..34..33..32.. 31..30..29..28..27..26..25..24..23..22..
Figure 2–4: Successful Power-Up to List of Bootable Devices KA660-A Vn.n VMB n.n Performing normal system tests. 95..94..93..92..91..90..89..88..87..86..85..84..83..82..81..80.. 79..78..77..76..75..74..73..72..71..70..69..68..67..66..65..64.. 63..62..61..60..59..58..57..56..55..54..53..52..51..50..49..48.. 47..46..45..44..43..42..41..40..39..38..37..36..35..34..33..32.. 31..30..29..28..27..26..25..24..23..22..21..20..19..18..17..16.. 15..14..13..12..11..10..09..08..07..06..05..04..03.. Tests completed.
Figure 2–5: Selecting a Bootable Device KA660-A Vn.n VMB n.n Performing normal system tests. 95..94..93..92..91..90..89..88..87..86..85..84..83..82..81..80.. 79..78..77..76..75..74..73..72..71..70..69..68..67..66..65..64.. 63..62..61..60..59..58..57..56..55..54..53..52..51..50..49..48.. 47..46..45..44..43..42..41..40..39..38..37..36..35..34..33..32.. 31..30..29..28..27..26..25..24..23..22..21..20..19..18..17..16.. 15..14..13..12..11..10..09..08..07..06..05..04..03.. Tests completed. Loading system software.
Using the SET BOOT Command To direct the system to boot automatically from a specific device or to change the setting of the default boot device, put the system into console mode and at the prompt (>>>), enter ‘‘SET BOOT device-name’’. For example, >>>SET BOOT EZA0 sets the system default boot device to be the Ethernet controller. Once you have selected a boot device, the system autoboots from that device each time you turn it on.
Figure 2–6: Sample SHOW DEVICE Display >>>SHOW DEVICE DSSI Bus 0 Node 0 (CLYDE) -DIA0 (RF31) DSSI Bus 0 Node 1 (BONNIE) -DIA1 (RF31) DSSI Bus 0 Node 7 (*) UQSSP Tape Controller 0 (774500) -MUA0 (TK70) SCSI Adaptor 0 (761400), SCSI ID 7 -MKA0 (DEC TLZ04 1991(c)DEC) Ethernet Adapter -EZA0 (08-00-2B-06-10-42) Table 2–2: Device Names Device Type Controller/Adapter Device Logical Name RF-series ISE Embedded DSSI host adapter (part of CPU) DIAu1 RF-series ISE KFQSA DSSI storage adapter DUcu2 TF85 tape d
2.4.2 Booting the System from Console Mode When the Break Enable/Disable switch is set to enable, the system powers up to console mode (indicated by the (>>>) prompt) after successfully completing its self-tests (assuming you have not defined a halt action of REBOOT or RESTART_REBOOT, using the SET HALT console command). Figure 2–7 shows a successful power-up to console mode. Figure 2–7: Successful Power-Up to Console Mode KA660-A Vn.n VMB n.n Performing normal system tests. 95..94..93..92..91..90..89..88..
NOTE: To determine the name of the device from which to boot the system, refer to Table 2–2. Software manuals may instruct you to power up with break enabled and to use the BOOT command. 2.5 Using the System Once the system software is loaded, the first display for the system software appears on the console terminal after a few seconds. That display is described in the system software documentation. You are now ready to use the system.
NOTE: You can use the console command SET CONTROLP to specify the control character, Ctrl/P , rather than Break , to initiate a break signal. CAUTION: If you shut off your console terminal while breaks are enabled, the system interprets the action as a break, and the system halts. If you are using a system that is part of a VAXcluster, do not halt, restart, or turn off the system without consulting the cluster manager. Performing any of these activities will interrupt the processes of the entire cluster.
2.9 Recovering from an Over Temperature Condition If your system’s internal temperature approaches a level that may cause components to overheat, an audible alarm will sound and the Over Temperature Warning indicator on the SCP will flash. If the temperature continues to increase, the system will automatically shut down. When the system shuts down due to overheating, the Over Temperature Condition indicator on the power supply remains lit.
Chapter 3 Operating the System Options This chapter describes how to use options that may already be part of your system, or that you can add to your system. The following types of options are covered: • Mass storage devices and controllers • Communications controllers • Real-time controllers • Printers NOTE: Some variants of these options may not be appropriate for VAXserver 4000 systems.
3.1.1 RF-Series Integrated Storage Elements Your system may have up to four RF-series ISEs or up to three RF-series ISEs and a tape drive. When your system has multiple ISEs, Digital recommends that you separate them according to function. For example, if your system has two ISEs, you may want to use them as follows: • ISE 0 contains the operating system and applications installed on the system. • ISE 1 contains work areas for each user with an account on the system.
Figure 3–1: RF-Series ISE Controls and Indicators Run/Ready Button Write-Protect Button Bus Node ID Plug Fault Indicator MLO-004044 Each ISE has the following controls and indicators on its front panel: • Bus node ID plug • Fault indicator • Write-Protect button • Run/Ready button Bus node ID plugs identify the bus node number of the ISEs to the system, as well as the unit number by default. Bus node numbers are configured at the factory in consecutive order from right to left.
Table 3–1: RF-Series Controls and Indicators Control Position Function Bus Node ID Plug Installed The bus node ID plug identifies the bus node ID number of the ISE to the system and is, by default, the unit number. The ISE bus node ID is factory set to a number 0 through 6. Not Installed The ISE bus node number is undefined. The ISE fault indicator lights. Lit Indicates an error condition in the ISE. The light is on temporarily during powerup sequence (normal condition).
3.1.1.2 Changing the Bus Node ID Plugs Spare bus node ID plugs are supplied with your system. Use the spare plugs when you add ISEs, reconfigure your system with an expander, or create a dual-host configuration. The bus node ID plugs have prongs on the back that indicate the bus node number (and by default, the unit number) of the ISE. To remove a bus node ID plug, grasp it firmly and pull straight out.
NOTE: If you change the bus node ID plugs while the system is operating, you must turn off the system and then turn it back on for the new plug addresses to take effect. 3.1.2 TF85 Tape Drive The TF85 tape drive is located behind the upper door of the system. To use the drive, move the key to the top position and open the door. The TF85 tape drive holds one removable magnetic tape cartridge.
• Write-Protected (Orange): A steady orange light shows that the cartridge is write protected. • Tape in Use (Yellow): A steady yellow light shows the tape is loaded. A blinking yellow light shows the tape is in motion. • Use Cleaning Tape (Orange): A steady orange light shows the drive needs cleaning. • Operate Handle (Green): A steady green light shows you can move the handle to insert or remove a tape. A blinking green light shows a cartridge load fault.
3.1.2.1 Design of the Drive The TF85 tape drive operates like a reel-to-reel tape deck. Inside the drive is a take-up reel with a leader attached. Inside the cartridge is a single reel containing the magnetic tape. When you insert the cartridge and push in the handle, the leader in the drive automatically couples with the leader in the cartridge, and the tape winds onto the take-up reel. The coupling and winding process is called loading.
Figure 3–4: Labeling a Tape Cartridge Label Slot MLO-000960 NOTE: Do not write on the tape cartridge or attach labels to the top, bottom, or sides of the cartridge. 3.1.2.3 Write-Protecting a Tape Cartridge Write-protecting a tape cartridge prevents accidental erasure of information stored on the tape. You can write-protect a tape cartridge in two ways: • Set the write-protect switch on the cartridge to the write-protect position.
Your system can read information on the tape regardless of the position of the write-protect switch or whether writing is software disabled. However, the system cannot write data to the tape when the write-protect switch is set to the write-protect position, or when writing is software disabled. When you use a cartridge to install software, make sure the cartridge is write protected. Two icons on the switch indicate the write-protect status, as shown in Figure 3–5.
Figure 3–5: Tape Cartridge Write-Protect Switch WriteProtected Not WriteProtected MLO-000961 • If the cartridge is write protected only by a software command and not the write-protect switch, removing the operating system restriction causes the write-protect indicator to go out. • If the cartridge is write protected by both the switch on the cartridge and a software command, you must change the switch setting and remove the operating system restriction.
When you use a CompacTape III cartridge to make a backup copy of files, make sure the orange write-protect indicator on the TF85 is off. If the indicator is not off, check for any of the write-protect conditions described above. Change the switch setting and/or operating system restriction as necessary. Do not begin your operation until the write-protect indicator goes off. • Do not touch the exposed surface of the tape. • Do not drop the tape cartridge.
attempt to use the tape drive or to remove the tape cartridge. Call your Digital service representative. Use the following procedure to insert a tape cartridge (see Figure 3–6): 1. Pull the handle open. 2. Position the cartridge so the arrow on the cartridge faces left and points toward the drive. Insert the cartridge into the tape drive until you feel the cartridge lock into place. 3. Push the handle closed. The green indicator goes off and the yellow indicator blinks as the tape loads.
Figure 3–6: Inserting a Tape Cartridge Green Indicator Is On TF Use Cle an Tap ing e 85 1 Handle TF Use Cle an Tap ing e 85 2 Cartridge Arrow Is Facing Left TF Use Cle an Tap ing e 85 3 Yellow Indicator Blinks MLO-006544 3–14 VAX 4000 Model 200 (BA430) Operation
3.1.2.5 Removing a Tape Cartridge You must unload a tape before you can remove the cartridge from the tape drive. Use the following procedure (see Figure 3–7): 1. Press the Unload button. You can also issue a software command to unload the cartridge. Refer to your system software manuals for the appropriate command. The yellow (Tape in Use) indicator blinks slowly, as the tape rewinds and unloads into the cartridge. This may take up to 90 seconds. 2.
1 TF Use Cle an Tap ing e 85 Figure 3–7: Removing a Tape Cartridge 2 TF Use Cle an Tap ing e 85 Unload Button Yellow Indicator Blinks Green Indicator Is On 3 TF Use Cle an Tap ing e 85 Handle 4 TF Use Cle an Tap ing e 85 Cartridge Arrow Is Facing Left Green Indicator Is On MLO-006545 3–16 VAX 4000 Model 200 (BA430) Operation
3.1.2.6 Summary of TF85 Tape Drive Controls and Indicators Table 3–3 summarizes the TF85 tape drive controls. Table 3–4 describes the meaning of the indicators. Table 3–3: TF85 Tape Drive Controls Control Position Function Handle Open Lets you insert or remove a tape after rewind and unload operations are completed. Closed Locks tape in operating position and begins load sequence. Unload button Momentary contact switch Rewinds and unloads the tape.
Table 3–4 (Cont.): TF85 Tape Drive Indicators Write Protected Use CleanTape in Use ing Tape Open Handle Blinking Blinking Blinking Blinking Condition A fault is occurring. Press the Unload button to unload the tape cartridge. If the fault is cleared, the yellow indicator blinks while the tape rewinds. When the green indicator comes on, you can move the handle to remove the cartridge. If the fault is not cleared, all four lights continue to blink. Do not attempt to remove the tape cartridge.
You should use a CompacTape II as an output device to make copies or backups of software or data. The TK70 drive cannot write to a CompacTape II or CompacTape that has been previously written by a TK50 tape drive. TK70 Tape Drive Controls The tape drive has two primary controls: the cartridge insert/release handle (subsequently referred to as the ‘‘handle’’) and the Unload button. You use the handle to insert or remove cartridges and lock them into position.
Wr Pr ite ote cte d Figure 3–8: TK70 Tape Drive Orange Light Yellow Light Green Light Unload Button Handle MLO-002292 3.1.3.1 Design of the Drive The TK70 tape drive operates like a reel-to-reel tape deck. Inside the drive is a take-up reel with a leader attached. Inside the cartridge is a single reel containing the magnetic tape.
Figure 3–9: Labeling a Tape Cartridge Label Slot MLO-000960 To indicate that the tape was recorded on a TK70 tape drive, check the box labeled 296MB. The 95MB box is used for tapes recorded on a TK50 drive. NOTE: Do not write on the tape cartridge or attach labels to the top, bottom, or sides of the cartridge. 3.1.3.3 Write-Protecting a Tape Cartridge Write-protecting a tape cartridge prevents accidental erasure of information stored on the tape.
• Write-protect the cartridge by using operating system commands described in your system software manuals. Your system can read information on the tape regardless of the position of the write-protect switch or whether writing is software-disabled. However, the system cannot write data to the tape when the write-protect switch is set to the write-protect position, or when writing is software disabled. When you use a cartridge to install software, make sure the cartridge is write-protected.
Figure 3–10: Tape Cartridge Write-Protect Switch WriteProtected Not WriteProtected MLO-000961 • If the cartridge is write protected only by a software command and not the write-protect switch, removing the operating system restriction causes the orange light to go out. • If the cartridge is write protected by both the switch on the cartridge and a software command, you must change the switch setting and remove the operating system restriction.
When you use a CompacTape II cartridge to make a backup copy of files, make sure the orange write-protect light on the TK70 drive is off. If the light is not off, check for any of the write-protect conditions described above. Change the switch setting and/or operating system restriction as necessary. Do not begin your operation until the orange light goes off. 3.1.3.4 Tape Cartridge Handling and Storage Guidelines • Do not touch the exposed surface of the tape. • Do not drop the tape cartridge.
is not cleared, the three lights continue to flash. Do not attempt to use the tape drive or to remove the tape cartridge. Call your Digital service representative. Use the following procedure to insert a tape cartridge (see Figure 3–11): 1. Pull the handle open. 2. Position the cartridge so the arrow on the cartridge faces left and points toward the drive. Insert the cartridge into the TK70 tape drive until you feel the cartridge lock into place. 3. Push the handle closed.
Figure 3–11: Inserting a Tape Cartridge 1 Green Light Is On Handle 2 Cartridge Arrow Is Facing Left 3 Yellow Light Blinks MLO-002459 3–26 VAX 4000 Model 200 (BA430) Operation
3.1.3.6 Removing a Tape Cartridge You must unload a tape before you can remove the cartridge from the tape drive. Use the following procedure (see Figure 3–12): 1. Press the Unload button. You can also issue a software command to unload the cartridge. Refer to your system software manuals for the appropriate command. The yellow (Tape in Use) light blinks slowly, as the tape rewinds and unloads into the cartridge. This may take up to 90 seconds. 2.
Figure 3–12: Removing a Tape Cartridge 1 Unload Button Yellow Light Blinks 2 Green Light Is On Handle 3 Cartridge Arrow Is Facing Left 4 Green Light Is On MLO-002460 3–28 VAX 4000 Model 200 (BA430) Operation
3.1.3.7 Summary of TK70 Tape Drive Controls and Indicator Lights Table 3–5 summarizes the TK70 tape drive controls. Table 3–6 describes the meaning of the indicator lights. Table 3–5: TK70 Tape Drive Controls Control Position Function Handle Open Lets you insert or remove a tape after rewind and unload operations are completed. Closed Locks tape in operating position and begins load sequence. Momentary contact switch Rewinds and unloads the tape.
3.1.4 TLZ04 Tape Drive The TLZ04 tape drive is located behind the upper door of the system. To use the drive, move the key to the top position and open the door. The TLZ04 tape drive is a back up device that uses digital data storage (DDS) and digital audio tape (DAT) recording technologies. Digital audio tape, such as TLZ04 cassettes, takes advantage of the TLZ04 tape drive’s helical scan technology. This technology allows more data to be stored on tape by recording data diagonally.
TLZ04 Tape Drive Controls and Indicators Figure 3–13 shows the TLZ04 tape drive. Figure 3–13: TLZ04 Tape Drive Unload Button Drive Indicator Tape Indicator Bus Node ID Plug 0 MLO-005538 The Unload button is used to eject the cassette tape. The Tape and Drive indicators show the status of the TLZ04 and can indicate possible error conditions. CAUTION: Pressing the Unload button during normal tape operations may halt the tape operation in progress.
Table 3–7: TLZ04 Drive Indicators (Normal Conditions) Indicator Color(s) Tape Meaning Indicates status of cassette tape as follows. Solid green Tape loaded. Solid yellow Tape loaded and write protected. Solid green Drive ready/power on. Flashing green Drive active. Flashing yellow Power-up self-test in progress. Drive Indicates status of TLZ04 drive as follows.
3.1.4.2 Setting the Write-Protect Tab on the Cassette Tape If you wish to read or copy from a tape, set the write-protect tab on the cassette to write-protect. This disables writing to tape and ensures data integrity. Use a pen (not pencil) to set the write-protect tab (Figure 3–14) to the desired position. Observe the following guidelines when setting the write-protect tab. • If you are reading data (copying from tape), set the write-protect tab to write-protected.
Figure 3–14: Setting the Write-Protect Tab on the Cassette Tape WriteProtected D D igi S ata tal to ra g e Not WriteProtected MLO-005329 3.1.4.3 Inserting a Cassette Tape into the Drive Insert the TLZ04 cassette tape into the drive with the cassette’s writeprotect tab at the top, as shown in Figure 3–15.
Digital Data Storage Figure 3–15: Inserting a Cassette Tape into the Drive This fig. was rotated with QA trilb MLO-005331 3.1.4.4 System Software System software allows you to execute commands to read and write data to the cassette tape.
3.1.4.5 Cleaning the Heads Statistics show that more than 90 percent of drive-related problems are associated with the media. Therefore, Digital Equipment Corporation strongly recommends that you follow the instructions for handling cassette tapes and cleaning the heads of the drive. This section shows you how to perform TLZ04 head cleaning. The heads are the components, in a drive, that magnetically read and write data to and from the media (in this case, a cassette tape).
Cassette Cleaner Digital Head Cleaner Figure 3–16: Inserting the Head Cleaning Cassette This fig. was rotated with QA trilb MLO-005332 3.1.5 RV20 Optical Disk Subsystem If your system includes an RV20 Optical Disk Subsystem, refer to the RV20 Optical Disk Subsystem Owner’s Manual for instructions on how to operate the device.
3.1.6 RRD40-Series Compact Disc Drive Subsystem If your system includes an RRD40-series Compact Disc Drive Subsystem, refer to its user’s guide for instructions on operating the device. 3.1.7 TSV05 Tape Drive If your system includes a TSV05 tape drive, refer to the TSV05 Tape Transport System User’s Guide for instructions on how to operate the device. NOTE: The TSV05 is a data interchange device and is not supported as a backup device. 3.1.
3.2.1.1 Asynchronous Controllers Without Modem Support Before using any peripheral device connected to a serial communications controller, check the following: • Make sure the peripheral device is properly connected to the system. • Make sure the peripheral device is properly installed, plugged into an appropriate power source, and turned on. • Make sure the peripheral device is properly set up. Set-up involves choosing how the device operates.
10. Use the arrow keys to select the Save Current Settings option. Press Enter to save all current settings; then press Set-Up to exit the Set-Up Directory. Your operating system may have other requirements for using serial communications devices. Refer to your system software manual. 3.2.1.2 Asynchronous Controllers with Modem Support Using serial devices with modem support requires that you install two modems: one connected to the system and one connected to the remote terminal.
• KMV1A—Programmable communications interface, Q-bus controller Before using a synchronous controller you must verify the following: • The system you want to communicate with has an appropriate synchronous controller. Synchronous communications require a synchronous controller on both the transmitting and receiving system. • Both the transmitting and receiving systems must have supporting host software installed.
Some software products, for example, Ethernet-based VAXcluster systems, use the Ethernet hardware address of other systems to operate properly. To find the hardware address of your Ethernet device, use the command SHOW ETHERNET from console mode.
The VAX 4000 systems have several printer options available. Consult the VAX 4000 Model 200 Technical Information for a list of printers and printer interface requirements. 3.5 Adding Options If you have available Q-bus slots, you may be able to add modules to your system.
Appendix A Related Documentation Document Order Number Hardware Documentation KA660 CPU System Maintenance EK–398AA–MM KA660 CPU Module Technical Manual EK–KA660–TM RF31/RF72 Integrated Storage Element User’s Guide EK–RF72D–UG TSV05 Tape Transport System User’s Guide EK–TSV05–UG Software Documentation Overview of VMS Documentation AA–LA95A–TE VMS VAXcluster Manual AA–LA27A–TE VMS Networking Manual AA–LA48A–TE Guide to DECnet–VAX Networking AA–LA47A–TE VMS Installation and Operations AA–L
Appendix B Programming Parameters for DSSI Devices This appendix describes the console mode procedures for setting and examining parameters for DSSI devices. NOTE: Before you reprogram DSSI devices, you should have a good understanding of DSSI architecture and VAXcluster software operation. If you do not have that understanding, you should read the VMS manuals listed in Appendix A or call your Digital service representative.
NOTE: Each of the above parameters, with the exception of the Bus Node ID, are programmed and examined using the console-based Diagnostic and Utility Program (DUP) driver utility. The Bus Node ID is physically determined by the numbered bus node ID plug that inserts into the device’s front panel. A brief description of each parameter follows: The Bus Node ID parameter is provided by the bus node ID plug on the device’s front panel. Each DSSI bus can support up to eight nodes, 0–7.
The SYSTEMID parameter provides a number that uniquely identifies the device to the operating system. This parameter may need to be modified only when replacing a device. Only Customer Services representatives and qualified self-maintenance customers can remove devices. B.2 How VMS Uses the DSSI Device Parameters This section describes how the operating system uses the parameters to form unique identifiers for each device.
Figure B–1: VMS Operating System Requires Unique Unit Numbers for DSSI Devices Allocation Class=0 Nonzero Allocation Class (Example: ALLCLASS=1) TFDR1$MIA0 $1$MIA0 R7CZZC$DIA1 $1$DIA1 R7ALUC$DIA2 $1$DIA2 R7EB3C$DIA3 $1$DIA3 R7IDFC$DIA0 $1$DIA0 R7IBZC$DIA1 R7IKJC$DIA2 * Duplicate 1 * Duplicate 2 $1$DIA1 $1$DIA2 * Nonzero allocation class examples with an asterisk indicate duplicate device names. For one of the DSSI busses, the unit numbers need to be reprogrammed to avoid this error.
uppercase or lowercase letters. Unless otherwise instructed, enter each command, then press Return. Enter console mode as follows: a. Set the Break Enable/Disable switch on the CPU cover panel to the enable position (up, dot inside the circle). b. Set the Power switch for each unit (both hosts for a dual-host system, and any expanders for expanded systems) to on (1). Wait for the system to display the console prompt (>>>). 2.
Example B–1: SHOW DSSI Display (Embedded DSSI) >>>SHOW DSSI DSSI Node 0 (TFDR1) -MIA0 (TF85) DSSI Node 1 (R7ALUC) -DIA1 (RF31) DSSI Node 2 (R7EB3C) -DIA2 (RF31) DSSI Node 3 (R7EB22) -DIA3 (RF31) DSSI Node 7 (*) >>> For KFQSA-based DSSI, the firmware displays the following: • The first line contains the UQSSP disk controller number and device node name. • The second line contains the device name and unit number followed by the device type in parentheses.
Example B–2 shows a sample KFQSA-based DSSI bus. Example B–2: SHOW UQSSP Display (KFQSA-Based DSSI) >>>SHOW UQSSP UQSSP Disk Controller -DUA0 (RF31) UQSSP Disk Controller -DUB1 (RF31) UQSSP Disk Controller -DUC2 (RF31) UQSSP Disk Controller -DUD3 (RF31) UQSSP Tape Controller -MUA0 (TK70) 0 (772150) 1 (760334) 2 (760340) 3 (760322) 0 (774500) For the examples in this appendix, each device will be assigned an allocation class of 2, and the system disk will be given a new node name.
In Example B–3, SET HOST/DUP/DSSI 0 PARAMS is entered to start the DUP server for the ISE at node 0 of the embedded DSSI bus. In Example B–4, SET HOST/DUP/UQSSP/DISK 0 PARAMS is entered to start the DUP server for the ISE at controller 0 of a KFQSA-based DSSI bus. Example B–3: Starting the DUP Driver Utility (Embedded DSSI) >>>SET HOST/DUP/DSSI 0 PARAMS Starting DUP server...
Example B–5 shows the steps for examining and changing the allocation class for a specified device. In the example, the allocation class is changed from an allocation class of 0 to an allocation class of 2.
Example B–6: Setting a Unit Number for a Specified Device PARAMS>SHOW UNITNUM Parameter Current --------- ---------------UNITNUM 0 Default ---------------0 Type -------Word Radix ----Dec U Parameter Current --------- ---------------UNITNUM 10 Default ---------------0 Type -------Word Radix ----Dec U PARAMS>SHOW FORCEUNI Parameter Current --------- ---------------FORCEUNI 0 Default ---------------1 Type -------Boolean Radix ----0/1 U PARAMS>SET UNITNUM 10 PARAMS>SET FORCEUNI 0 PARAMS>SHOW UNIT
To H Ha C O Lo nd los Inse and pe Wa it ad le n le e r th th t Ta Lig is is pe ht Attach Unit Number Label 10 Un lo 85 ad TF Attach Unit Number Label To Re Han Op P W Un ait res d e m lo s ov le n t ad his e Lig But Ta to ht pe n te d pe in Us Us e e Cle Ta anin pe g O pe Ha rat nd e le W rit Pr e ot ec Ta Figure B–2: Attaching a Unit Number Label to the Device Front Panel ISE 10 0 TF85 MLO-006579 Programming Parameters for DSSI Devices B–11
B.3.4 Setting Node Name After entering the DUP driver utility for a specified device, you can examine and set the node name for the device as follows: 1. At the PARAMS> prompt, enter SHOW NODENAME to check the node name of the ISE to which you are currently connected. 2. Enter SET NODENAME SYSDSK (or enter the desired alphanumeric node name of up to eight characters). 3. Enter SHOW NODENAME to verify the new node name.
Example B–8 shows the steps for changing the system ID of a specified device from the factory-supplied system ID to 1402193310841 (the system ID for the replacement device is programmed to match that of the original).
Example B–9: Exiting the DUP Driver Utility for a Specified Device PARAMS>WRITE Changes require controller initialization, ok? [Y/(N)] Y Stopping DUP server... >>> NOTE: You must repeat the procedures in this chapter for each device for which you want to change parameters. Example B–10 shows the embedded DSSI busses after the unit numbers for the devices on bus 0 have been changed from 0, 1, 2, and 3 to 10, 11, 12, and 13. Note that the device names are now MIA10, DIA11, DIA12, and DIA13.
Example B–11: SHOW UQSSP Display (KFQSA-Based DSSI) >>>SHOW UQSSP UQSSP Disk Controller -DUA20 (RF31) UQSSP Disk Controller -DUB21 (RF31) UQSSP Disk Controller -DUC22 (RF31) UQSSP Disk Controller -DUD23 (RF31) UQSSP Tape Controller -MUA0 (TK70) 0 (772150) 1 (760334) 2 (760340) 3 (760322) 0 (774500) Programming Parameters for DSSI Devices B–15
Appendix C Backup Procedures This appendix describes the following procedures: • Installing and booting standalone BACKUP on the system disk • Installing and booting standalone BACKUP on a TK50 tape cartridge • Backing up and restoring the system disk C.1 Overview of Standalone BACKUP The Backup utility lets you create and restore backup copies of files, directories, and user disks.
C.1.1 Installing Standalone BACKUP on the System Disk You can install standalone BACKUP in any available root directory on the system disk from [SYS1] to [SYSE]. However, Digital has established [SYSE] as the standard directory for standalone BACKUP. To install standalone BACKUP in [SYSE] on the system disk, use the following procedure: 1. Log in to the SYSTEM account. 2. Enter the following command: $ @SYS$UPDATE:STABACKIT SYS$SYSDEVICE: Return The procedure places the files in the directories [SYSE.
>>>B/E0000000 DIA0 Return 4. Standalone BACKUP displays a message similar to the following: VAX/VMS Version V5.4-n Major version id = n Minor version id = n 5. A few minutes later the procedure asks for the date and the time. Enter the date and time, using the 24-hour clock format; for example: PLEASE ENTER DATE AND TIME (DD-MMM-YYYY HH:MM) 19-APR-1991 13:00 Return 6. The system displays a list of the local devices on your system; for example: Available device MUA0: Available device DIA0: . . .
1. Obtain a blank tape cartridge. Write the name on the paper label. For example, you would use the name S/A BKUP V5.4–n TK50 to build a Version 5.4–n kit. Insert the label into the label slot. 2. Write-enable the tape cartridge. 3. Insert the tape cartridge labeled S/A BKUP V5.4–n TK50 in the tape cartridge drive. 4. Log in to the SYSTEM account. 5. Enter the following command: $ @SYS$UPDATE:STABACKIT Return 6. The system asks for the name of the target device.
12. Write-protect the tape cartridge and store it in a safe place. C.1.4 Booting Standalone BACKUP from a Tape Cartridge If the system disk containing standalone BACKUP should become unusable, you can boot standalone BACKUP from a tape cartridge. Booting standalone BACKUP from a tape cartridge takes approximately 20 minutes. You need a tape cartridge that contains standalone BACKUP (either the distribution tape cartridge or one that you created).
Available device MUA0: Available device DIA0: . . . device type TK70 device type RF31 8. When standalone BACKUP finishes booting, it displays an identification message followed by the dollar-sign prompt ($): %BACKUP-I-IDENT, stand-alone BACKUP V5.4--n; the date is 19-APR-1991 13:00:00.00 $ 9. Remove the tape cartridge containing standalone BACKUP from the tape cartridge drive. To back up the system disk, see Section C.2. To restore the system disk, see Section C.3. C.
Table C–1: Standalone BACKUP Qualifiers Qualifier Function /IMAGE Allows you to create a functionally equivalent copy of the entire system disk /PHYSICAL Copies, saves, restores, or compares the entire system disk in terms of logical blocks, ignoring any file structure For a complete description of the Backup utility and its qualifiers, see the VMS Backup Utility Manual. To back up the system disk, use the following procedure: 1.
• volume_label is the volume label of the tape cartridge in the tape drive. If the tape has been initialized already, use the same volume label that was assigned by the INITIALIZE command. If the tape has not been initialized, you can assign a volume label at this time. The volume label cannot have more than six characters. The following example uses the BACKUP command to make a backup disk.
e. When you are ready to continue, enter Y (for Yes) and press Return. The procedure displays the following message: %BACKUP-I-STARTVERIFY, starting verification pass Each time the procedure displays a mount request, follow steps a through e. 8. When the procedure is finished, the system displays the following message: %BACKUP-I-PROCDONE, operation completed. Processing finished at 19-APR-1991 15:00:00.
2. Boot standalone BACKUP as described in Section C.1.2 or Section C.1.4. 3. If you have a backup tape cartridge, make sure it is write protected. Insert it in the drive. 4. Enter the BACKUP command in one of the following formats: $ BACKUP/IMAGE/VERIFY source_drive: target_drive: Return $ BACKUP/IMAGE/VERIFY source_drive:- Return -$ saveset.BCK/SAV/REWIND target_drive: Return where: • source_drive is the location of the files that you want to restore.
7. When the procedure is finished, the system displays the following message: %BACKUP-I-PROCDONE, operation completed. Processing finished at 19-APR-1991 15:00:00.00 If you do not want to perform another standalone BACKUP operation, use the console to halt the system. If you do not want to perform another standalone BACKUP operation, ensure the standalone application volume is online and ready. Enter "YES" to continue: 8. Press the Halt button. 9. Reboot the system.
Appendix D Removing Unwanted VMS Files D.1 Using VMSTAILOR Read this appendix if you want to remove the VMS operating system and DECwindows files that you do not need from the system disk. For example, if you are not running DECnet–VAX, you do not need the network support files. You can remove unwanted files with the VMSTAILOR program. Enter the following command to log in to the SYSTEM account: $ RUN SYS$UPDATE:VMSTAILOR Return The VMSTAILOR program asks you if you want to tailor files ON or OFF.
For example, suppose you do not need the VMS Version 5.0 MAIL utility and you run VMSTAILOR to remove those files. Later on, if you decide you want to use mail, you can run VMSTAILOR to return the MAIL files to the system disk. You then apply any VMS upgrade or update that has occurred since Version 5.0 that affected the MAIL utility.
Glossary Allocation class The allocation class is used by the VMS operating system to derive a common lock resource name for multiple access paths to the same device. Application program A program designed to meet specific user needs, such as a program that monitors a manufacturing process. Backplane 1. The connector block that printed circuit boards plug into. 2. A printed circuit board containing the bus.
Bootable medium A fixed disk or magnetic tape containing software (such as an operating system) that the bootstrap program can load into the system memory. Boot node The management center for the cluster and its major resource provider. Bootstrap A program that you start when you turn on the system. The bootstrap loads software contained on a fixed disk or magnetic tape cartridge into memory. The system then stops executing the bootstrap and starts executing the software in memory.
Computer system A combination of computer hardware, software, and external devices that performs specific operations or tasks. Console terminal The terminal you use when installing software and running diagnostic programs. Controller A component that regulates the operation of one or more peripheral devices. Controllers are often called interface units. CPU See Central processing unit. DAT Digital audio tape. Used in digital data storage recording technology.
Default A value or setting that in most cases is normal or expected. Device The general name for any entity connected to a system that is capable of receiving, storing, or transmitting data. Device name The name by which a device or controller is identified within a system. You use the device name to refer to that device when communicating with the system. Diagnostic program A program that detects and identifies abnormal hardware operation.
Firmware Software instructions stored in a fixed form, usually in read-only memory (ROM). In a VAX 4000 system, the power-up self-tests and bootstrap program are firmware. Formatted data Data laid out in a particular pattern to conform to a predetermined structure. The structure is dictated by the system software. Hardware The physical components—mechanical and electrical—that make up a computer system. Compare Software.
Kbyte 1024 bytes. LED Light-emitting diode. An LED on the CPU cover panel displays a hexadecimal countdown during the power-up sequence. Load 1. To move software, usually from a peripheral device, into memory. 2. To place a disk in a disk drive or a tape in a tape drive. Longword A group of 32 bits, equal to two words or four bytes. Magnetic tape A long strip of plastic coated with magnetic oxide, used for storing data. Often called magtape. The tape contained in a tape cartridge.
Off line Pertaining to equipment, devices, and events that are not under direct control of the computer system. Operating system A collection of programs that controls the overall operation of a computer and performs such tasks as: • Assigning places in memory to programs and data • Processing requests, scheduling jobs • Controlling the operation of input and output devices Output device A device by means of which data can be extracted from a computer system; for example, a printer.
Quorum disk A quorum disk acts as a virtual node in a system using the quorum scheme. See the VMS VAXcluster Manual for further information on quorum disks and the quorum scheme. Read-only memory (ROM) A memory that does not allow modification of its contents. The computer can use data in a ROM but cannot change it. Reboot To restart a computer system. system. Pressing the Reset button reboots the Record A set of related data that a program can treat as a unit. A file consists of a number of records.
Storage medium Any device capable of recording information; for example, a tape cartridge. Store To enter data into a storage device, such as a disk, or into memory. System A combination of computer hardware and software and external devices that performs specific processing operations. System disk The disk or ISE that holds VMS factory-installed software. System management Tasks performed by the operating system to control the overall operation of the computer system.
Index A Air circulation, 1–18 ALLCLASS, B–2 setting, B–8 Autobooting the system, 2–6 B Backing up system disk using standalone BACKUP, C–7 Backup reasons for, C–6 system disk, C–6 BACKUP commands backing up, C–7 restoring the system disk, C–10 Base system components function, 1–19 BOOT command standalone BACKUP on tape cartridge, C–5 standalone BACKUP on the system disk, C–2 uses, 2–13 Booting from console mode, 2–12 Booting the system autobooting, 2–6 from console mode, 2–12 Break Enable/Disable switch, 1
CXY08 (Cont.) communications controller, 1–24 Halting the system (Cont.
Mass storage shelf (Cont.
Standalone BACKUP (Cont.
W Write-enabling a storage element, 3–3 Write-protecting a storage element, 3–3 a TF85 tape cartridge, 3–9 a TK70 tape cartridge, 3–21 Write-protect switch on a TF85 tape cartridge, 3–10 on a TK50/70 tape cartridge, 3–22 Index–5
