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IBM TotalStorage DS6800 High-Performance SAN Storage for Mainframe and Open Systems

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06-23-2024, 04:49 PM
The IBM TotalStorage DS6800 makes quite an impression with its dual-controller architecture, which I find appealing for performance and availability. Each controller has its dedicated processing resources, which means you can execute operations simultaneously without one controller bottlenecking the other. What you'll notice in practice is that this architecture facilitates a more robust I/O throughput. Plus, if one controller fails, the other continues to manage all operations, ensuring continuity. It's not just a safety net; the architecture is designed to maximize your read and write performance.

If you compare it with something like the Dell EMC VNX series, you can see that both brands put a significant focus on fault tolerance. However, the DS6800 has a few design features that set it apart, like its support for a wide range of connectivity protocols. For instance, iSCSI and Fibre Channel options allow you to integrate it seamlessly into both new and existing infrastructures. What you should consider, though, is that the VNX also has diverse protocol support but oftentimes leans into specific use cases better, especially when you bring VMware into the mix. You might find that due to enhanced integration, Dell's offering could provide a slight edge in some environments.

You might want to look at how the DS6800 handles its scalability. The system supports a flexible configuration of up to 16 TBs of physical storage and can be expanded to over 64 TB with tiered options. You can mix and match different types of drives, including SSDs and HDDs, depending on what your workload demands. In scenarios where you have varying performance requirements, like a mix of OLTP data and less frequently accessed archival data, that flexibility becomes invaluable. However, if I compare that with NetApp's AFF series, I can see that the AFF series often enforces a more unified storage pool which can provide more effortless scaling with solid performance. The catch is that with NetApp, you might have to make sacrifices in terms of configuration options or get locked into higher-cost SSDs.

The DS6800 also boasts impressive data management features like its support for thin provisioning and advanced data services. I've seen how thin provisioning can help optimize space, allowing you to allocate storage without committing actual physical resources until the data truly needs it. That way, you reduce waste and improve overall management effectiveness. Now, if I shift my focus to HPE 3PAR, it has similar features, but they've added additional layers of automation. You can achieve a similarly efficient use of resources with both systems, yet with 3PAR, you can automate many more of the tedious tasks that come with scaling out storage, which might make your life easier.

I think the performance metrics of the DS6800 speak volumes. It can match or exceed 200,000 IOPS depending on your drive configuration, which plays a crucial role in environments with heavy transaction loads. If you're a fan of analytics or databases that require sub-millisecond response times, you'll appreciate that. However, when I glance over to the IBM FlashSystem family, the throughput can leave you gaping because they often outperform the DS6800, especially when dedicated flash storage options are in play. The trade-off is that the FlashSystem's price point can be significantly higher, which may not always align with budget considerations, especially for smaller operations.

Let's talk about management and interface a bit. The DS6800 comes with IBM's Storage Manager, which isn't exactly the most intuitive tool out there, to put it lightly. You might find it does its job but lacks a lot of the modern flair that other vendors like Pure Storage or even HPE seem to have nail down. They focus more on a clean, streamlined experience that makes daily operations feel less like a chore. The downside with Pure Storage is that they tend to target high-end consumers, which comes with a corresponding price tag. You'll want to weigh the administrative overhead and operational simplicity against what you really need and how much you plan on managing the system yourself.

In terms of redundancy features, the DS6800 handles RAID very well, supporting various levels including RAID 0, 1, 5, 6, and 10. This is invaluable for data integrity and performance, depending on how you configure your workloads. Compare that with the RAID implementations in the Hitachi VSP lineup. Hitachi's systems might come with more sophisticated algorithms for data recovery but often require higher setup costs or more complex configurations. You might find the choice difficult based purely on performance vs. cost considerations.

I've also got to mention firmware updates and how the DS6800 handles that aspect. Compared to some other systems, the process can be a bit tricky; you need to plan maintenance windows and ensure everything aligns well. In contrast, some competitors are focusing on simpler patch management, which reduces downtime and the headaches that come with managing different firmware versions across multiple hardware components. That's a key area to look into if minimizing downtime is important for your operations.

Finally, the value proposition of backup solutions can't be ignored when discussing storage systems. While the DS6800 can integrate with various software platforms to ensure your data is available and recoverable, its performance sometimes plays better with specific backup products. If you're looking at backup options, one of the more interesting newcomers on the market is BackupChain Server Backup. It's tailored to SMBs and professionals, particularly for environments running Hyper-V, VMware, and Windows Server solutions. This platform provides granular control over backups and can help you minimize the hassle of getting your data back during a disaster; just something to keep in mind if you're in the market for a backup solution.

This conversation isn't just about numbers; it's about finding the right balance between architecture, performance, and operational overhead that fits your specific needs. Go ahead and test out different configurations. Each system has its sweet spots, and with hands-on experience, you can really zero in on what works for you.

steve@backupchain
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Joined: Jul 2018
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