If two fingerprints are found to be identical, a byte-by-byte comparison is done for all data within the block.
If the byte-by-byte comparison detects identical data, the pointer to the data block is updated, and the duplicate block is removed. Each of the fingerprints is compared to all the other fingerprints within the volume. If two fingerprints are found to be identical, a byte-by-byte comparison is done for all data within the block. If the byte-by-byte comparison detects identical data, the pointer to the data block is updated, and the duplicate block is removed. World-class data management and storage solutions in the biggest public clouds.
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This effect is referred to as cache amplification, and is particularly beneficial with server and desktop virtualization. Volume SnapMirror. When you replicate a deduplicated volume with volume SnapMirror, the target volume automatically inherits the deduplicated state from the source volume. The impact of this effect for VMware was described in a previous article.
The interaction of deduplication with all forms of SnapMirror and SnapVault were also described in a recent article. When a FlexClone volume is created: If the parent FlexClone volume has duplication enabled, the new volume inherits the savings.
The cloned volume inherits the deduplication configuration of the parent volume, such as the deduplication schedule. Deduplication must be started on the cloned volume for full deduplication to continue. Potential space savings and use cases were described in a previous Tech OnTap article. Thin provisioning. Deduplication also works in conjunction with NetApp thin provisioning to maximize space savings. For NAS volumes, configuration is straightforward.
This frequently updated guide covers a broad range of topics including: Configuration and operation Sizing for performance and space efficiency Use with other NetApp technologies Best practices including best practices for use with specific applications including VMware; Microsoft Exchange, SQL Server, and SharePoint; Lotus Domino; Oracle; and others Troubleshooting.
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Tags Find more articles tagged with: compression. Hi Carlos , Thanks for the great article Regards Anil. All Community Forums. Technical Marketing Engineer This month, Tech OnTap is pleased to bring you the second installment of Back to Basics, a series of articles that discuss the fundamentals of popular NetApp technologies to help you understand and get started using them.
This frequently updated guide covers a broad range of topics including: Configuration and operation Sizing for performance and space efficiency Use with other NetApp technologies Best practices including best practices for use with specific applications including VMware; Microsoft Exchange, SQL Server, and SharePoint; Lotus Domino; Oracle; and others Troubleshooting Got opinions about deduplication?
Carlos Alvarez Sr. Technical Marketing Engineer NetApp. Carlos has been working with NetApp since , specializing in storage efficiency with deep-dive expertise in deduplication, data compression, and thin provisioning. With over 20 years of industry experience, Carlos has been called on to create numerous implementation guides, technical white papers, reference architectures, best practices, and solutions guides.
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