Veritas NetBackup Appliance 容量规划与性能优化指南

需积分: 5 132 浏览量更新于2024-06-22 收藏 2.4MB PDF 举报

"Veritas NetBackup Appliance Capacity Planning and Performance Tuning Guide - 3.1" 本文档是Veritas NetBackup设备容量规划和性能调优指南的第3.1版，旨在帮助用户优化和管理NetBackup Appliance的性能，确保其在IT环境中高效稳定地运行。NetBackup Appliance是Veritas公司提供的集成备份解决方案，集硬件和软件于一体，旨在简化备份流程并提高数据保护的可靠性。在容量规划方面，文档将深入讨论如何预测和分析NetBackup Appliance的存储需求。这包括了解不同工作负载的备份和恢复模式，以及如何根据业务增长趋势来计算所需的存储容量。此外，还会涉及硬件组件（如硬盘、内存和处理器）的选择和配置，以满足预期的工作负载需求。性能调优部分将涵盖监控和分析设备性能的关键指标，如I/O操作、CPU利用率、网络带宽和内存使用情况。通过这些指标，管理员可以识别性能瓶颈，并采取适当的措施进行优化。可能的优化策略包括调整备份策略、配置存储层分层、改善网络设置或升级硬件组件。文档还可能涉及第三方软件的使用，这些软件可能是开源或免费的，Veritas需要提供对这些第三方软件的版权归属信息。用户应关注这些软件的许可证条款，因为它们可能会影响到使用这些组件的权利和义务。此外，文档会包含有关如何处理错误和故障排除的指导，帮助管理员在遇到性能问题时迅速诊断和解决。这通常包括日志分析、性能基准测试和故障转移策略。《Veritas NetBackup Appliance Capacity Planning and Performance Tuning Guide》是Veritas用户管理和优化NetBackup Appliance性能的重要参考资料，它提供了详细的步骤、最佳实践和建议，以确保数据保护解决方案能够适应不断变化的业务需求。通过遵循此指南，IT管理员可以确保其备份基础设施始终保持高效且适应性强，从而有效地保护组织的关键数据。

Table 2-1

Systems to be backed up (continued)

Considerations to be madeSystem

Identify and record the following information, for each database or application

server:

■ Host name

■ Location

■ Operating system and its version

■ Server type and application release numbers

■ Network technology - 10 GB Ethernet, 1 GB Ethernet, or SAN Clients

■ Database types, database engines, and their version numbers

■ Method used to backup these databases

■ Whether the databases or application server can be backed up while they

are online or offline

To backup an online database, you need a NetBackup database agent

specific to the database engine. Recording this information can help you to

identify the various database agents you may require based on your backup

requirements. For the compatibility list of all NetBackup database agents,

see http://www.veritas.com/docs/000006088.

■ Whether you want to backup the entire database or the raw partitions.

If you decide to take databases backups using raw partitions by Snapshot

Client backup, this may result in a backup size equal to the total size of your

raw partition. Identifying this information can help you decide how you would

like to backup your databases

Note: You can use the templates provided in the Template to record database

information to gather backup requirements for your organization.

Databases and Application servers

Identify the following information, about the virtualized infrastructure:

■ Hosts within these virtualized datacenters

■ Operating systems and their versions

■ Type of data stored

■ Type of Hypervisor used

■ Network technology used - 10 GB Ethernet, 1 GB Ethernet, or VADP over

SAN

■ Type of backup performed on these virtualized datacenters- incremental,

full

Virtualized datacenters

See “Analyzing your backup requirements” on page 14.

See “How much data do you want to back up?” on page 17.

See “When should the backup take place?” on page 18.

See “What is the retention period?” on page 20.

16Analyzing your backup requirements

Analyzing your backup requirements

How much data do you want to back up?

When calculating the total amount of data to be backed up consider the current

requirements and the expected growth in the data in the near future. Table 2-2 lists

the considerations to be made for calculating the amount of data to be backed up.

Table 2-2

Calculating the amount of data to be backed up

Additional commentsChecks to calculate the amount of

data to be backed up

■ Calculate the total disk space for each individual system, along with

the space used for databases.

■ Identify the total number of files to be backed up on each system.

■ Calculate the amount of disk space used by a computer system on

their disk drives, shared drives, and so on.

■ You can use the calculated total size to analyze the potential growth

of your system to ensure that your current backup solution

accommodates the growth in backup requirements

■ Perform thorough analysis of the data being protected for at-least

30 days to get an understanding of data types, growth trends and

change rates using the NetBackup Deployment Utility.

Have you computed the total disk space on

each individual system?

Ensure that you have identified and listed all the data types to be

included in the backup. For example, does the data contain text,

graphics, databases, and so on. Each data type contributes to a specific

amount of data in your total backup requirement.

Some of the advantage of identifying the data types to be backed up

are listed below:

■ Based on this classification you can identify the amount of data

collected under each type, this calculated amount can help you

compute the expected growth in data in the near future.

■ The other advantage of identifying data types can help you decide

upon the relevance and priority of backing up a particular data type.

Have you identified and added all the data

types included in the backup?

Identify how much amount of data from your total capacity is

compressible or not. Based on this information you can ascertain the

amount of space to be allocated to backup data that is compressible

and to data that is incompressible.

How compressible is the data?

Identify if you want to encrypt the data during backup. Based on the

level of security applicable to the data being backed up this decision

can be taken.

Note: You will also need to consider the additional time encrypted

backups may take. Based on which your backup schedules will get

affected.

Will the data be encrypted?

17Analyzing your backup requirements

Analyzing your backup requirements

Table 2-2

Calculating the amount of data to be backed up (continued)

Additional commentsChecks to calculate the amount of

data to be backed up

Ensure that you consider the amount of data stored on these repositories

only once, if you use storage replication or disk mirroring techniques.

Have you added the space on mirrored disks

only once?

Ensure that you add the amount of data stored on all the database

management systems maintained in your organization.

Have you added the size of your database

backups to your final calculations?

Understand the data protection requirement for the data to be backed

up, like the SLA, disaster recovery, and Backup retention and so on.

What are your data protection requirements?

Create an independent test-backup environment to ensure that your

production environment will work with the changed backup solutions.

The test-backup environment helps to keep in study the effects of a new

backup solution and of the changes made to the hardware and the

software infrastructure over a period of time

Have you added the requirements of the

test-backup environment?

Identify the annual data growth factor to calculate capacity increase

over years.

Have you added any resulting growth factor

to your total backup solution?

Ensure that you have computed the growth in amount of data in the

next six months to a few years. Based on the expected growth you can

identify the strategy to expand your existing storage configurations, as

required.

Have you computed the amount of data you

will need to backup in the next six months to

a few years from now?

See “When should the backup take place?” on page 18.

See “Analyzing your backup requirements” on page 14.

See “When should the backup take place?” on page 18.

See “What is the retention period?” on page 20.

When should the backup take place?

To correctly size and configure your backup solution, you must decide on the type

and frequency of your backups. When considering a backup schedule you need to

consider the following checks:

Table 2-3

Schedule a backup

Additional commentsChecks to be performed

The size calculation and deduplication ratio for taking full backups differ

from the size calculation and deduplication ratio required for an

incremental backup.

Will you perform daily-incremental backups?

18Analyzing your backup requirements

Analyzing your backup requirements

Table 2-3

Schedule a backup (continued)

Additional commentsChecks to be performed

When you determine this information helps in calculating the storage

capacity requirements for over longer period of time. The size calculation

and deduplication ratio for taking full backups differ from the size

calculation and deduplication ratio required for an incremental backup.

When will you perform a full backup?

■ Weekly

■ Bi-weekly

■ Monthly

Considering that it takes 2 seconds / 3 seconds per job, it means that

approximately ~15000 jobs per backup window (1000 per hour) are run.

If the job count exceeds the 2-second or 3-second rule, you may need

to consider increasing the backup window or setup a new domain.

Also, the number of jobs is limited by the total number of streams that

appliance can take and also on the total throughput of the deduplication

storage on the appliance.

How many jobs will be run per day?

The length of a window dictates several aspects of your backup strategy.

For example, you may want a larger window of time to back up multiple,

high-capacity servers.

What is the window of time that is available

to complete each backup?

In some scenarios you may want to only use AdvancedDisk for backup.

An AdvancedDisk is the normal disk backup, performed without any

deduplication.

Deciding on whether you want to configure a deduplication solution can

help you opt for a mix of MSDP and AdvancedDisk.

Would you want to configure a deduplication

solution to take backups?

NetBackup Accelerator uses a platform and file system independent

track log to intelligently detect changed files and send the changed

segments from those files to media server. These changed segments

are written to a supported storage pool in the NetBackup appliance.

Although the primary benefit from NetBackup Accelerator is for

performing full backups, it also reduces a subset of costs in running

incremental backups.

Would you want to consider using the

advanced NetBackup features such as

NetBackup accelerator?

The NDMP (Network Data Management Protocol) is used along with

NetBackup Accelerator to perform backup and recovery. The NetBackup

appliance supports NDMP stream handlers for EMC Celerra and NetApp

which results in very high deduplication rate. Using Accelerator we can

protect shares as mounted file systems. However, this is not a

comprehensive backup of filers.

Would you be adopting NDMP to perform

backups?

The backup schedule is greatly affected if the backup is run locally or

is transferred to an off-site location. The time to transfer a local backup

to the off-site location will need to be estimated and considered at the

time of scheduling a backup.

Do you plan to run an Off-site backup or

Local backup?

19Analyzing your backup requirements

Analyzing your backup requirements

Table 2-3

Schedule a backup (continued)

Additional commentsChecks to be performed

Determining the total number of systems that are local or remote can

help determine the backup cycles.

Is the computer system local or remote?

This can help to reduce the time it takes to initiate certain operations.

However, user-directed operations can also result in higher support

costs and the loss of flexibility in storage allocation and usage for

backups. User-directed operations can monopolize media and tape

drives when you most need them. They can also generate more support

calls and training issues while the users become familiar with the new

backup system.

Do you want to allow the users to run the

backups and restores for their computer

systems?

Identify the type of networks you plan to use for scheduling backups.

Based on the amount of data that you want to back up and the frequency

of those backups, you can also consider installing a private network for

taking backups. Identifying this information can help you account for

the time required to perform the backups over a network and select the

best time period when the backup should be taken

Note: It is recommended that you use SAN Client and dedicated HBA

on the NetBackup client for taking backups.

Do you plan to back up any system over a

network?

Identify the backup expiration time period for each of your policies, thus

determining the possible restore options. For example, one of the

commonly adopted policies is to expire your incremental backups after

2 weeks or 1 month and your full backups after 6 months. With this

policy, you can restore any daily file change from the previous weeks

or month and restore data from full backups for the previous 6 months

What is your policy for backup expiration?

See “What is the retention period?” on page 20.

See “How much data do you want to back up?” on page 17.

See “What do you want to backup?” on page 14.

See “Analyzing your backup requirements” on page 14.

What is the retention period?

Now that you have identified what data to backup and how much data is to be

backed up, you now need to identify the length of the retention period for your

backup. Retention period is the time period during which data is stored and

maintained in a backup system. Upon the completion of the retention period the

retained data is finally disposed.

20Analyzing your backup requirements

Analyzing your backup requirements

剩余152页未读，继续阅读

weixin_40191861_zj

粉丝: 85
资源: 1万+

Veritas NetBackup Appliance 容量规划与性能优化指南

NetBackup Appliance Capacity Planning and Performance Tuni

NetBackup Appliance Capacity Planning and Performance Tun

NetBackup Appliance Capacity Planning and Performance T

在Veritas NetBackup Appliance中配置SNMPTrap以监控备份操作的状态有哪些关键步骤？请结合《Veritas NetBackup Appliance SNMP Trap Reference Guide》给出具体示例。

如何在Veritas NetBackup Appliance中配置SNMPTrap以监控备份操作的状态？请提供配置步骤和示例。

Veritas NetBackup 5240 Appliance在2019年的更新中引入了哪些创新硬件特性以及产品功能改进？

Veritas NetBackup 5240 Appliance在2019年更新中有哪些新的硬件功能和产品特性？

为什么Veritas NetBackup在备份过程中会出现'Error 71: none of the files in the file list exist'错误，并该如何解决？

在Veritas NetBackup执行备份时遇到'Error 71: none of the files in the file list exist'错误的具体原因是什么，以及如何进行故障排除？

在使用Veritas NetBackup进行数据备份时，遇到'Error 71: none of the files in the file list exist'错误的可能原因有哪些？应采取哪些措施进行排查和解决？

最新资源