EMC ISM Backup and Archive 教程

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"ISM_Backup and Archive - EMC Original Storage Backup and Archive 学习资料" 这篇学习资料专注于EMC的备份和归档技术，是ISMv3课程的16个模块之一，发布于2015年。EMC是全球知名的存储解决方案提供商，其备份和归档解决方案在IT行业内具有重要地位。此资料可能涵盖了EMC存储系统的基本概念、工作原理、最佳实践以及如何实施高效的数据保护策略。在备份和归档领域，理解数据保护的重要性至关重要。备份是为了防止数据丢失，确保在硬件故障、软件错误或恶意攻击后能够恢复数据。而归档则是将不再频繁访问但需要长期保存的数据转移到成本更低的存储介质上，以满足法规遵从性和长期数据保留需求。该资料中可能详细介绍了EMC的特定产品，如Data Domain、NetWorker或者Avamar等，这些产品提供了集成的备份和归档解决方案，支持各种数据源，包括物理服务器、虚拟环境、数据库、邮件系统等。它们通常具备快速备份和恢复能力，并且能够进行数据去重，以减少存储空间的需求。文档还提醒用户，由于技术的快速发展，此出版物中的信息可能已经发生了变化，因此使用时需要考虑最新的更新或官方发布的版本。此外，EMC不对其提供的信息做出任何明示或暗示的保证，用户在使用EMC软件时需要有适用的软件许可证。文档中提到的商标、logo和服务标记（统称为“商标”）均属于EMC公司或其他相关方的财产，未经所有者书面许可，不得擅自使用。这表明EMC对其知识产权的保护非常重视。这份"ISM_Backup and Archive"资料对于理解EMC的备份和归档技术，以及如何利用这些工具来保护和管理企业的关键数据，是非常有价值的。它可能包括了实际操作指南、案例研究以及如何优化备份策略等内容，对于IT管理员和数据保护专业人员来说是重要的参考资料。

Synthetic backup: Another way to implement full backup is synthetic backup. This method

is used when the production volume resources cannot be exclusively reserved for a backup

process for extended periods to perform a full backup. A synthetic backup takes data from

an existing full backup and merges it with the data from any existing incrementals and

cumulatives. This effectively results in a new full backup of the data. This backup is called

synthetic because the backup is not created directly from production data. A synthetic full

backup enables a full backup copy to be created offline without disrupting the I/O operation

on the production volume. This also frees up network resources from the backup process,

making them available for other production uses.

Incremental forever backup: Rather than scheduling periodic full backups, this backup

solution requires only one initial full backup. Afterwards, an ongoing (forever) sequence of

incremental backups occurs. The real difference, however, is that the incremental backups

are automatically combined with the original in such a way that you never need to perform

a full backup again. This method reduces the amount of data that goes across the network

and reduces the length of the backup window.

ISM v3 Module 13: Backup and Archive

Organizations need reliable and efficient backup and recovery solutions to meet the required service

levels. Organizations need to understand some of the key backup and recovery considerations while

implementing the solutions. Today, business applications typically run on virtual machines (VMs).

Multiple VMs are hosted on single or clustered physical compute systems. The virtualized compute

system environment is typically managed from a management server, which provides a centralized

management console for managing the environment. The integration of backup applications with the

management server of virtualized environment is required. Advanced backup methods require the

backup application to obtain a view of the virtualized environment and send configuration commands

related to backup to the management server. As the organization moves towards third platform

technologies, it is important for the backup applications to integrate with various business applications

along with third platform applications (social, mobile, analytics, and cloud) to protect the business

data.

It is also important to ensure that most of the backup and recovery operations need to be automated.

Typically, the BC processes are automated through orchestration to reduce the manual intervention.

With the ability to rapidly add VMs, the solution needs to automatically provision backup to the new

VMs. The solution should recognize when a new VM is created and apply an appropriate protection

policy automatically. Similarly, when a VM is removed from the environment, the protection policy

should be removed as well.

IT environment has large volume of redundant data. Backing up of redundant data would significantly

impact the backup window and increase the operating expenditure. Backup applications should

support deduplication techniques to overcome these challenges. Deduplication also provides the

extended retention of backup copies. Backup solutions should also support WAN optimization

techniques, to reduce the network bandwidth requirement, when taking remote office backup.

ISM v3 Module 13: Backup and Archive

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EMC ISM Backup and Archive 教程

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