• Home
  • Help
  • Register
  • Login
  • Home
  • Members
  • Help
  • Search

 
  • 0 Vote(s) - 0 Average

Does VMware have built-in dedup like Hyper-V with ReFS on S2D?

#1
09-25-2022, 08:35 PM
Deduplication in VMware vs. Hyper-V
I know about this subject because I use BackupChain VMware Backup for Hyper-V Backup and VMware Backup, so let’s get into the specifics. VMware does not have native deduplication in the same way that Hyper-V does with ReFS on S2D. What happens is, VMware employs a variety of techniques for storage optimization, but they differ from built-in deduplication, which you might be looking for. With VMware, you can use third-party solutions or leverage storage arrays that have their own deduplication mechanisms, but those are not considered built-in features that you'd enable directly in the VMware software.

For instance, one of the popular storage systems used in conjunction with VMware is a SAN or NAS that supports deduplication. You're addressing a storage concern, yet the actual deduplication functions outside the VMware ecosystem. If you're running VMware on something like vSAN, there's really a focus on managing storage efficiency rather than granting direct deduplication control. vSAN utilizes storage policies and techniques like compression, which can help reduce the overall footprint, but it's not pure deduplication as one might find with ReFS.

Hyper-V and ReFS Deduplication Advantages
With Hyper-V, ReFS supplements the file system rather elegantly, providing deduplication as you create virtual disks. You can easily implement deduplication through Remote Storage Solutions, and as you start utilizing Storage Spaces Direct (S2D), you gain even more capabilities. For you, if you configure a Storage Space with ReFS, then every new VHD or VHDX you create can directly benefit from deduplication. Simultaneously, when you reserve a certain allocation size for your storage space, it enhances efficiency because it actively reduces the amount of physical storage required.

You're also looking at the snapshot functionalities that improve flexibility while using ReFS alongside Hyper-V. With the integration of deduplication, you might find that the performance impact is comparatively lower, particularly in situations where you're regularly spinning up test dev environments. Because ReFS automatically manages file integrity with checksums, you might see fewer data integrity issues over time. On the Hyper-V side of things, this integrated provider markedly aids in streamlining backup processes, too.

VMware's Alternatives and Their Limitations
Since VMware lacks native deduplication, I’d argue it places a heavier reliance on external solutions or features native to tailored storage hardware. They provide you with features like storage I/O control, but those aren't directly equivalent to deduplication. If you're operating in an environment with significant data redundancy, external deduplication can add complexity. You’ll need to manage not only the VMware environment but also your deduplication process, making it a task that could have overlapping responsibilities.

For example, let's say you adopt a third-party deduplication option like Veeam or another heavy-duty solution. While they’re effective, and you’ll realize significant savings in storage, integrating them into an existing VMware infrastructure isn’t as seamless as it appears. Often, I see places get into trouble when they don't adequately scale their deduplication alongside their VMware growth. You want to ensure that your deduplication solution can handle the throughput and I/O demands, or you might wind up with performance bottlenecks during peak times.

Performance Impact of Deduplication Techniques
Thinking critically about performance, deduplication methods can differ widely between Hyper-V on ReFS and VMware environments. ReFS includes mechanisms that streamline certain I/O operations while working with deduplication by cutting down on the need for duplicate storage of similar files, thereby increasing write operations in a more efficient manner. As you grab a basic understanding, it’s clear that Hyper-V can provide better read and write efficiency when deduplication is flowing seamlessly into the architecture.

While VMware's various storage management strategies can provide benefits, the overhead often comes into play during deduplication runs or backup operations. The more you rely on external tools, the more potential latencies you introduce to your system. If you want to run dedup operations outside of the hypervisor, you will also need to factor in operational delays during those runs and the potential for performance hits as the system rearranges data during deduplication tasks.

Use Cases for Deduplication: When It Matters Most
The relevance of deduplication should be based on the use cases in your environment. If you’re in a sector where you're spinning up a lot of copies of virtual machines for testing or development, such as a CI/CD pipeline, deduplication could save you tremendous physical space when using Hyper-V. With VMware, while you can optimize storage through third-party solutions, you’ll need to actively manage those deduplication jobs and schedules to prevent any inconsistencies.

Think about what type of workloads you handle. If you're encountering numerous backups of virtual machines, the demand can escalate your storage use quickly. In this scenario, adopting Hyper-V with ReFS can be a swift win for you. In environments that require frequent snapshots or VM replication, Hyper-V grants you a distinct edge; deduplication effectively compresses all those duplicate snapshots back to a manageable footprint. The proactive nature of how ReFS handles data becomes apparent when it actively prevents redundancy before it occurs.

Integrating Backup Solutions and Their Impact on Deduplication
I find that your approach to backups can also dictate how well these platforms operate with deduplication. Since I use BackupChain, I can tell you that when backing up Hyper-V environments, deduplication is automatically accompanied by efficient data transfer, ensuring that you're only capturing the changes rather than duplicating the entire datasets. For you, this means you can leverage more frequent backups without sacrificing storage space.

On the flip side, if you're integrating offsite backups for VMware, maintaining efficiency during deduplication operations is critical. If you're using VMware’s native tools without additional deduplication mechanisms, the backup and restore performance can deteriorate. External deduplication can sometimes necessitate significant resource allocation that could hinder performance across your environment if not done properly. This modular approach can be efficient, yet the process requires more oversight and management.

Final Thoughts and Introducing BackupChain
It's clear that each virtualization platform comes with its unique strengths and weaknesses concerning deduplication. Hyper-V with ReFS provides a cohesive environment that rolls data management features into one system, enabling a more straightforward configuration and significant advantages for workloads that engage data duplication frequently. In contrast, VMware's approach, while more feature-rich in other areas, necessitates additional configurations and external tools for deduplication, which can lead to complexities that are hard to manage without a proactive strategy.

If you're looking at utilizing either Hyper-V or VMware, it’s essential to assess not only the direct capabilities but also the total operational overhead these functionalities might introduce. For a comprehensive backup strategy in a Hyper-V or VMware environment, I recommend considering BackupChain, as it can suit your needs for both platforms efficiently. It streamlines the backup process while inherently understanding the nuances of each system, giving you a tailored solution that alleviates some of the concerns we discussed regarding deduplication and performance.

Philip@BackupChain
Offline
Joined: Aug 2020
« Next Oldest | Next Newest »

Users browsing this thread: 1 Guest(s)



  • Subscribe to this thread
Forum Jump:

Backup Education VMware General v
« Previous 1 2 3 4 5 6 Next »
Does VMware have built-in dedup like Hyper-V with ReFS on S2D?

© by FastNeuron Inc.

Linear Mode
Threaded Mode