DOCSLIB.ORG

Installation and User|Mjs Guide

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text

Load more

Tivoli® Storage Manager FastBack Version 6.1.0.0 Storage Manager FastBack Installation and User's Guide SC23-8562-04 Tivoli® Storage Manager FastBack Version 6.1.0.0 Storage Manager FastBack Installation and User's Guide SC23-8562-04 Note Before using this information and the product it supports, read the information in “Notices” on page 215. This edition applies to version 6, release 1, modification 0 of IBM Tivoli Storage Manager FastBack (product number 5724-U93) and to all subsequent releases and modifications until otherwise indicated in new editions. © Copyright International Business Machines Corporation 2008, 2009. US Government Users Restricted Rights – Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp. Contents Preface ...............v Active Directory integration ........60 Who should read this guide .........v Tivoli Storage Manager FastBack accounts . 60 Publications ..............v Switching between Tivoli Storage Manager Support information ............v FastBack and Active Directory domains ....61 Getting technical training .........v Searching knowledge bases ........v Chapter 5. Starting and configuring . 63 Contacting IBM Software Support ......vi Starting and running services for Tivoli Storage Conventions used in this information .....viii Manager FastBack ............63 Documentation changes ..........viii Starting FastBack Manager .........64 Starting FastBack Reporting (Windows only) . 65 Chapter 1. Tivoli Storage Manager Navigating FastBack Manager ........66 FastBack ..............1 Configuration ............68 System components ............2 Snapshots Monitor ...........70 Data deduplication ............4 Recovery ..............71 Handling multiple LAN cards on the same Chapter 2. Planning..........7 computer ...............72 Connecting client to server .........72 Supported operating systems .........7 Configuration and log files .........73 Hardware requirements ..........17 Changing connection parameters to FastBack Server 74 Dynamic disk support (Windows only) ....21 Working with FastBack Manager in WAN Software requirements and prerequisites.....23 environment .............74 Microsoft Cluster Server (MSCS) and Veritas Cluster Configuring SAN environment .......74 Server (VCS) (Windows only) ........30 Setting the system clock ..........75 Chapter 3. Installing and upgrading . 33 Chapter 6. Backing up and restoring 77 Performing prerequisite tasks ........34 Repositories ..............79 Installing Tivoli Storage Manager FastBack using the Before creating repositories ........81 installation wizard ............35 Creating repositories ..........83 Installing FastBack Server (Windows only) . 35 Allowing read/write access to a disk with disk Installing FastBack Client .........37 open utility .............87 Installing FastBack Disaster Recovery Server Changing repository pool properties .....88 (Windows only) ............39 Setting up snapshot policies .........91 Installing with Advanced options ......41 Using wizards to create snapshot policies . 93 Installing FastBack Reporting (Windows only) . 45 Creating snapshot policies manually .....97 Installing Tivoli Storage Manager FastBack with the Managing snapshot policies ........99 console installation wizard (Linux only) .....46 Changing the global application-aware Installing Tivoli Storage Manager FastBack in silent parameters (Windows only) .......100 mode ................46 Manual snapshot back up ........103 Installing the language packs ........48 Mounting snapshots ...........103 Upgrading Tivoli Storage Manager FastBack FastBack Mount security (Windows only) . 104 (Windows only) .............48 Using FastBack Mount and Veritas NetBackup Uninstalling ..............49 (Windows only) ...........105 Volume and file recovery .........107 Chapter 4. User management and Restoring volumes...........109 security ..............53 Recovering files ...........110 Active Directory groups ..........53 Instant Restore (Windows only) ......113 FastBack Manager user groups ........54 Continuous Data Protection (Windows only) . 118 Creating user groups ..........54 Restoring data from Continuous Data Protection Creating users ............55 snapshots (Windows only) ........119 Changing user properties .........56 Stopping Continuous Data Protection (Windows Deleting users ............56 only) ...............121 Changing user group properties ......56 Continuous Data Protection slider and FastBack Deleting user groups ..........57 Server events (Windows only) .......121 Access permissions ............57 Microsoft Exchange back up and restore ....123 Security and login ............59 Background .............123 © Copyright IBM Corp. 2008, 2009 iii Tivoli Storage Manager FastBack for Microsoft Problem determination (Windows only) ....166 Exchange back up and restore processes . 124 Types of backup ...........124 Chapter 9. FastBack Disaster Setting the global application aware parameters Recovery (Windows only) ......169 (Windows only) ...........125 Setting up FTP for the disaster recovery destination Creating an Exchange snapshot policy ....125 (Windows only) ............169 Backing up a clustered Exchange file server . 126 Disaster Recovery configuration .......170 Exchange 2000, Exchange 2003, and Exchange Problem determination for Disaster Recovery 2007 restore .............127 (Windows only) ............170 Restoring a full Exchange 2000 Server database 127 Scheduling replication ..........172 Restoring data from Microsoft Exchange 2007 Using Disaster Recovery..........172 Cluster Continuous Replication ......128 Locking snapshots during Disaster Recovery . 172 SQL back up and restore .........128 Central Control Station (Windows only) ....173 Tivoli Storage Manager FastBack SQL back up 130 Starting Central Control Station (Windows only) 173 Creating an SQL snapshot policy ......130 Using Central Control Station (Windows only) 173 Editing SQL snapshot policy .......131 Tivoli Storage Manager FastBack SQL restore 132 Backing up and restoring Lotus Domino Databases 135 Chapter 10. Administrative Command Supported environments ........135 Line ...............177 Snapshots of an offline Domino server ....135 Starting the Administrative Command Line . 177 Snapshots relying on Domino crash recovery 137 Authentication .............177 Tips...............137 Command overview, including reading syntax Configuring Tivoli Storage Manager FastBack diagrams ...............178 for offline backup of Domino servers ....138 alerts ...............179 Considerations and usage notes for Domino app................179 backup scripts ............140 client_group .............179 Backing up and restoring DB2 UDB databases . 141 dr................180 Supported environments ........141 irestore (Windows only) .........181 Best practices ............141 job................182 Configuring Tivoli Storage Manager FastBack log................185 for online back up of DB2 UDB ......143 mount ...............185 Recovering operating system partitions using Bare net................189 Machine Recovery ............144 pjob ...............189 policy ...............189 Chapter 7. Maintaining .......147 set_connection ............191 Server status .............147 snapshot ..............191 Monitoring events and snapshots.......147 util ................193 Viewing events ............147 ver................193 Monitoring snapshots .........148 Optimizing disk access ..........150 Chapter 11. Best practices ......195 Cleanup ...............151 Tivoli Storage Manager backup-archive client Generations .............151 integration ..............195 Cleanup configuration .........152 Using FastBack Mount and IBM Tivoli Storage Manual repository cleanup options .....154 Manager ...............196 Automatic disk cleanup process overview . 155 Consistent backup of Oracle databases .....199 Error recovery: Setting the number of retries . 155 Prerequisites.............199 Alerts and notifications ..........155 General guidelines ..........200 Configurable parameters ........156 Scripts...............200 Environment variables .........156 Preparing the system ..........201 Disabling utilities ...........157 SQL server with named instances backup ....203 Using the FastBackSendMail utility .....157 Consistency point ...........203 Configuring periodic e-mail notification . 157 Pre or Post Processes scripts .......203 The complete batch file .........158 FastBack Server setup .........203 Limited mode .............159 Viewing software versions .........160 Chapter 12. Troubleshooting .....205 Multi-language support limitations ......161 Notices ..............215 Chapter 8. Reporting (Windows only) 163 Trademarks ..............217 Configuring the data source (Windows only) . 164 Running and viewing reports (Windows only) . 165 Glossary .............219 iv Installation and User's Guide Preface This publication documents how to install, configure, and use IBM® Tivoli® Storage Manager FastBack™ Version 6.1.0.0. Who should read this guide This publication provides instructions for a user to install, configure, and use Tivoli Storage Manager FastBack. Publications Tivoli Storage Manager FastBack publications and other related publications are available online. You can search publications in the Tivoli Storage Manager FastBack Information Center: http://publib.boulder.ibm.com/infocenter/tsmfbinf/v6/index.jsp You can download PDF versions of publications from the Tivoli Storage Manager FastBack Information Center or from the IBM Publications Center at http://www.ibm.com/shop/publications/order/.
Recommended publications
  • How to Cheat at Windows System Administration Using Command Line Scripts

    How to Cheat at Windows System Administration Using Command Line Scripts

    www.dbebooks.com - Free Books & magazines 405_Script_FM.qxd 9/5/06 11:37 AM Page i How to Cheat at Windows System Administration Using Command Line Scripts Pawan K. Bhardwaj 405_Script_FM.qxd 9/5/06 11:37 AM Page ii Syngress Publishing, Inc., the author(s), and any person or firm involved in the writing, editing, or produc- tion (collectively “Makers”) of this book (“the Work”) do not guarantee or warrant the results to be obtained from the Work. There is no guarantee of any kind, expressed or implied, regarding the Work or its contents.The Work is sold AS IS and WITHOUT WARRANTY.You may have other legal rights, which vary from state to state. In no event will Makers be liable to you for damages, including any loss of profits, lost savings, or other incidental or consequential damages arising out from the Work or its contents. Because some states do not allow the exclusion or limitation of liability for consequential or incidental damages, the above limitation may not apply to you. You should always use reasonable care, including backup and other appropriate precautions, when working with computers, networks, data, and files. Syngress Media®, Syngress®,“Career Advancement Through Skill Enhancement®,”“Ask the Author UPDATE®,” and “Hack Proofing®,” are registered trademarks of Syngress Publishing, Inc.“Syngress:The Definition of a Serious Security Library”™,“Mission Critical™,” and “The Only Way to Stop a Hacker is to Think Like One™” are trademarks of Syngress Publishing, Inc. Brands and product names mentioned in this book are trademarks or service marks of their respective companies.
  • Carbon Copy Cloner Documentation: English

    Carbon Copy Cloner Documentation: English

    Carbon Copy Cloner Documentation: English Getting started with CCC System Requirements, Installing, Updating, and Uninstalling CCC CCC License, Registration, and Trial FAQs Trouble Applying Your Registration Information? Establishing an initial backup Preparing your backup disk for a backup of Mac OS X Restoring data from your backup What's new in CCC Features of CCC specific to Lion and greater Release History Carbon Copy Cloner's Transition to a Commercial Product: Frequently Asked Questions Credits Example backup scenarios I want to clone my entire hard drive to a new hard drive or a new machine I want to backup my important data to another Macintosh on my network I want to backup multiple machines or hard drives to the same hard drive I want my backup task to run automatically on a scheduled basis Backing up to/from network volumes and other non-HFS volumes I want to back up my whole Mac to a Time Capsule or other network volume I want to defragment my hard drive Backup and archiving settings Excluding files and folders from a backup task Protecting data that is already on your destination volume Managing previous versions of your files Automated maintenance of CCC archives Advanced Settings Some files and folders are automatically excluded from a backup task The Block-Level Copy Scheduling Backup Tasks Scheduling a task and basic settings Performing actions Before and After the backup task Deferring and skipping scheduled tasks Frequently asked questions about scheduled tasks Email and Growl notifications Backing Up to Disk Images
  • Windows 95 & NT

    Windows 95 & NT

    Windows 95 & NT Configuration Help By Marc Goetschalckx Version 1.48, September 19, 1999 Copyright 1995-1999 Marc Goetschalckx. All rights reserved Version 1.48, September 19, 1999 Marc Goetschalckx 4031 Bradbury Drive Marietta, GA 30062-6165 tel. (770) 565-3370 fax. (770) 578-6148 Contents Chapter 1. System Files 1 MSDOS.SYS..............................................................................................................................1 WIN.COM..................................................................................................................................2 Chapter 2. Windows Installation 5 Setup (Windows 95 only)...........................................................................................................5 Internet Services Manager (Windows NT Only)........................................................................6 Dial-Up Networking and Scripting Tool....................................................................................6 Direct Cable Connection ..........................................................................................................16 Fax............................................................................................................................................17 Using Device Drivers of Previous Versions.............................................................................18 Identifying Windows Versions.................................................................................................18 User Manager (NT Only) .........................................................................................................19
  • 05 Vcloud Services Consultant

    05 Vcloud Services Consultant

    Optimizing Windows for VMware View 4.5 Optimizing Windows for VMware View™ 4.5 (Optimizing Windows 7, Windows Vista and XP) Version 2.0 For use only by VMware PSO and VMware Solution Providers Consulting Service Delivery Aid – Not a Customer Deliverable Optimizing Windows for VMware View 4.5 Version History Date Ver. Author Description Rev iewers February 2011 V2.0 Tim Federwitz Second Release (Added Dav id Richardson, John Windows XP and Vista) Dodge, Matt Coppinger, Matt Wood August 2010 V1.0 Tim Federwitz First Release (Windows 7 John Dodge, Matt only ) Coppinger, Matt Lesak, Ry an Miersma, Justin Venezia © 2011 VMware, Inc. All rights reserved. This product is protected by U.S. and international copyright and intellectual property laws. This product is covered by one or more patents listed at http://www.vmware.com/download/patents.html . VMware is a registered trademark or trademark of VMware, Inc. in the United States and/or other jurisdictions. All other marks and names mentioned herein may be trademarks of their respective companies. VMware, Inc 3401 Hillview Ave Palo Alto, CA 94304 www.vmware.com © 2011 VMware, Inc. All rights reserved. Page 2 of 44 Optimizing Windows for VMware View 4.5 Contents 1. Introduction ......................................................................................... 4 1.1 Comparing Default and Optimized Windows 7 Installations ........................................ 4 1.2 How to use this Guide ............................................................................................... 4 2.
  • Tectips: Hidden FDISK(32) Options

    Tectips: Hidden FDISK(32) Options

    WHITE PAPER TecTips: Hidden FDISK(32) Options Guide Previously Undocumented Options of the FDISK Utility Released Under Microsoft Windows95™ OSR2 or Later Abstract 2 Document Conventions 2 Read This First 3 Best-Case Scenario 3 Windows Startup Disk 3 How to apply these options 3 FDISK(32) Options 4 Informational Options 4 Behavioral Options 5 Functional Options 6 February, 2000 Content ©1999 StorageSoft Corporation, all rights reserved Authored by Doug Hassell, In-house Technical Writer StorageSoft White Paper page 2 FDISK(32) Command Line Options Abstract Anyone that remembers setting-up Windows 3.x or the first Win95 release surely knows of the text-based utility, fdisk.exe. Some of those may even be aware of the few, documented switches, such as /status, /x or even the commonly referenced /mbr. Even fewer would be aware of the large table of undocumented command-line options - including automated creation, reboot behavior, and other modifiers - which we will divulge in this document. Note that all options given here are not fully tested, nor are they guaranteed to work in all scenarios, all commands referenced apply to the contemporary release of Win95 (OSR2 - version “B” - or later, including Win98 and the up-and-coming Millennium™ edition). For our recommendation on how to use these swtiches, please refer to the “Read This First” section. Document Conventions In this document are certain references that deserve special recognition. This is done through special text- formatting conventions, described here… v Words and phrases of particular importance will stand-out. Each occurrence of this style will generally indicate a critical condition or pitfall that deserves specific attention.
  • FDISK to Partition New Hard Drives

    FDISK to Partition New Hard Drives

    RADIFIED FDISK Guide: Doc's Hard Drive Partitioning Tutorial Radified Guide to FDISK Create Hard Drive Partitions This FDISK guide comes to you compliments of "the Doc": a friend who lives in Germany. It has since become one of the site's most popular features. [Only the Ghost guide and the ASPI guide are downloaded more frequently.] The 'F' in FDISK stands for Fixed. FDISK is a utility used to partition Fixed DISK drives. The Create screen looks like this: This guide/tutorial teaches you the mojo on how to partition a hard disk drive (HDD) using Microsoft's DOS-based partitioning utility. Because FDISK runs from DOS, and offers no pretty graphical user interface [GUI], some folks find it intimidating. But FDISK is really simple and straightforward .. once you understand a few, basic concepts. Just because FDISK offers no GUI, that doesn't mean we can't use a graphical representation of hard drive partitions to help us understand how they work. The image located at the top of this page comes from Partition Magic: a powerful Windows-based partitioning program. PM sports a slick GUI. This graphic you see there represents a single 120-GB drive. This drive contains 3 NTFS partitions: one primary, and two logical DOS drives in an extended partition [light-blue outline]. Yellow areas contain data. White areas are empty. This image should help you form a mental representation of how partitions work. Introduction FDISK's #1 strength is compatibility. Other partitioning utilities [such as the wonderful Partition Magic] offer far more features, such as the ability to modify partitions non-destructively.
  • List Drive Using Cmd

    List Drive Using Cmd

    List drive using cmd click here to download You can display or list drives in CMD / Command Prompt or PowerShell, using wmic, diskpart, fsutil, psdrive command line, in Windows 10 / 8. The command that erases the drive during this process is "Clean". In this article " Clean" From the diskpart prompt, type list disk and press Enter. Shows the. If you want to use it in a script, then wrap it in for /f with the skip=1 . that whenever typed will run the given command and list all volume letters. How to create a partition from Command Prompt. First of all, open the To view the available disks on your system, use the command list disk. Diskpart is a separate suite of commands that runs in the command window in a particular disk, partition, or volume it must first be selected with the "list disk". You can manually assign permanent drive letters in Windows Type the following command to list all the volumes on your computer and. How does one get a list of the drives connected from the command line? For instance, sometimes I need to run chkdsk on a hdd, so I pop the. See drives in MS-DOS and the Windows command to list all available drives on the computer through. We can run the below command from windows command prompt to get the list of local drives. wmic logicaldisk get description,name | findstr /C:”Local” We can. Diskpart assign and remove drive letter with its syntax in the command prompt. There are And you can type list volume to see the details.
  • Partition.Pdf

    Partition.Pdf

    Linux Partition HOWTO Anthony Lissot Revision History Revision 3.5 26 Dec 2005 reorganized document page ordering. added page on setting up swap space. added page of partition labels. updated max swap size values in section 4. added instructions on making ext2/3 file systems. broken links identified by Richard Calmbach are fixed. created an XML version. Revision 3.4.4 08 March 2004 synchronized SGML version with HTML version. Updated lilo placement and swap size discussion. Revision 3.3 04 April 2003 synchronized SGML and HTML versions Revision 3.3 10 July 2001 Corrected Section 6, calculation of cylinder numbers Revision 3.2 1 September 2000 Dan Scott provides sgml conversion 2 Oct. 2000. Rewrote Introduction. Rewrote discussion on device names in Logical Devices. Reorganized Partition Types. Edited Partition Requirements. Added Recovering a deleted partition table. Revision 3.1 12 June 2000 Corrected swap size limitation in Partition Requirements, updated various links in Introduction, added submitted example in How to Partition with fdisk, added file system discussion in Partition Requirements. Revision 3.0 1 May 2000 First revision by Anthony Lissot based on Linux Partition HOWTO by Kristian Koehntopp. Revision 2.4 3 November 1997 Last revision by Kristian Koehntopp. This Linux Mini−HOWTO teaches you how to plan and create partitions on IDE and SCSI hard drives. It discusses partitioning terminology and considers size and location issues. Use of the fdisk partitioning utility for creating and recovering of partition tables is covered. The most recent version of this document is here. The Turkish translation is here. Linux Partition HOWTO Table of Contents 1.
  • Chapter 8: Disks and Filesystems

    Chapter 8: Disks and Filesystems

    8 D I S K S A N D F I L ESYSTEMS Oh, my head hurts bad. Rings of ones and zeros, ouch! Filesystems hide them. Proper data management is perhaps a sys- tems administrator’s most vital duty. You can replace almost every computer compo- nent, but the data on your disk is irreplace- able. Perhaps that data isn’t important or it’s backed up, but losing files will ruin your day. As a sysadmin, you must protect important data by carefully manag- ing your disks and filesystems. We covered the basics of disklabels and MBR partitions in Chapter 2, but OpenBSD lets you use and abuse disks and filesystems in any number of ways. You’ll learn how in this chapter. !"#$%&'()*+(,-./0)1,2)(23'3$,) 415670)839:;(%)<=)>&9;# Device Nodes A device node is a file that provides a logical interface to a piece of hardware. By reading from a device node, sending data to it, or using a command on it, you’re telling the operating system to perform an action on a piece of hardware or, in some cases, a logical device. Different devices behave differently when data is sent to them. For example, writing to the console makes text appear on the screen or termi- nal, while writing to a disk device puts data on that disk. (OpenBSD puts device nodes in /dev and disallows device nodes on other filesystems.) Many disk management programs expect to be given a device name as an argument. Unfortunately, device node names are frequently cryptic and vary widely among operating systems—even on closely related operat- ing systems that run on the same hardware.
  • Ch 7 Using ATTRIB, SUBST, XCOPY, DOSKEY, and the Text Editor

    Ch 7 Using ATTRIB, SUBST, XCOPY, DOSKEY, and the Text Editor

    Using ATTRIB, SUBST, XCOPY, DOSKEY, and the Text Editor Ch 7 1 Overview The purpose and function of file attributes will be explained. Ch 7 2 Overview Utility commands and programs will be used to manipulate files and subdirectories to make tasks at the command line easier to do. Ch 7 3 Overview This chapter will focus on the following commands and programs: ATTRIB XCOPY DOSKEY EDIT Ch 7 4 File Attributes and the ATTRIB Command Root directory keeps track of information about every file on a disk. Ch 7 5 File Attributes and the ATTRIB Command Each file in the directory has attributes. Ch 7 6 File Attributes and the ATTRIB Command Attributes represented by single letter: S - System attribute H - Hidden attribute R - Read-only attribute A - Archive attribute Ch 7 7 File Attributes and the ATTRIB Command NTFS file system: Has other attributes At command line only attributes can change with ATTRIB command are S, H, R, and A Ch 7 8 File Attributes and the ATTRIB Command ATTRIB command: Used to manipulate file attributes Ch 7 9 File Attributes and the ATTRIB Command ATTRIB command syntax: ATTRIB [+R | -R] [+A | -A] [+S | -S] [+H | -H] [[drive:] [path] filename] [/S [/D]] Ch 7 10 File Attributes and the ATTRIB Command Attributes most useful to set and unset: R - Read-only H - Hidden Ch 7 11 File Attributes and the ATTRIB Command The A attribute (archive bit) signals file has not been backed up. Ch 7 12 File Attributes and the ATTRIB Command XCOPY command can read the archive bit.
  • Storage Administration Guide Storage Administration Guide SUSE Linux Enterprise Server 15

    Storage Administration Guide Storage Administration Guide SUSE Linux Enterprise Server 15

    SUSE Linux Enterprise Server 15 Storage Administration Guide Storage Administration Guide SUSE Linux Enterprise Server 15 Provides information about how to manage storage devices on a SUSE Linux Enterprise Server. Publication Date: September 24, 2021 SUSE LLC 1800 South Novell Place Provo, UT 84606 USA https://documentation.suse.com Copyright © 2006– 2021 SUSE LLC and contributors. All rights reserved. Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or (at your option) version 1.3; with the Invariant Section being this copyright notice and license. A copy of the license version 1.2 is included in the section entitled “GNU Free Documentation License”. For SUSE trademarks, see https://www.suse.com/company/legal/ . All other third-party trademarks are the property of their respective owners. Trademark symbols (®, ™ etc.) denote trademarks of SUSE and its aliates. Asterisks (*) denote third-party trademarks. All information found in this book has been compiled with utmost attention to detail. However, this does not guarantee complete accuracy. Neither SUSE LLC, its aliates, the authors nor the translators shall be held liable for possible errors or the consequences thereof. Contents About This Guide xi 1 Available Documentation xi 2 Giving Feedback xiii 3 Documentation Conventions xiii 4 Product Life Cycle and Support xv Support Statement for SUSE Linux Enterprise Server xvi • Technology Previews xvii I FILE SYSTEMS AND MOUNTING 1 1 Overview of File Systems
  • Partitioning Disks with Parted

    Partitioning Disks with Parted

    Partitioning Disks with parted Author: Yogesh Babar Technical Reviewer: Chris Negus 10/6/2017 Storage devices in Linux (such as hard drives and USB drives) need to be structured in some way before use. In most cases, large storage devices are divided into separate sections, which in Linux are referred to as partitions. A popular tool for creating, removing and otherwise manipulating disk partitions in Linux is the parted command. Procedures in this tech brief step you through different ways of using the parted command to work with Linux partitions. UNDERSTANDING PARTED The parted command is particularly useful with large disk devices and many disk partitions. Differences between parted and the more common fdisk and cfdisk commands include: • GPT Format: The parted command can create can be used to create Globally Unique Identifiers Partition Tables (GPT), while fdisk and cfdisk are limited to msdos partition tables. • Larger disks: An msdos partition table can only format up to 2TB of disk space (although up to 16TB is possible in some cases). A GPT partition table, however, have the potential to address up to 8 zebibytes of space. • More partitions: Using primary and extended partitions, msdos partition tables allow only 16 partitions. With GPT, you get up to 128 partitions by default and can choose to have many more. • Reliability: Only one copy of the partition table is stored in an msdos partition. GPT keeps two copies of the partition table (at the beginning and end of the disk). The GPT also uses a CRC checksum to check the partition table's integrity (which is not done with msdos partitions).