Transcript BMR 6.0 Technical Presentation

VERITAS NetBackup 6.0 Bare Metal Restore
Technical Presentation
Ray Schafer
Bare Metal Restore Product Specialist
[email protected]
Agenda
Solution Overview
Business Challenges
 Traditional System Recovery Challenges
VERITAS NetBackup Bare Metal Restore™ Technology Overview
 Installation and Configuration Overview
 Daily Operations
 Recovery Scenarios
Key Concepts and Features
Questions
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Acronyms Used In This Presentation
BMR – VERITAS NetBackup Bare Metal Restore™
NBU – VERITAS NetBackup
BMR Client – BMR protected NBU client
SRT – Shared Resource Tree
DDR – Dissimilar Disk Restore
DSR – Dissimilar System Restore
Config – The BMR Client’s configuration stored in the BMR
database
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NetBackup Bare Metal Restore™ - Solution Overview
NetBackup is the first enterprise backup solution that has an
integrated bare metal recovery option capable of making use of
ordinary backup data to automatically restore a system.
The system being restored does not need an Operating System
installed on the disk drives.
The BMR option will allow NetBackup to restore a system to the
exact configuration that existed at any point in time for which a
valid backup image exists – either full or incremental, including
synthetic backups.
The BMR option allows the recovery of Windows Systems to
completely different hardware.
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The Business Challenges of System Recovery
Business Challenges
System recovery takes too long
Traditional methods for system recovery are complex and
require highly skilled staff
Recovery of Windows systems to the same or different
hardware is very difficult
Recovery procedures and tools vary from platform to platform
System configurations and changes are not often tracked
System recovery is complex and often unsuccessful
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Business Challenges
Return to Service
Recovery Timeline
Outage
Mins
Hrs
Days
Wks
Recovery Time
Install/Configure
Install or
Hardware
Recover OS
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Restore
Data
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Traditional Recovery Methods
Traditional approaches to business recovery:
 Reinstall OS and restore data from backup
 Recover system from imaging technology
 Home grown or exotic solutions
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Shortcomings of Traditional Approaches
Require additional training and process maintenance
 Challenge to train support teams
 Maintain the documentation of all processes and procedures required to recover
each system type
 Home Grown Solutions must be maintained as technology evolves
Generally not considered an enterprise solution
 Manually intensive procedural process
 Cannot be leveraged across all platforms
 Not integrated with existing storage management solution – duplicate data
backups
Lack of scalability
 Places extra burden on human and machine resources
Questionable data integrity and consistency
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What Does The BMR Option Bring To Enterprise
System Recovery?
A common method for recovery of most major platforms
 AIX, HP-UX, Linux, Solaris, Windows 2000, XP, 2003
A method of recovery that results in consistent and functional
systems
 Data, OS, and applications are in sync
 OS and application patches & configurations are recovered
A Recovery solution that:
 Is easy to manage and administer
 Uses the data already stored in NetBackup to recover the system
from any incremental or full backup
 Scales easily when additional systems are added
 Provides an unusually high degree of automation for recovery
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Additional BMR Benefits
Support for multiple technologies
 VERITAS Storage Foundation support (Solaris, HP-UX, AIX, Windows)
 AIX LVM, HP-UX LVM, Linux LVM, Windows Dynamic Disks
 Windows mass-storage support (RAID, SCSI)
 SAN support (Windows 2000, 2003), coexistence (UNIX)
Centralized administration
 Using the NBU Administration GUI
 An extensive command line interface also available
One Button Application Recovery (through BMR External Procedures
Feature)
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BMR Recovery vs. Traditional Recovery
Step
9.
8.
Server Recovery Time
7.
6.
5.
Reboot
Load tape(s)
and restore
Reboot
Reload backup
software
Reboot
Step
4.
Reload OS
3.
Reboot
2.
Collect all
media
2.
Click “Prepare
to Restore”
1.
Repair
hardware
1.
Repair
hardware
3.
Reboot
Traditional
Recovery
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Bare Metal
Restore
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Recovery Time Using BMR
Outage
t1
Mins
Return
to Service
t2
Hrs
Days
Recovery Time
Install/Configure
Hardware
BMR
Traditional Methods
Recovery time markedly reduced
Recovery is fully automated – allowing simultaneous multiple restores
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VERITAS NetBackup Bare Metal Restore™ Technology Overview
BMR Primary Functions
Captures system configuration
 Physical layout of disks, TCP/IP and NBU configuration
 Windows disk and network device drivers
 Changes captured with every scheduled backup
Provides restoration environment
 Enables diskless boot
 Supplies tools and utilities
Creates customized restoration procedure
 Builds partitions on drives to be restored
 Re-creates original layout of filesystems, volumes
 Restores original OS from NetBackup
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BMR Logical Components
BMR Master Server Option





Installed on the NBU Master Server
BMR database, administration, logging
Creates custom restore procedures
Allocates/de-allocates recovery resources
Holds User-provided External Procedures
BMR Boot Server
 Installed on any NBU Server or Client
 Houses the Shared Resource Trees (SRTs) that contain the OS
utilities/images, NBU software, other software such as VERITAS
Volume Manager
 Provides the Client boot images
NBU Client
 Collects configuration information when directed to do so by the
NetBackup policy
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BMR Shared Resource Tree (SRT)
SRT’s are created on the BMR Boot Server
SRT 1
An SRT Is:
 Collection of OS files, NBU software, other
programs, such as VERITAS Volume Manager
 Created during BMR installation
 Used to provide a temporary restoration
environment until the OS is restored from NBU
An SRT Is Not:
 Backup image copied from BMR clients
A single SRT can be used simultaneously by
multiple BMR clients
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SRT 2
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BMR Installation and Configuration
No new hardware required
 The BMR Master component is installed on NetBackup Master server
 The BMR Boot Server component can be installed on the NetBackup
Master and/or on a NetBackup client
Small footprint
 Minimal processing needed
 Well defined storage requirement
Flexible Architecture
 Multiple BMR Boot servers
 Choice of installation options
 Choice of recovery mechanism
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Integration Points With NetBackup
The NBU Client includes the required BMR client software. There
is nothing to install on the NBU client.
The BMR Client agent (BMRSavecfg) is run by the NBU Scheduler
and is automatically kicked off at the start of a backup if the BMR
policy attribute is selected.
The BMRSavecfg Job will show up as it’s own job in the Activity
Monitor
 The BMRSavecfg Job will complete before the backup streams start
 A failure by BmrSavecfg will not stop the backup
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Integration Points With NetBackup
The BMR Option is licensed by NBU License Keys
 The BMR node of the Admin Console does not show up if BMR is not
licensed
 The BMR Policy attribute is disabled if BMR is not licensed
BMR uses NBU’s level of Internationalization / Localization
BMR uses VERITAS Unified Logging (VxUL)
Online help is available for the Admin Console, and the
standalone Windows wizards.
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Integration Points With NetBackup
The BMR Database is covered by the NBU Master Server Catalog
Backups
 All of BMR’s volatile Master Server data is stored in the BMR
database; including restore scripts, and external procedures.
 Boot Server data (SRTs and packages) are NOT covered by the
Catalog Backup.
The BMR Master Server is designed to be cluster-able, and
follows the same rules as the rest of the NBU Master Server.
• Executables need to be in place
• The Database (catalog) needs to be failed over.
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Enabling BMR Protection For NBU Clients
1. Install and/or initialize the
BMR DB component on the
NBU Master Server
2. Enable the BMR option in the
NBU Policy
3. Perform an initial full backup
NBU Master Server
With BMR Option
NBU Client
BMR Protected
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BMR Recovery Environment Configuration
NBU Master Server
With BMR Option
1. Install BMR Boot Server(s)
2. Create Shared Resource Trees
(SRTs)
3. Optionally Create BMR Media
Boot CDs
BMR Boot Server
NBU Client
BMR Protected
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BMR Daily Operations
No manual action needed
for daily operations!
NBU Master Server
With BMR Option
NBU Media Server
1. Scheduled backup begins
2. NBU Client saves it’s configuration
3. NBU Client configuration stored
on NBU Master Server
4. Normal backup is performed
BMR Boot Server
NBU Client
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BMR System Recovery
1. Prepare to Restore (optionally edit the
client configuration for DSR)
BMR Server digests client configuration
BMR Server creates custom restore procedures
BMR Server allocates SRT on Boot Server
NBU Master with
BMR Option
NBU Media Server
2. Boot the BMR Client (Network or Media)
Client accesses SRT from the BMR Boot
server or from the CD-Based SRT
Temporary Win installation (Win only)
Client configures disk
Client restores data from NBU
Client reboots into restored partition
Final cleanup is performed upon first login:
BMR Boot Server
NBU Client
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•BMR Server de-allocates SRT on Boot Server
•Temporary Win installation is removed (Win only)
•DSR Tasks are completed (Win only)
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BMR 6.0 Supported Platforms
Clients:
 AIX, HP-UX, Solaris (Sparc), Windows (2000, XP, 2003), Red Hat
Linux, SUSE Linux
Servers:
 AIX, HP-UX, Solaris, Windows (2000 and 2003), Red Hat Linux,
SUSE Linux
VERITAS Storage Foundation
 AIX, HP-UX, Solaris, Windows
Refer to the support matrices at http://support.veritas.com for the
latest information
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Screen Shots of VERITAS NetBackup 6.0 Bare Metal Restore
BMR Management Node in the NBU Administration Console
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Prepare to Restore Operation
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Prepare to Restore Dialog
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BMR Tasks – Queued Restore Task
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Restore Task Properties Dialog
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Advanced Features of VERITAS NetBackup 6.0 Bare Metal Restore
VERITAS NetBackup 6.0 Bare Metal Restore™
Dissimilar Disk Restore (DDR)
BMR’s DDR feature allows a UNIX or Windows System to be
recovered to a system with completely different disks.
This is used to recover to a system where the disks have
changed.
 It can be used to change partition types, sizes, and disk location.
 Modeled after the VEA GUI.
It can also be invoked to change the disk layouts before the disk
partitioning/formatting is done.
The interface is consistent across all platforms
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Bare Metal Restore Clients Node - Volumes
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BMR Configuration Editor - Change Volumes Screen – Disk View
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BMR Configuration Editor - Change Volumes Screen – Table View
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Windows Dissimilar System Restore
BMR allows Windows systems to be recovered to dissimilar
hardware:
 CPU speeds and number of CPU’s can differ
 HAL (Hardware Abstraction Layer) can be incompatible
 Mass Storage Drivers can differ
 Network Interface cards can be different
 IP Address changes can be made
 NBU configuration can be changed
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The BMR Client “config” – The key to Windows
Dissimilar System Restore (DSR)
Windows DSR is made possible by a BMR concept known as the
Client Configuration – commonly referred to as the “config”.
The BMR client config can be thought of as an abstraction of the
system. It is stored as an entity on the NBU Master Server in the
BMR database.
The client’s original configuration is called “current” and is locked
for editing to ensure that the original system can always be
recovered.
The “current” config can be copied and the copy can be
extensively edited:
 Disk and Network Drivers, IP addresses, Network Routes, NBU Client
configuration, and disk volumes can be changed
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BMR Configuration Editor
The BMR Configuration editor can be used to edit a configuration
in the BMR database
The original system does not need to be available
 Editing can be done after the system has suffered an outage
 The destination hardware can be decided upon after an outage of the
original system
The resulting edited configuration can be used in the “Prepare to
Restore” operation to recover to dissimilar hardware
The following screens in the configuration editor are used to
change the Disk and Network Drivers in the config
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Configuration Editor - Summary Screen
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Change Drivers Screen
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Additional Configuration Editing
The Configuration Editor allows other changes to be made:
 IP and Network changes
•
•
•
•
Interface IP addresses/netmasks can be added or removed
Additional IP aliases can be defined on a single interface
DNS Servers can be changed or added
Network routes can be changed, added, or removed.
 NetBackup Client configuration
• Additional Media Servers can be added
• IP Addresses of Master and Media Servers can be changed
• IP Address of Client can be changed
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QUESTIONS
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ANSWERS
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