Exabyte VXA-320 Tape Drive Product Manual
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Product Names Are Trademarks Or Registered Trademarks of Their Respective Owners
COPYRIGHT Copyright 2011 by Tandberg Data. All rights reserved. This item and the information contained herein are the property of Tandberg Data. No part of this document may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual, or otherwise, without the express written permission of Tandberg Data. DISCLAIMER Tandberg Data makes no representation or warranties with respect to the contents of this document and specifically disclaims any implied warranties of merchantability or fitness for any particular purpose. Further, Tandberg Data reserves the right to revise this publication without obligation of Tandberg Data to notify any person or organization of such revision or changes. TRADEMARK Tandberg Data StorageLibrary, StorageLoader, SecureService, DPS1000 Series, DPS NOTICES 2000, VXA, SLR, RDX QuikStor, RDX QuikStation, AccuVault, and AccuGuard are trademarks of Tandberg Data. RDX is a registered trademark of Tandberg Data S.a.r.l. All other product names are trademarks or registered trademarks of their respective owners. PART NUMBER 1019786 Revision B REVISION HISTORY Revision Date Description A May 2011 Initial release. B October 2011 Version 2.0 updates Note: The most current information about this product is available at Tandberg Data’s web site (www.tandbergdata.com). PRODUCT MANUAL 1019786 II PRODUCT The RDX QuikStation by Tandberg Data Corporation is warranted to be free from WARRANTY defects in materials, parts, and workmanship and will conform to the current product CAUTION specification upon delivery. For the specific details of your warranty, refer to your sales contract or see the Tandberg Data web site (www.tandbergdata.com). -
16-Channel DAS with 16-Bit, Bipolar Input, Dual Simultaneous Sampling
16-Channel DAS with 16-Bit, Bipolar Input, Dual Simultaneous Sampling ADC Data Sheet AD7616 FEATURES APPLICATIONS 16-channel, dual, simultaneously sampled inputs Power line monitoring Independently selectable channel input ranges Protective relays True bipolar: ±10 V, ±5 V, ±2.5 V Multiphase motor control Single 5 V analog supply and 2.3 V to 3.6 V VDRIVE supply Instrumentation and control systems Fully integrated data acquisition solution Data acquisition systems (DASs) Analog input clamp protection GENERAL DESCRIPTION Input buffer with 1 MΩ analog input impedance First-order antialiasing analog filter The AD7616 is a 16-bit, DAS that supports dual simultaneous On-chip accurate reference and reference buffer sampling of 16 channels. The AD7616 operates from a single 5 V Dual 16-bit successive approximation register (SAR) ADC supply and can accommodate ±10 V, ±5 V, and ±2.5 V true bipolar Throughput rate: 2 × 1 MSPS input signals while sampling at throughput rates up to 1 MSPS Oversampling capability with digital filter per channel pair with 90.5 dB SNR. Higher SNR performance can Flexible sequencer with burst mode be achieved with the on-chip oversampling mode (92 dB for an Flexible parallel/serial interface oversampling ratio (OSR) of 2). SPI/QSPI/MICROWIRE/DSP compatible The input clamp protection circuitry can tolerate voltages up to Optional cyclic redundancy check (CRC) error checking ±21 V. T h e AD7616 has 1 MΩ analog input impedance, regardless Hardware/software configuration of sampling frequency. The single-supply operation, on-chip Performance filtering, and high input impedance eliminate the need for 92 dB SNR at 500 kSPS (2× oversampling) driver op amps and external bipolar supplies. -
The CLASP Application Security Process
The CLASP Application Security Process Secure Software, Inc. Copyright (c) 2005, Secure Software, Inc. The CLASP Application Security Process The CLASP Application Security Process TABLE OF CONTENTS CHAPTER 1 Introduction 1 CLASP Status 4 An Activity-Centric Approach 4 The CLASP Implementation Guide 5 The Root-Cause Database 6 Supporting Material 7 CHAPTER 2 Implementation Guide 9 The CLASP Activities 11 Institute security awareness program 11 Monitor security metrics 12 Specify operational environment 13 Identify global security policy 14 Identify resources and trust boundaries 15 Identify user roles and resource capabilities 16 Document security-relevant requirements 17 Detail misuse cases 18 Identify attack surface 19 Apply security principles to design 20 Research and assess security posture of technology solutions 21 Annotate class designs with security properties 22 Specify database security configuration 23 Perform security analysis of system requirements and design (threat modeling) 24 Integrate security analysis into source management process 25 Implement interface contracts 26 Implement and elaborate resource policies and security technologies 27 Address reported security issues 28 Perform source-level security review 29 Identify, implement and perform security tests 30 The CLASP Application Security Process i Verify security attributes of resources 31 Perform code signing 32 Build operational security guide 33 Manage security issue disclosure process 34 Developing a Process Engineering Plan 35 Business objectives 35 Process -
Tandberg Magnum 1X7 LTO
DATASHEET Tandberg Magnum 1x7 LTO Rich feature set. Leading price point. Superior engineering. For IT managers and network administrators needing Key Benefits automated tape backup, the Tandberg Magnum 1x7 LTO Tape Autoloader is an ideal solution. Plug and Play Includes remote management, bar code reader, rackmount kit The Magnum 1x7 offers affordable automation, remote management and Backup Exec QuickStart software so you are up and running and a bar code reader for easy management—all contained in a slim within minutes 2U rack size. And with transfer rates of up to 864GB* per hour and a capacity of up to 11.2TB*, the 1x7 allows for better total cost of Blazing Transfer Rates ownership and return on investment than competitive products. Delivers up to 11.2TB* of capacity at a transfer rate of up to 864GB* per hour An intuitive, user-friendly LCD interface guides you through the configuration, status, diagnostic and help functions and we include seven cartridge cells, which provide a full week of unattended Reliability backup, along with Backup Exec™ QuickStart software so you have Tandberg Data’s award-wining patented robotics is built on its 25-year legacy of superior engineering, quality and reliability immediate backup and restoration of your data. To assist you in meeting the numerous data archiving regulations, Minimize Downtime the Magnum 1x7 leverages Write Once, Read Many (WORM) One-year warranty of On-Site Service included technology, which allows you to store data in a non-erasable, non-rewritable format. www.tandbergdata.com/us The Magnum 1x7 can be easily upgraded to a larger capacity LTO drive without removing the autoloader from its rack. -
IS 13737 (1993): Isoinformation Technology
इंटरनेट मानक Disclosure to Promote the Right To Information Whereas the Parliament of India has set out to provide a practical regime of right to information for citizens to secure access to information under the control of public authorities, in order to promote transparency and accountability in the working of every public authority, and whereas the attached publication of the Bureau of Indian Standards is of particular interest to the public, particularly disadvantaged communities and those engaged in the pursuit of education and knowledge, the attached public safety standard is made available to promote the timely dissemination of this information in an accurate manner to the public. “जान का अधकार, जी का अधकार” “परा को छोड न 5 तरफ” Mazdoor Kisan Shakti Sangathan Jawaharlal Nehru “The Right to Information, The Right to Live” “Step Out From the Old to the New” IS 13737 (1993): ISOInformation Technology - 130 mm Rewritable optical disk cartridges for information interchange [LITD 16: Computer Hardware, Peripherals and Identification Cards] “ान $ एक न भारत का नमण” Satyanarayan Gangaram Pitroda “Invent a New India Using Knowledge” “ान एक ऐसा खजाना > जो कभी चराया नह जा सकताह ै”ै Bhartṛhari—Nītiśatakam “Knowledge is such a treasure which cannot be stolen” IS 13737 : 1993 ISO/IEC 10089 : 1991 CONTENTS Page NationalForeword..........,..........................................‘.““““’ . (vii) 1 Scope 1 2 Conformance 1 3 Normative references 1 4 Conventions and notations 1 5 List of acronyms 2 6 Definitions 2 2 6. I case 2 6.2 Clamping Zone 6.3 -
1. Background This Paper Is About a Method for Recovering Data from Floppy Disks That Are Failing Due to “Weak Bits”
A Method for Recovering Data From Failing Floppy Disks with a Practical Example Dr. Frederick B. Cohen, Ph.D. and Charles M. Preston Fred Cohen & Associates and California Sciences Institute Abstract: As floppy disks and other similar media age, they have a tendency to lose data because of the reduction in retention of electromagnetic fields over time associated with various environmental degradation factors. In attempting to read these disks, the coding techniques used to write them can be exploited along with the proposed fault mechanisms to demonstrate that repetitions of read attempts under proper conditions yield valid data subject to specific error modes. In many cases those errors can be partially or completely reversed by analysis of read results. A practical example involving a case of substantial legal value is used as an example of the application of these methods. Keywords: weak bits, floppy disks, digital forensics, coding, field density loss, the birthday problem, error inversion 1. Background This paper is about a method for recovering data from floppy disks that are failing due to “weak bits”. It describes a repetitive read technique that has successfully recovered data from failing floppy disks in forensic cases and describes analysis of the results of such repetitive reads in terms of yielding forensically sound data values. These techniques are not new or particularly unique; however, they are not widely published and analysis necessary to support their use in legal matters has not been found elsewhere. The particular matter used as an example in this analysis involved a floppy disk that was more than 15 years old and that contained the only copy of a binary assembled version of a software program that was subject to intellectual property claims of sufficient value to warrant recovery beyond the means normally used by commercial recovery firms. -
Tandberg Magnum 1X7 LTO
DATASHEET Tandberg Magnum 1x7 LTO Rich feature set. Leading price point. Superior engineering. For IT managers and network administrators needing Key Benefits automated tape backup, the Tandberg Magnum 1x7 LTO Tape Autoloader is an ideal solution. Plug and Play Includes remote management, bar code reader, rackmount kit The Magnum 1x7 offers affordable automation, remote management and Backup Exec QuickStart software so you are up and running and a bar code reader for easy management—all contained in a slim within minutes 2U rack size. And with transfer rates of up to 864GB* per hour and a capacity of up to 11.2TB*, the 1x7 allows for better total cost of Blazing Transfer Rates ownership and return on investment than competitive products. Delivers up to 11.2TB* of capacity at a transfer rate of up to 864GB* per hour An intuitive, user-friendly LCD interface guides you through the configuration, status, diagnostic and help functions and we include seven cartridge cells, which provide a full week of unattended Reliability backup, along with Backup Exec™ QuickStart software so you have Tandberg Data’s award-wining patented robotics is built on its 25-year legacy of superior engineering, quality and reliability immediate backup and restoration of your data. To assist you in meeting the numerous data archiving regulations, Minimize Downtime the Magnum 1x7 leverages Write Once, Read Many (WORM) One-year warranty of On-Site Service included technology, which allows you to store data in a non-erasable, non-rewritable format. www.tandbergdata.com/us The Magnum 1x7 can be easily upgraded to a larger capacity LTO drive without removing the autoloader from its rack. -
LTO SAS, SCSI and Fibre Channel Tape Drives
Copyright © Copyright 2010 Tandberg Data Corporation. All rights reserved. This item and the information contained herein are the property of Tandberg Data Corporation. No part of this document may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual, or otherwise, without the express written permission of Tandberg Data Corporation, 2108 55th Street, Boulder, Colorado 80301. DISCLAIMER: Tandberg Data Corporation makes no representation or warranties with respect to the contents of this document and specifically disclaims any implied warranties of merchantability or fitness for any particular purpose. Further, Tandberg Data Corporation reserves the right to revise this publication without obligation of Tandberg Data Corporation to notify any person or organization of such revision or changes. TRADEMARK NOTICES: Tandberg Data Corporation trademarks: Tandberg Data, Exabyte, the Exabyte Logo, EZ17, M2, SmartClean, VXA, and VXAtape are registered trademarks; MammothTape is a trademark; SupportSuite is a service mark. Other trademarks: Linear Tape-Open, LTO, the LTO Logo, Ultrium and the Ultrium Logo are trademarks of HP, IBM, and Quantum in the US and other countries. All other product names are trademarks or registered trademarks of their respective owners. Note: The most current information about this product is available at Tandberg Data’s web site (http:// www.tandbergdata.com). -
Floppy Disc Controller Instruction Manual
Part Number 2120-0067 OQ419 FLOPPY DISC CONTROLLER INSTRUCTION MANUAL March 1985 DISTRIBUTED LOGIC CORPORATION 1555 S. Sinclair Street P.O. Box 6270 ~R Anaheim, California 92806 I nmmI Telephone: (714) 937·5700 Telex: 6836051 Contents SECTION 1 - GENERAL INFORMATION 1.1 INTRODUCTION 1 1.2 GENERAL DESCRIPTION 2 1.3 COMPATIBILITY 2 1.4 LOGICAL TRACK FORMAT 3 1.4.1 Sector Header Field 3 1.4.2 Data Field 5 1.4.3 CRC - Cyclic Redundancy Check 5 1.5 RECORDING SCHEME 6 1.6 SPECIFICATIONS 6 SECTION 2 - INSTALLATION 2.1 CONTROLLER JUMPER CONFIGURATIONS 7 2.1.1 Device and Vector Address Selection 8 2.1.2 Device Interrupt Priority 9 2.1.3 Bootstrap 10 2.1.4 Wri te Precompensati on 10 2.1.5 Write Current Control 11 2.1.6 Drive Step Rate 11 2.2 DRIVE CONFIGURATIONS 11 2.3 CABLING 19 2.4 CONTROLLER INSTALLATION 21 2.5 INITIAL CHECKOUT 21 SECTION 3 - OPERATION 3.1 GENERAL INFORHATION 23 3.2 BOOTSTRAPPING 23 3.3 FORMATTING 24 3.4 FILL/WRITE OPERATION 25 3.5 READ/EMPTY OPERATION 27 3.6 OPERATION USING RT-ll 27 SECTION 4 - PROGRAMMING 4.1 GENERAL INFORMATION 29 4.2 COMMAND AND STATUS REGISTER - RXVCS (177170) 30 4.3 DATA BUFFER (177172) 31 4.3.1 Data Buffer Register (RXVDB) 32 4.3.2 Trace Address Register (RXVTA) 32 4.3.3 Sector Address Register (RXVSA) 32 4.3.4 Word Count Register (RXVWC) 32 4.3.5 Bus Address Register (RXVBA) 33 4.3.6 Error and Status Register (RXVES) 33 4.3.7 Bus Address Extension Register (RXVBAE) 35 i i ; 4.4 EXTENDED STATUS REGISTERS 35 4.5 COMMAND PROTOCOL 36 4.5.1 Fill Buffer (000) 36 4.5.2 Empty Buffer (001) 37 4.5.3 Write Buffer -
High Performance Table-Based Algorithm for Pipelined CRC Calculation
High Performance Table-Based Algorithm for Pipelined CRC Calculation Yan Sun and Min Sik Kim School of Electrical Engineering and Computer Science Washington State University Pullman, Washington 99164-2752, U.S.A. Email: fysun,[email protected] Abstract—In this paper, we present a fast cyclic redun- for message length detection of variable-length message dancy check (CRC) algorithm that performs CRC compu- communications [4], [5]. tation for an arbitrary length of message in parallel. For a Communication networks use protocols with ever in- given message with any length, the algorithm first chunks the message into blocks, each of which has a fixed size equal creasing demands on speed. The increasing performance to the degree of the generator polynomial. Then it computes needs can be fulfilled by using ASICs (Application Spe- CRC for the chunked blocks in parallel using lookup tables, cific Integrated Circuits) and this will probably also be and the results are combined together with XOR operations. the case in the future. Meeting the speed requirement In the traditional implementation, it is the feedback that is crucial because packets will be dropped if processing makes pipelining problematic. In the proposed algorithm, we solve this problem by taking advantage of CRC’s properties is not completed at wire speed. Recently, protocols for and pipelining the feedback loop. The short pipeline latency high throughput have emerged, such as IEEE 802.11n of our algorithm enables a faster clock frequency than WLAN and UWB (Ultra Wide Band), and new protocols previous approaches, and it also allows easy scaling of the with even higher throughput requirement are on the way. -
Magnum 224, Magnum 448, Storagelibrary T24, And
COPYRIGHT Copyright 2007 by Tandberg Data Corporation. All rights reserved. This item and the information contained herein are the property of Tandberg Data Corporation. No part of this document may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual, or otherwise, without the express written permission of Tandberg Data Corporation, 2108 55th Street, Boulder, Colorado 80301. DISCLAIMER Tandberg Data Corporation makes no representation or warranties with respect to the contents of this document and specifically disclaims any implied warranties of merchantability or fitness for any particular purpose. Further, Tandberg Data Corporation reserves the right to revise this publication without obligation of Tandberg Data Corporation to notify any person or organization of such revision or changes. TRADEMARK Tandberg Data Corporation trademarks: Tandberg Data, Exabyte, the Exabyte Logo, NOTICES EZ17, M2, SmartClean, VXA, and VXAtape are registered trademarks; ExaBotics and MammothTape are trademarks; SupportSuite is a service mark. Other trademarks: Linear Tape-Open, LTO, the LTO Logo, Ultrium and the Ultrium Logo are trademarks of HP, IBM, and Quantum in the US and other countries. All other product names are trademarks or registered trademarks of their respective owners. PART NUMBER 1014826 E REVISION HISTORY Revision Date Description A April 2006 Initial release. B July 2006 Add Magnum 448 and Fibre Channel information. C August 2006 Added Error Codes appendix D February 2007 Removed references to taking a “dump” over SCSI E June 2007 Added StorageLibrary T24 and StorageLoader 2U LTO, converted from Exabyte to Tandberg Data. -
A Method for Recovering Data from Failing Floppy Disk Drives
A Method for Recovering Data From Failing Floppy Disk Drives Dr. Frederick B. Cohen, Ph.D. and Charles Preston Background: This paper is about a method for recovering data from floppy disks that are failing due to weak bits. It describes a repetitive read technique that has successfully recovered data from failing floppies in forensic cases and describes other related techniques. None of these techniques are new or particularly unique, however, they are not widely published to the best of the authors knowledge and some of the related analysis may be helpful in making more definitive determinations in some cases. The nature of 'weak' bits and failure modes: Floppy disks tend to degrade in various ways over time and under various environmental conditions such as temperature, humidity, and so forth. In some cases this results in the presence of so-called “weak” bits on the media. Weak bits are bits that are sufficiently degraded in their electromagnetic field so as to yield voltages between the values for a '1' and a '0' when read by the read heads on most floppy disks. This is a result of reduced flux density in the electromagnetic media. In particular, the floppy disk coding used in most current disks is identified in: http://cma.zdnet.com/book/upgraderepair/ch14/ch14.htm as Modified Frequency Modulation (MFM) which uses timed flux density transitions to indicate bits. In particular, it uses a “No transition, Transition” (NT) sequence to indicate a “1”, a TN to indicate a '0' preceded by a '0', and an NN to indicate a '0' preceded by a '1'.