What “Guaranteed IOPS” Really Means for Enterprise Workloads

When cloud providers advertise “Guaranteed IOPS,” most people assume:“I’ll always get X IOPS, no matter what.”That interpretation is operationally naïve. The guarantee refers to minimum allocated capability, not to the performance your application will actually experience. 1. Guaranteed IOPS = minimum capability, not magic performance “Guaranteed IOPS” is about capacity, not about how fast every single I/O will feel to your application. Providers typically base their guarantees on ideal, synthetic tests (e.g. 4K random reads/writes, high queue depth). In reality:…

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Test Lustre Cluster Throughput and High Availability options

  • Post category:Cloud

https://www.youtube.com/watch?v=DdlIhfU2VAU In this video (English subtitled), I demonstrate the aggregate performance of a 4-node Lustre cluster (3 OSS + 1 MDS/MGS) and the block volumes provided by Oracle OCI. Of course, this is a functionality test and not a production POC. In addition to understanding and observing the aggregate performance that only 3 active OSS nodes can deliver, I wanted to test 2 failover systems between OSS1 and OSS2 nodes (OSS3 is unpaired and works without failover). 1 - The…

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Optimizing HPC Storage: Lustre Design Strategies for Oracle OCI

In today’s high-performance computing (HPC) landscape, storage solutions that offer speed, scalability, and reliability are essential. Lustre, an open-source parallel file system, is a popular choice for HPC environments due to its capacity to handle large datasets and intensive workloads. When deploying Lustre on Oracle Cloud Infrastructure (OCI), achieving an optimized design that balances performance with cost-efficiency requires careful planning. Let's explore key Lustre infrastructure design patterns tailored for OCI, focusing on strategies to meet diverse storage needs and performance…

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