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TitleDesigning Hpe Backup Solutions_pd47743-2 159 Pages
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Table of Contents
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1 Downtime and Availability
	Introduction
	Downtime
		Defining downtime
		Describing causes of downtime
		Building-level incidents
		Metropolitan area disasters
		Regional events
		Planned vs. unplanned downtime
		Estimating the cost and impact of downtime
		Tangible and direct costs[i]
		Intangible and indirect costs
		Outage impact to business
		Consequences of downtime
		Predicting downtime
		Defining MTBF
		Calculating MTBF
		Defining and calculating MTTR
		Planning for and preventing downtime
	Learning check questions
	Learning check answers
	Availability
		Learner activity
		Defining availability
		Categorizing availability
		Achieving availability
		RPO and RTO
		Recovery Point Objective
		Recovery Time Objective
		Availability technologies
		Redundant Array of Inexpensive (or Independent) Disks
		Snapshots
		Replication
		Calculating system’s availability
		Planning for availability
	Learning check answers
	Summary
2 Backup Strategies
	Introduction
	Learner Assessment
	What is a backup?
		Backup definition
		Backup purpose
		Backup sets
		Backup types
	Archive bit
	Learner assessment
	Learner Assessment Answers
	Offline backup
	Online backup
	File-by-file backup (file-based backup)
	Image backup (image-based backup)
	User-defined backup
	Full backup
	Differential backup
	Incremental backup
	When to choose incremental vs. differential backup
	Backup to disk
	Synthetic backup
	Data Protector virtual full backup
	Working set backup
	Block-level incremental backup
	Snapshots (frozen images, off-host backups, or nondisruptive backups)
	Backup tape rotation schemes
		What are backup tape rotation schemes?
		First-In, First-Out (FIFO)
		Grandfather–father–son
		Tower of Hanoi
		Overwrite protection and append periods
		>Example
		Media rotation policies
		Backup in a cloud
	Learning check questions
	Learning check answers
	What is a restore?
		Restore definition
		Possible problems with restore operations
	What is archiving?
		Differences between backing up and archiving
		Data retention and archiving
	What is data tiering?
	Backup Basics—Your Backup And Recovery Plan
		Step 1. Identifying which data must be saved
		Steps 2–3. Grouping this data into “(jobs)” and assigning level of importance to these job groups
		Step 4. Calculating the backup frequency
		Step 5. Protecting this data
		Step 6. Testing your backup operations
		Step 7. Maintaining your backup history
		Step 8. Archiving your tapes
		Step 9. Defining and testing your restore procedures
		Advantages and disadvantages of tape drives
		WORM technologies
		Removable disk backup (RDX)
		Tape libraries and virtual tape libraries
	Learning check questions
	Learning check answers
	Summary
3 Topology and Performance
	Introduction
	Backup Methods And Topologies
		Local backup
		Local backup with tape libraries
		Client/server backup
		Push agents
		Deduplication
		Backup encryption
		Serverless backup
	Storage Area Networks
		Two basic FC topologies
		Arbitrated loop (AL)
		Switched fabric
		Advantages of switched fabrics and SANs
		SAN terminology
	Learner activity
	Learner activity answers
	Learning check questions
	Learning check answers
	Backup And Disaster Recovery Tiers
		Levels/tiers of IT disaster recovery
		Learner activity
		Tier 0: Do nothing, no offsite data
		Tier 1: Offsite vaulting
		Tier 2: Offsite vaulting with hot site
		Tier 3: Electronic vaulting
		Tier 4: Electronic vaulting with active 2nd site
		Tier 5: Two-site, two-phase commit
		Tier 6: Zero data loss
		Tier 7: Highly automated, business integrated solution
		Cost vs. time-to-recover relationship
	Hpe Backup Technologies And Solutions
		SAN zoning
		Heterogeneous SAN with HPE StoreEver, StoreOnce, and StoreServ
		Multipath to tape
		HPE StoreOnce backup to tape offload
		HPE StoreOnce Catalyst remote site replication
		HPE StoreOnce deduplication impact on backup performance
	Nas Backup Technologies
		Hierarchical Storage Management (HSM)
		Near-online storage
	Learning check questions
	Learning check answers
	Tape-As-Nas For Archiving
		Challenges with using backup applications for archiving
		Using tNAS for archiving
		Moving to a tNAS solution
		Technology updates with tNAS
		Tiered storage and data lifecycle management with tNAS
		tNAS with LTO tape for archiving
		Key benefits of tNAS
	Sample Backup Information Collection For Capacity Planning
		Scenario
		Information needed per node
		Information needed per network device
		Information needed per backup server
		Capacity planning calculations
	Summary
4 Backup and Archive Configurations
	Introduction
	Simple Backup Configurations
		Point-to-point configuration
		HPE StoreOpen with LTFS software
	San-Based Backup Configurations
		Connected independent fabrics
		HPE StoreEver tape library partitioning
		Extended SAN
	Learning check questions
	Learning check answers
	Remote Backup Configurations
		HPE StoreServ Remote Copy software
		HPE StoreOnce Catalyst remote site replication
		HPE StoreAll backup to HPE StoreEver tape storage with Symantec NetBackup
		HPE StoreServ File Persona Share Backup
		HPE StoreServ File Persona software NDMP backup
		HPE StoreOnce VSA and enterprise remote office/branch office (ROBO)
	Virtualization-Related Backup Configurations
		HPE StoreOnce Recovery Manager Central for VMware
		VMware vStorage API for Data Protection (VADP)
		Veeam backup and restore to HPE StoreEver tape storage with HPE StoreServ integration
		Veeam backup to HPE StoreOnce with tape offload
	Hpe Enterprise Secure Key Manager (Eskm)
	Tiered Data Retention For Hpe Storeserv
	Learning check questions
	Learning check answers
	Learner Activity
		Learner activity answers
	Additional References
	Summary
5 Practice Test
	Introduction
		Minimum Qualifications
		HPE0-J77 EXAM DETAILS
		HPE0-J77 TESTING OBJECTIVES
	Test Preparation Questions and Answers
	Questions
	Answers
                        
Document Text Contents
Page 2

Designing HPE Backup Solutions eBook

First Edition

Aleksandar Miljković

Page 79

Figure 3-2 Local backup in a networked environment

The main advantage of local backup is speed, which is only limited by local factors such as speed of the
devices and the bus/controller. Also, local backup does not consume any LAN bandwidth (Figure 3.2).

The main disadvantage is cost. Local backup is relatively expensive because each server needs its own
backup application and a backup device as well as a person who manages the media.

Local backup with tape libraries
To address user errors and the overall management of local backups, introduction of tape libraries into
the environment enables multiple computers to be directly (locally) connected to a tape library instead of
individual standalone tape devices.

Figure 3-3 Local backup with tape libraries

The environment consists of a centralized tape library with multiple tape drives, supporting a number of

Page 80

servers that need to be backed up (Figure 3.3). When using automated tape libraries, there is something to
consider—only one system can control the loader robot in the tape library. What happens if the robot or
the computer controlling the robot fails?

Advantages of the local backup with tape libraries are speed, which is limited by only local factors, no
consumption of LAN bandwidth, and no need for individual tape media management.

The disadvantages consist of the computer controlling the robot or the robot itself being a single point of
failure and a high price as compared to the local backup without tape libraries.

Some of the disadvantages of physical tape libraries are addressed by virtual tape libraries (VTLs). VTL
is a network-based device which runs a software that simulates characteristics of the traditional tape
library. Instead of saving data on tapes, a VTL uses fast-rotating hard drives. Software middle layer
provides the tape library interface over the network to the backup software so that the backup software
can treat the VTL as a physical tape library.

Client/server backup
The client/server backup model is also called the centralized server backup.

Figure 3-4 Client/server backup

With this method, all computers and their local disk volumes have a LAN connection to one or more
central servers with attached backup devices. The data is pulled over the network from the clients by the
server-based backup application and then stored on tape. When a tape library is used as the backup
device, the solution is referred to as automated client/server backup (Figure 3.4). This model adds extra
capacity and advantages of automation. However, both cases present a single point of failure—if the
server or the attached tape device fails, no client can be backed up.

The advantages of this solution are consolidation onto one backup device, fewer media management
challenges, and centralized management and automation.

The disadvantages are a single point of failure (either the backup server or the tape device) and LAN
performance degradation.

Push agents
Another approach is to have a backup client application (called push agent) on each machine in the
network that pushes the data to the server with the attached backup device and the server backup

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and B. Which software from HPE must be used to achieve this configuration?

a. StoreOpen Enterprise
b. StoreServ Remote Copy
c. Command View for Tape Libraries
d. StoreAll backup to StoreEver tape storage with Symantec NetBackup

Utilizing the partitioning feature in the tape library management console and HPE Command View for
Tape Libraries, each backup application or department is presented with a logical library comprised
of a subset of drives and slots from the physical library.

For more information, see Chapter 4, section HPE StoreEver tape library partitioning.

18. Refer to Figure 5.3.

Figure 5-3 HPE StoreServ File Persona Share Backup configuration

Which highlighted component within the HPE StoreServ File Persona Share Backup configuration is
responsible for using the appropriate protocol to read the data from the HPE StoreServ File Persona
and writing it to the target backup device?

a. Media server
b. vCenter server
c. ISV NDMP agent
d. Gateway server

The media server uses the appropriate protocol to read the data from the File Persona and writes it to the
target.

For more information, see Chapter 4, section HPE StoreServ File Persona Share Backup.

19. What is the target use case for HPE StoreOnce Catalyst remote site replication?

a. Data protection of StoreAll Gateways
b. Transfer of data from a branch office to the main data center
c. Automated management of local backup and offsite backup copies

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d. Disaster tolerance, business continuity, and long-distance replication

The typical usage of HPE StoreOnce Catalyst remote site replication is transferring data from a branch
office to the main data center or copying data between sites.

For more information, see Chapter 4, section HPE StoreOnce Catalyst remote site replication.

20. What does the NDMP protocol achieve in backup and disaster recovery environments? (Select two.)

a. It removes the need to transport data through the backup server.
b. It enables long-distance replication through incompatible gateways.
c. It securely transports data encryption keys over an unprotected LAN.
d. It enables automatic data archiving from StoreServ arrays to StoreEver without using specialized

archival software.
e. It controls data backup and recovery communications between the primary and secondary

storage in a heterogeneous environment.

NDMP is an open protocol used to control data backup and recovery communications between the
primary and secondary storage in a heterogeneous network environment.

The NDMP protocol transports the data between the NAS devices and the backup devices. This
removes the need for transporting the data through the backup server itself, thus enhancing speed and
removing load from the backup server.

For more information, see Chapter 4, sections HPE StoreAll backup to HPE StoreEver tape storage
with Symantec NetBackup and HPE StoreServ File Persona software NDMP backup.

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