Tandberg Data VXA-320 (VXA-3) manual Scsi Message System, Message Hex Description

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SCSI COMMUNICATION INTERFACE

Table 6-1SCSI bus phases and information transfer phases

 

 

Bus Phase

Description

 

 

Transfer:

The Message phases help manage the physical path between the initiators and targets.

ƒMessage In/ ƒ In the Message In phase, the tape drive sends a message to the initiator. In the Message

Message Out

Out phase, the initiator sends a message to the tape drive.

ƒCommand ƒ In the Command Out phase, the initiator sends a command to the tape drive.

Out

Commands contain information about what actions the tape drive should perform.

ƒData In/ ƒ In the Data In phase, the tape drive transfers data to the initiator. In the Data Out

Data Out

phase, the initiator transfers data to the tape drive.

ƒStatus In ƒ In the Status In phase, the tape drive returns a status byte to the initiator. The status byte indicates the results of the command’s execution.

SCSI MESSAGE SYSTEM

The SCSI message system allows communication between a SCSI initiator and the VXA-320 tape drive for interface management. This message system or command set is separate from the SCSI command protocol used to control the operation of the tape drive. A message can be one byte or multiple bytes. Table 6-2describes the SCSI messages that the tape drive supports.

Table 6-2SCSI messages supported by the tape drive

Message

Hex

Description

Code

 

 

 

 

 

Task

00h

The tape drive informs the initiator that the execution of the command was

Complete

 

completed and that it sent a valid status byte to the initiator.

 

 

 

Extended

01h

Synchronous Data Transfer Request (01h) The tape drive supports

Messages

 

synchronous data transfer.

 

 

 

 

 

Wide Data Transfer Request (03h) The tape drive supports wide data transfer.

 

 

 

 

 

Parallel Protocol Request (04h) The tape drive supports negotiating a

 

 

synchronous data transfer agreement, a wide data transfer agreement, and setting

 

 

the protocol options between two SCSI devices.

 

 

 

Save Data

02h

The tape drive requests that the initiator copy the current data pointer for possible

Pointer

 

use by the Restore Pointers message during error recovery.

 

 

 

Restore

03h

The tape drive informs the initiator that it did not properly receive a block of data

Pointers

 

or the command descriptor block (CDB) and that the data needs to be transferred

 

 

again.

 

 

 

Disconnect

04h

The tape drive informs the initiator that it plans to disconnect from the SCSI bus

 

 

and that a reconnect will be required later.

 

 

 

Initiator

05h

The initiator informs the tape drive that an error occurred. The tape drive can retry

Detected

 

the operation.

Error

 

 

 

 

 

OCTOBER 2006

VXA-320 TAPE DRIVE

 

 

 

 

 

 

 

 

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Contents VXA-320 VXA-3 Tape Drive Product Manual433689-01 III To return equipment for service RMA Request To order supplies and accessoriesTo obtain general information To obtain technical supportFirst-time installation HOW to USE this ManualOperation, troubleshooting, maintenance, and service Specifications, standards, and termsStandards Publications VXA-320 PublicationsRelated Publications Conventions Used in this ManualContents Service and Maintenance Glossary Index 433689-01 Figures Xii 1LED states 1Service Notification error recovery procedures21Shipping carton weights and dimensions Xiv Data storage FeaturesTape Drive Models and Interfaces Front Panel Components ComponentsScsi ID Jumper Block Scsi model only Used to set the Scsi ID Back Panel Components Internal Tape Drive5External tape drive back-panel components Back Panel Components External Tape Drive6Top-panel label Scsi tape drive Tape Drive Labels433689-01 Unpacking the Tape Drive InstallationInstalling the Tape Drive Before You Begin Installing the Internal Scsi Tape DriveTape drive Set the Scsi ID and connect the Scsi cable2SCSI ID settings Pin 433689-01 Side mounting 5Screw mounting configurations internal model6External Scsi tape drive back-panel components Installing the External Scsi Tape DriveInstall the Tape Drive 7Terminating the Scsi bus external model Checking the Installation Application instructs you to do so Integrating the Tape Drive1Internal tape drive front-panel components OperationMonitoring the Leds Service NotificationBoot Block Modeg Format recoverye OffBroken tape Flashing Off Green Tape pathfSetting the WRITE-PROTECT Switch Using Vxatape CartridgesLoading a Cartridge Unloading a CartridgeStoring the Cartridges Cleaning the Tape DriveDetermining When to Clean the Tape Drive Using a Cleaning Cartridge Resetting the Tape DriveOther cleaning methods may void the tape drive’s warranty LED 2 flashes green and amberTape Drive will not Accept a Cartridge TroubleshootingResolving Problems LED 4 is Flashing Orange Tape Drive will not Eject a Cartridge Suggested Recovery Procedure Service Notification LED Code AppearsFailure to communicate with the tape drive Backup Application is Reporting AN ErrorFailure by the tape drive to write or read data Backup Application configuration issuesUpdating Firmware Capturing a Diagnostic LOG Troubleshooting with VxatoolGetting Started Important First Step Performing a WRITE/READ TestScsi BUS Information Gathering Troubleshooting Information for Technical SupportVXA-320 Tape Drive Information Operating System Information Backup Application InformationTape Drive Diagnostic Information 433689-01 Site atvprovides more information Service and MaintenanceReturning the Tape Drive for Service Upgrading Firmware Obtaining a Diagnostic ListingCommunication Interface Versus Command Protocol Communication Interface Command ProtocolScsi Communication Interface Scsi BUS PhasesMessage Hex Description Scsi Message SystemScsi Interface Requirements Terminator power Specification RequirementScsi Cable Requirements Internal Tape Drive+ATN Scsi Connector Requirements+ACK +MSGScsi Terminator Requirements Connector typeExternal Tape Drive Maximum length a Meters 39 feet bCommand SET Scsi Command ProtocolReceive Status byte Hex Description Status BytesSense Keys Sense key Hex DescriptionData cartridge. The write operation is not performed Drive during Command or Data Out phaseBlank tape during a read, space, or locate operation Aborted433689-01 Data Capacities SpecificationsData Transfer Rates Performance SpecificationsRead and Write Specifications Tape Speed and Access Time Reliability SpecificationsSpecification Internal Tape Drive External Tape Drive Size and WeightPin Assignment Power SpecificationsPower Connector Pin Assignments Power +5 Volts +12 Volts Power ConsumptionPower Consumption Power average DC VoltagesAcoustic Noise Power SupplyEnvironmental Conditions for the Tape Drive Environmental SpecificationsInternal Tape Drive Operating Temperature and Humidity Point Temperatures Humidity External Tape Drive Operating Temperature and Humidity Air Flow/Cooling Requirements Shock SpecificationsParticulate Contamination Limits Particle Size Number of ParticlesSpecification Vibration SpecificationsVibration applied during shipping in original packaging Swept sine applied during non-operationcand operatingdCarton Weight Dimensions Single Pack Packaging and Shipping SpecificationsShipping Cartons Multipack 10 Internal Tape DrivesTUV Product Service Safety and Regulatory CompliancePackaging Materials Underwriters LaboratoryCanadian Verification United States FCC Declaration of ConformityJapan European CommunityAustralia and NEW Zealand TaiwanGlossary 433689-01 Glossary 433689-01 Glossary 433689-01 FCC Index52 to 56 to Scsi ID 56 to Index Product Manual

VXA-320 (VXA-3) specifications

Tandberg Data VXA-320 (VXA-3) is a sophisticated backup solution designed for businesses seeking reliable data storage and backup capabilities. It is part of the renowned VXA series, heralded for its innovative approach to data archiving and its robust performance in diverse operating environments.

One of the standout features of the VXA-320 is its impressive data transfer rate, which reaches up to 36 GB per hour. This capability significantly enhances backup speed, making it a suitable choice for organizations with extensive data storage needs. The device supports a native capacity of 160 GB per cartridge, which can be expanded to 320 GB when data is compressed. This dual-layer cartridge system ensures that users can efficiently manage large volumes of data without constantly needing to interchange tapes.

The VXA-320 employs the unique VXA tape format, characterized by its advanced error correction and data integrity features. This format minimizes data loss risks and ensures reliable restoration of information. Additionally, the VXA-3 incorporates a one-inch data path, allowing it to handle higher track counts and thereby achieve better storage density. This design improves the efficiency of data retrieval and archiving processes.

Another significant aspect of the VXA-320 is its compatibility with a myriad of operating systems and backup applications, making it a versatile addition to various IT infrastructures. Businesses can integrate the VXA-3 into existing systems without the need for extensive reconfiguration. This flexibility enhances its appeal to organizations looking for a straightforward backup solution.

The device also includes an intelligent tape management system that tracks the status of backup jobs and the usage of tapes. This feature facilitates easier management of the backup process and ensures users remain informed about the condition of their storage media.

Tandberg Data offers extensive support documentation and tools that facilitate straightforward operation of the VXA-320. Combined with reliable performance and innovative storage technologies, the VXA-320 (VXA-3) stands out as a robust solution for data protection needs. Overall, it represents an effective investment for businesses seeking dependable data backup and archiving solutions.
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