Dell™ Vostro™ 400 Owner's Manual – Mini Tower
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Failure Prediction, Lead Time Estimation and Health Degree Assessment for Hard Disk Drives Using Voting Based Decision Trees
Computers, Materials & Continua CMC, vol.60, no.3, pp.913-946, 2019 Failure Prediction, Lead Time Estimation and Health Degree Assessment for Hard Disk Drives Using Voting Based Decision Trees Kamaljit Kaur 1, * and Kuljit Kaur2 Abstract: Hard Disk drives (HDDs) are an essential component of cloud computing and big data, responsible for storing humongous volumes of collected data. However, HDD failures pose a huge challenge to big data servers and cloud service providers. Every year, about 10% disk drives used in servers crash at least twice, lead to data loss, recovery cost and lower reliability. Recently, the researchers have used SMART parameters to develop various prediction techniques, however, these methods need to be improved for reliability and real-world usage due to the following factors: they lack the ability to consider the gradual change/deterioration of HDDs; they have failed to handle data unbalancing and biases problem; they don’t have adequate mechanisms for health status prediction of HDDs. This paper introduces a novel voting-based decision tree classifier to cater failure prediction, a balance splitting algorithm for the data unbalancing problem, an advanced procedure for lead time estimation and R-CNN based approach for health status estimation. Our system works robustly by considering a gradual change in SMART parameters. The system is rigorously tested on 3 datasets and it delivered benchmarks results as compared to the state of the art. Keywords: Hard disk drive, lead time, health status, N-splitting algorithm, machine learning, deep learning, data storage, unbalancing problem. 1 Introduction The 21st century is the era of big data, cloud computing, and distributed networks. -
Integrated Mirroring SAS User's Guide
Integrated Mirroring SAS User’s Guide Areas Covered Before Reading This Manual This section explains the notes for your safety and conventions used in this manual. Chapter 1 Overview This chapter provides an overview and precautions for the disk array and its features configured with this array controller. Chapter 2 Using the BIOS Utility This chapter explains the BIOS Utility setup procedure. BIOS Utility is a basic utility to set up and manage the array controller. Chapter 3 Updating the Device Drivers This chapter explains how to update the device drivers and how to apply a hotfix. Chapter 4 Overview and Installation of Global Array Manager (GAM) This chapter contains an overview of and product requirements for Global Array Manager (GAM), and describes how to install the program. Chapter 5 Using GAM This chapter explains how to manage the disk array with GAM. Chapter 6 Replacing a Hard Disk Drive This chapter explains maintenance related issues, such as hard disk drive replacement. Appendix This section explains the GAM error codes. 1 Before Reading This Manual Remarks ■ Symbols Symbols used in this manual have the following meanings: These sections explain prohibited actions and points to note when using this software. Make sure to read these sections. These sections explain information needed to operate the hardware and software properly. Make sure to read these sections. → This mark indicates reference pages or manuals. ■ Key Descriptions / Operations Keys are represented throughout this manual in the following manner: E.g.: [Ctrl] key, [Enter] key, [→] key, etc. The following indicate the pressing of several keys at once: E.g.: [Ctrl] + [F3] key, [Shift] + [↑] key, etc. -
ASHRAE TC9.9 Data Center Storage Equipment
© 2015, ASHRAE. All rights reserved. This publication may not be reproduced in whole or in part; may not be distributed in paper or digital form; and may not be posted in any form on the Internet without ASHRAE’s expressed written permission. Inquiries for use should be directed to [email protected]. ASHRAE TC9.9 Data Center Storage Equipment – Thermal Guidelines, Issues, and Best Practices Whitepaper prepared by ASHRAE Technical Committee (TC) 9.9 Mission Critical Facilities, Data Centers, Technology Spaces, and Electronic Equipment Table of Contents 1 INTRODUCTION.................................................................................................................4 1.1 PRIMARY FUNCTIONS OF INFORMATION STORAGE ..........................................5 1.2 TYPES OF STORAGE MEDIA AND STORAGE DEVICES ........................................6 1.3 DISK STORAGE ARRAYS...........................................................................................10 1.4 TAPE STORAGE ...........................................................................................................13 2 POWER DENSITY AND COOLING TRENDS .............................................................14 2.1 POWER DENSITY TRENDS ........................................................................................14 2.2 COMMON COOLING AIR FLOW CONFIGURATIONS ...........................................16 2.3 ENERGY SAVING RECOMMENDATIONS...............................................................21 3 ENVIRONMENTAL SPECIFICATIONS .......................................................................24 -
Dell Optiplex GX620 Systems User's Guide
Dell™ OptiPlex™ GX620 Systems User's Guide Mini Tower Computer Desktop Computer Small Form Factor Computer Ultra Small Form Factor Computer Back to Contents Page Advanced Features Dell™ OptiPlex™ GX620 User's Guide LegacySelect Technology Control Booting to a USB Device Manageability Clearing Forgotten Passwords Security Clearing CMOS Settings Password Protection Hyper-Threading System Setup Power Management LegacySelect Technology Control LegacySelect technology control offers legacy-full, legacy-reduced, or legacy-free solutions based on common platforms, hard-drive images, and help desk procedures. Control is provided to the administrator through system setup, Dell OpenManage™ IT Assistant, or Dell custom factory integration. LegacySelect allows administrators to electronically activate or deactivate connectors and media devices that include serial and USB connectors, a parallel connector, a floppy drive, PCI slots, and a PS/2 mouse. Connectors and media devices that are deactivated make resources available. You must restart the computer to effect the changes. Manageability Alert Standard Format ASF is a DMTF management standard that specifies "pre-operating system" or "operating system-absent" alerting techniques. The standard is designed to generate an alert on potential security and fault conditions when the operating system is in a sleep mode or the system is turned off. ASF is designed to supersede previous operating-system-absent alerting technologies. Your computer supports the following ASF version 1.03 and 2.0 alerts and remote capabilities: Alert Description Chassis: Chassis Intrusion – Physical Security Violation/Chassis The computer chassis with the chassis intrusion feature installed and enabled Intrusion – Physical Security Violation Event Cleared has been opened or the chassis intrusion alert has been cleared. -
PS1 and PSA Inverters TN0021: Connecting to Modem Or Direct Connect
15/10/2008 PS1 and PSA Inverters TN0021: Connecting to modem or direct connect This document describes the methods for configuring modems and cables for use with Remote Link software for PS1 and PSA inverters. Note that while PS1 are commonly displayed or referred to in this document, PSA inverters are handled similarly. To communicate with a modem, the inverter must be configured correctly using either; 1. Dial-up modem, over a phone line 2. Direct cable connection Remote Link is available at http://www.selectronic.com.au/remotelink. To configure an inverter for dial up modem connection: The PS1 or PSA inverter must be connected to a modem. Selectronic currently supplies and supports only the Netcomm AM5698. The modem must first be programmed with specific settings or it will fail to communicate. Programming can be done using the “Program a modem for PS1 use” utility, which comes with the Remote Link software. Attach the modem to be programmed to a COM port on your Windows Computer. Start the utility and select the correct COM port. The default settings are usually suitable for most modems. Click the Write button to program the modem. The utility will write all the settings required and save them in permanent storage. Once the function is complete, close the utility and disconnect the modem. Attach the modem directly to the inverter, using the special RJ45 lead. Turn on the PS1 inverter. Turn on the modem. Verify that the Terminal Ready light is illuminated immediately, and does not go out 2 seconds after power up. Correct connections at the computer’s modem If you are using a laptop which does not have a serial port, you will need a USB to serial adaptor, as displayed below. -
Latitude 3320 Service Manual
Latitude 3320 Service Manual Regulatory Model: P146G Regulatory Type: P146G001 April 2021 Rev. A00 Notes, cautions, and warnings NOTE: A NOTE indicates important information that helps you make better use of your product. CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the problem. WARNING: A WARNING indicates a potential for property damage, personal injury, or death. © 2021 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries. Other trademarks may be trademarks of their respective owners. Contents Chapter 1: Working inside your computer...................................................................................... 6 Safety instructions.............................................................................................................................................................. 6 Before working inside your computer.......................................................................................................................6 Entering Service Mode................................................................................................................................................. 7 Exiting Service Mode.................................................................................................................................................... 7 Safety precautions.........................................................................................................................................................7 -
Assessment of Current Health and Remaining Useful Life of Hard Disk Drives
Assessment of Current Health and Remaining Useful Life of Hard Disk Drives A Thesis Presented by Yogesh G. Bagul to The Department of Mechanical and Industrial Engineering in partial fulfillment of the requirements for the degree of Master of Science in Computer Systems Engineering Northeastern University Boston, Massachusetts USA January 2009 Northeastern University Graduate School of Engineering Thesis Title: Assessment of Current Health and Remaining Useful Life of Hard Disk Drives Author: Yogesh G. Bagul Department: Mechanical and Industrial Engineering Department Approved for Thesis Requirement of the Master of Science Degree ii © 2009 Yogesh G. Bagul iii ACKNOWLEDGEMENTS I would like to express my sincere gratitude to my thesis advisor, Dr. Ibrahim Zeid, for his guidance and support. I would also like to thank Dr. Sagar Kamarthi for his inspiration and guidance. I learned many things related to research from both of them. Their truly scientist intuition and an oasis of ideas always inspired and motivated me to fulfill their expectations. I would also like to thank the faculty and staff of Mechanical and Industrial Engineering Department for their timely support. I would also like to thank Tom Papadopoulos and James Jones for all the technical help they did. Also thanks to the Northeastern University for awarding me a Stipended Graduate Assistantship and providing me with the financial means to complete this project. I cannot end without thanking my family, especially Lt Cdr Rahul (my brother), on whose constant encouragement and love I have relied throughout my time at the Northeastern University. My successful completion of MS thesis would not have been possible without their loving support, caring thoughts, superior guidance, and endless patience. -
Lenovo Podium Computer Manual
ThinkCentre User Guide Machine Types: 4466, 4471, 4474, 4477, 4480, 4485, 4496, 4498, 4503, 4512, 4514, 4518, 4554, 7005, 7023, 7033, 7035, 7072, 7079, and 7177 ThinkCentre User Guide Machine Types: 4466, 4471, 4474, 4477, 4480, 4485, 4496, 4498, 4503, 4512, 4514, 4518, 4554, 7005, 7023, 7033, 7035, 7072, 7079, and 7177 Note Before using this information and the product it supports, be sure to read and understand the ThinkCentre Safety and Warranty Guide and Appendix D “Notices” on page 123. First Edition (March 2011) © Copyright Lenovo 2011. LENOVO products, data, computer software, and services have been developed exclusively at private expense and are sold to governmental entities as commercial items as defined by 48 C.F.R. 2.101 with limited and restricted rights to use, reproduction and disclosure. LIMITED AND RESTRICTED RIGHTS NOTICE: If products, data, computer software, or services are delivered pursuant a General Services Administration “GSA” contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No. GS-35F-05925. Contents Important safety information . vii Chapter 3. You and your computer. 21 Service and upgrades . vii Accessibility and comfort . 21 Static electricity prevention. vii Arranging your workspace . 21 Power cords and power adapters . viii Comfort . 21 Extension cords and related devices . viii Glare and lighting . 22 Plugs and outlets. ix Air circulation . 22 External devices . ix Electrical outlets and cable lengths . 22 Heat and product ventilation . ix Register your computer with Lenovo . 23 Operating environment . x Moving your computer to another country or Modem safety information . x region . 23 Laser compliance statement . xi Voltage-selection switch . -
Dell Optiplex 330 User's Guide
Dell™ OptiPlex™ 330 User's Guide Mini Tower Computer Desktop Computer Back to Main Page Advanced Features Dell™ OptiPlex™ 330 User's Guide LegacySelect Technology Control Manageability Power Management LegacySelect Technology Control LegacySelect technology control offers legacy-full, legacy-reduced, or legacy-free solutions based on common platforms, hard-drive images, and help desk procedures. Control is provided to the administrator through system setup, Dell OpenManage™ IT Assistant, or Dell custom factory integration. LegacySelect allows administrators to electronically activate or deactivate connectors and media devices that include serial and USB connectors, a parallel connector, a floppy drive, PCI slots, and a PS/2 mouse. Connectors and media devices that are deactivated make resources available. You must restart the computer to effect the changes. Manageability Dell OpenManage™ IT Assistant IT Assistant configures, manages, and monitors computers and other devices on a corporate network. IT Assistant manages assets, configurations, events (alerts), and security for computers equipped with industry-standard management software. It supports instrumentation that conforms to SNMP, DMI, and CIM industry standards. Dell OpenManage Client instrumentation, which is based on DMI and CIM, is available for your computer. For information on IT Assistant, see the Dell OpenManage IT Assistant User's Guide available on the Dell Support website at support.dell.com. Dell OpenManage Client Instrumentation Dell OpenManage Client Instrumentation is software that enables remote management programs such as IT Assistant to do the following: l Access information about your computer, such as how many processors it has and what operating system it is running. l Monitor the status of your computer, such as listening for thermal alerts from temperature probes or hard-drive failure alerts from storage devices. -
To Fail Or Not to Fail: Predicting Hard Disk Drive Failure Time Windows
To Fail Or Not To Fail: Predicting Hard Disk Drive Failure Time Windows Marwin Z¨ufle,Christian Krupitzer, Florian Erhard, Johannes Grohmann, and Samuel Kounev Software Engineering Group, University of W¨urzburg, W¨urzburg,Germany [email protected], [email protected], [christian.krupitzer;johannes.grohmann;samuel.kounev]@uni-wuerzburg.de Homepage: https://descartes.tools Abstract. Due to the increasing size of today's data centers as well as the expectation of 24/7 availability, the complexity in the administration of hardware continuously increases. Techniques as the Self-Monitoring, Analysis, and Reporting Technology (S.M.A.R.T.) support the monitor- ing of the hardware. However, those techniques often lack algorithms for intelligent data analytics. Especially, the integration of machine learning to identify potential failures in advance seems to be promising to reduce administration overhead. In this work, we present three machine learning approaches to (i) identify imminent failures, (ii) predict time windows for failures, as well as (iii) predict the exact time-to-failure. In a case study with real data from 369 hard disks, we achieve an F1-score of up to 98.0% and 97.6% for predicting potential failures with two or mul- tiple time windows, respectively, and a hit rate of 84.9% (with a mean absolute error of 4.5 hours) for predicting the time-to-failure. Keywords: Failure prediction · S.M.A.R.T. · Machine learning · Label- ing methods · Classification · Regression · Cloud Computing. 1 Introduction Large IT companies like Google, Amazon, Microsoft, and IBM have millions of servers worldwide. The administration of those servers is an expensive and time-consuming task. -
Parallel Port Complete
Parallel Port Complete Programming, Interfacing, & Using the PC's Parallel Printer Port r Includes EPP ECP IEEE-1284 r Source code i n Visual Basic r User tips INCLUDES DISK Jan Axelson Table of Contents Introduction ix 1 Essentials 1 Defining the Port 1 Port Types System Resources 4 Addressing Interrupts DMA Channels Finding Existing Ports Configuring 6 Port Options Drivers Adding a Port Port Hardware 9 Connectors The Circuits Inside Cables Multiple Uses for One Port 11 Security Keys Alternatives to the Parallel Port 13 Serial Interfaces Parallel Port Complete Other Parallel Interfaces Custom I/O Cards PC Cards 2 Accessing Ports 17 The Signals 17 Centronics Roots Naming Conventions The Data Register The Status Register The Control Register Bidirectional Ports Addressing 24 Finding Ports Direct Port 1/O 26 Programming in Basic Other Programming Languages Other Ways to Access Ports 31 LPT Access in Visual Basic Windows API Calls DOS and BIOS Interrupts 3 Programming Issues 39 Options for Device Drivers 39 Simple Application Routines DOS Drivers Windows Drivers Custom Controls Speed 45 Hardware Limits Software Limits 4 Programming Tools 53 Routines for Port Access 53 Data Port Access Status Port Access Control Port Access Bit Operations A Form Template 60 Saving Initialization Data Finding, Selecting, and Testing Ports 5 Experiments 85 Viewing and Controlling the Bits 85 Circuits for Testing Output Types Component Substitutions iv Parallel Port Complete Cables & Connectors for Experimenting 99 Making an Older Port Bidirectional 100 Cautions -
Portable 40 GB USB 2.0 Hard Drive with Rapid Restore Preface
Portable40GBUSB2.0HardDrive with Rapid Restore User’s Guide Portable40GBUSB2.0HardDrive with Rapid Restore User’s Guide Note: Before using this information and the product it supports, read the information in Appendix C, “Warranty information”, on page 37 and Appendix D, “Notices”, on page 49. First Edition (April 2003) © Copyright International Business Machines Corporation 2003. All rights reserved. US Government Users Restricted Rights – Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp. Contents Preface ...............v Setting your backup schedule .......22 Registering your option ..........v Scheduling a backup ..........22 Disabling scheduled backup operations ....23 Before you begin ..........vii Online Help ..............vii Appendix A. Troubleshooting .....25 General troubleshooting information ......25 Chapter 1. Hardware User’s Guide . 1 License information...........25 Adding or changing drive letters ......25 Product description ............1 Alert messages ............26 Hardware and software requirements ......1 Installation troubleshooting information .....26 Installing the drive ............1 Unable to install Rapid Restore Ultra .....26 Making your drive bootable .........3 Multiple SCSI drives ..........26 Disconnecting the drive from your computer . 3 Uninstalling the software .........26 Maintaining the drive ...........3 Partition troubleshooting information......26 Backup troubleshooting information ......27 Chapter 2. Introduction to Rapid Restore Backup operation is slow .........27 Ultra ................5 Emptying the Recycle Bin or running FDISK . 28 Rapid Restore Ultra requirements .......6 Scheduling dates on the 29th, 30th, or 31st . 28 Supported operating systems ........6 Unable to select Archive your backups ....28 Rapid Restore Ultra components........6 Restore troubleshooting information ......28 How Rapid Restore Ultra works ........7 Restore operation is slow .........28 About the hidden partition ........7 Emptying the Recycle Bin or running FDISK .