Sun Microsystems 9740 Drives

95693 Revision P 4-1

4

Drives

This chapter contains an overview about the controller transport units (CTUs)

and tape drives for the 9740 Library Storage Module (LSM).

Note: See Appendix A for information about the cartridge tapes.

CTUs mount in cartridge drives that attach to the rear of the LSM. Each cartridge

drive can contain:

• Two or four 9490 (TimberLine) CTUs

• One to four SD-3 (RedWood) CTUs

Tape drives mount inside the 9741 or 9741E Drive Cabinets that attach to the

rear of the LSM. These drive cabinets can contain:

• One to ten Digital Linear Tape (DLT) drives

• One to ten T9840 Tape Drives

• One to ten T9940 Tape Drives

• A combination of DLT, T9840, or T9940 drives

Note: Only two of the three drive types that can be installed in a 9741/9741E

Drive Cabinet are allowed to be mixed in the same cabinet.

■Controller Transport Units

Controller transport units (CTUs) are independent subassemblies within the cartridge

drive. Each CTU consists of a separate controller and transport and provides a 1-by-1

architecture. Because of this 1-by-1 architecture:

• Operation of one CTU does not effect the operations of any other CTUs in

the cartridge subsystem.

• Maintenance on a CTU does not disrupt operations of any other CTUs in the

cartridge drive or cartridge subsystem.

The controller contains all the circuit cards required for operation, such as: the

interface card, read and write cards, and microprocessors.

The transport contains the electrical, mechanical, and pneumatic components

required for tape motion, read and write operations, loading and unloading of

the cartridge tape.

There are two types of CTUs that attach to the LSM: 9490 and SD-3.

Contents

Main Page Page ii Revision P 95693 Summary of Changes Page Contents Page Page Figures Tab le s Page Preface Page Suns External Web Site Customer Resource Center Partne rs Site Hardcopy Publications Page Notices Page 95693 Revision P xvii The following is the Internal Code License Agreement from Sun StorageTek: xviii Revision P 95693 General Information Robot Page Cartridge Access Port Storage Cells Cartridge Exchange Mechanism Page Page Controls and Indicators Tape Drives and Cabinets Controller Transport Units Page Figure 2-3. Operator Panel Function Keys, Indicators, and Displays (C62014) 95693 Revision P 2-5 Setting the SCSI Address Figure 2-4. Symbol Definitions for Menu Block Diagram (C62015) Symbol Definitions for Menu Block Diagrams How Used.... Setting the SCSI Address 2-6 Revision P 95693 Figure 2-5. Setting the SCSI Address (C62016) Operating the LSM Loading Cartridges through the CAP Page Ejecting Cartridges through the CAP SCSI Interface AUTO CLEAN Feature Cleaning Drives in the LSM 3-6 Revision P 95693 Setting the Cleaning Cartridge Usage Count Q Replacing Cleaning Cartridges Serial Interface Setting the Cleaning Cartridge Usage Count Replacing Cleaning Cartridges Unlocking the CAP and Removing Non-cleaning Cartridges Replacing Expired Cleaning Cartridges Opening the LSM Front Doors Figure 3-3. Opening Front Doors (C62021) Moving the Robot Raising and Lowering the Z Carriage Rotating the Z Column Locating a Cartridge in the Storage Cells 9740 with Expansion Door 95693 Revision P 3-15 Figure 3-7. Locating CartridgesPanels, Cells, Rows, Cartridge Drive (C62013) 3-16 Revision P 95693 Figure 3-8. Locating CartridgesPanels, Cells, Rows, Drive Cabinet (C62377) 95693 Revision P 3-17 Figure 3-9. Locating CartridgesPanels, Cells, Rows, CEM (C62524) Page Mounting and Dismounting Cartridge Tapes Mounting a Cartridge into a 9490 or SD-3 CTU Dismounting a Cartridge from a 9490 or SD-3 CTU 95693 Revision P 3-21 Mounting a Cartridge into a DLT Drive Page Dismounting a Cartridge from a DLT Drive Mounting a Cartridge into a T9840 Drive Dismounting a Cartridge from a T9840 Drive Mounting a Cartridge into a T9940 Drive Dismounting a Cartridge from a T9940 Drive Removing a Cartridge from the Hand Standard Door Procedure Expansion Door Procedure Returning the LSM Online Page Drives 9490 SD-3 Power Switch Operator Panel Page Digital Linear Tape Drives T9840 and T9940 Tape Drives 9741/9741E Drive Cabinet 4-6 Revision P 95693 Figure 4-4 is an example of the operator panel: Figure 4-4. T9840/T9940 Operator Panel Service Page A Cartridge Tape Information Page 95693 Revision P A-3 Inspecting a Cartridge Figure A-2. Inspecting an SD-3 Helical Scan Cartridge Figure A-3. Inspecting a DLT Cartridge Inspecting a Cartridge A-4 Revision P 95693 Figure A-4. Inspecting a T9840 Cartridge (C62715) FRONT VIEW REAR VIEW REAR VIEW Figure A-5. Inspecting a T9940 Cartridge (C62727) Page Page Non-DLT Cartridges Figure A-6. 3480 Cartridge Label Locations (C62031) Figure A-7. ETape Cartridge Label Locations (C62528) 95693 Revision P A-9 Applying Labels Figure A-8. EETape Cartridge Label Locations (C62526) Figure A-9. Helical Scan Cartridge Label Locations (C62032) Applying Labels A-10 Revision P 95693 Figure A-10. T9840 Cartridge Label Locations (C62444) Figure A-11. T9940 Cartridge Label Location (C62731) DLT Cartridges 9490 Write-Protect Switch 95693 Revision P A-13 Setting the Write-Protect Switch Figure A-14. Setting the ETape Write-Protect Selector (C62529) Figure A-15. Setting the EETape Write-Protect Selector (C62523) SD-3 Write-Protect Switch DLT Write-Protect Switch T9840 Write-Protect Switch T9940 Write-Protect Switch Page Page Page Glossary Numeric A C D I O L M R S T V Z Page Index Numerics A C D E F G H M N O P R U V W Z Page SUN United States and other countries.