Dell ObjectScale
Dell's Kubernetes-native S3-compatible object storage platform — a container-architecture rebuild of the Dell ECS codebase — and, as of 2026, the second named production platform shipping GPUDirect RDMA KV-cache offloading, merged upstream into vLLM and LMCache.
Summary
Dell's Kubernetes-native S3-compatible object storage platform — a container-architecture rebuild of the Dell ECS codebase — and, as of 2026, the second named production platform shipping GPUDirect RDMA KV-cache offloading, merged upstream into vLLM and LMCache.
ObjectScale is where the KV-cache-on-object-storage pattern reaches enterprise-owned infrastructure: vLLM/LMCache deployments can offload computed KV tensors to a Dell object tier over S3-HTTP or S3-over-RDMA without bespoke integration. Its existence as a *second* vendor deployment (after CoreWeave/Cohere) is what moves the pattern from anecdote toward standard architecture.
- ObjectScale is not a rename of ECS — it's a Kubernetes-native rebuild; Dell ships both on the same codebase for different workload shapes.
- Check the 2026 security-advisory history before deployment: default-credentials and hard-coded-credentials CVEs are fixed only in ObjectScale 4.2.0.0/4.3.0.0+.
extendsDell ECS — same codebase, cloud-native architectureintegrates_withNVIDIA GPUDirect RDMA for S3 / vLLM / LMCache — the upstreamed KV-cache offload pathenablesKV-Cache Disaggregation — S3-compatible target for disaggregated inference stateoptimizes_forPrefill Tax — cache reuse from the object tier
Definition
Dell's Kubernetes-native, S3-compatible object storage platform — a full container-architecture rebuild of the [Dell ECS](/node/dell-ecs) codebase, not a rename — spanning software-defined deployments and the XF960 all-flash appliance. Its 2026 significance for this index: ObjectScale is the second named production platform to ship **GPUDirect RDMA KV-cache offloading** for S3-compatible storage, with the capability merged upstream into vLLM and LMCache.
Enterprises running AI serving want the KV-cache-on-object-storage pattern (proven by the CoreWeave/Cohere deployment) on infrastructure they own. ObjectScale wires the S3-HTTP and S3-over-RDMA paths into the standard open-source inference stack, so a vLLM or LMCache deployment can offload computed KV tensors to a Dell object tier without bespoke integration — bypassing S3-HTTP overhead and using the RDMA fabric directly.
On-prem/hybrid S3-compatible storage for cloud-native workloads, KV-cache offload target for vLLM/LMCache inference fleets, GPUDirect RDMA data paths into Dell storage, upgrades from ECS 3.8.x/4.0.x deployments.
Recent developments
- GPUDirect RDMA KV-cache offload merged upstream into vLLM and LMCache (September 2026). Dell integrated GPUDirect RDMA KV-cache offloading into ObjectScale, supporting both S3-HTTP and S3-over-RDMA paths, with the integration merged upstream into the two leading open-source KV-cache stacks (vendor-published release notes). The second-vendor signal matters more than the feature: treating object storage as a disaggregated, durable memory tier is moving from hyperscaler experiment to standardized enterprise architecture. Per Dell — KV cache offload to object storage: GPU-Direct and upstream.
- Platform baseline: ObjectScale 4.1 + XF960 all-flash appliance. The XF960 delivers up to 300% more read throughput and 42% more write throughput than the previous-gen EXF900; 4.1 added multiple compression modes, TLS 1.3, self-encrypting drives, and push-based event notifications. Security history worth knowing before deployment: the 2026 ECS/ObjectScale advisories (default credentials CVE-2026-22273, hard-coded credentials CVE-2026-40636) are patched in ObjectScale 4.2.0.0/4.3.0.0+ — details on the Dell ECS node. Per ObjectScale 4.1 and XF960 platform announcement.
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scoped_to2implements1extends1integrates_with3enables1optimizes_for1solves1Resources2
Dell's own announcement of the GPUDirect RDMA KV-cache offload and its upstream merge into vLLM/LMCache — the load-bearing source for the second-deployment claim.
Analyst review establishing the ECS-vs-ObjectScale codebase relationship and platform positioning.