Two TrueNAS servers, one rack — the CORE-and-SCALE split I never designed
Two TrueNAS servers. Same rack. One's on CORE, one's on SCALE. If someone asked me why, the honest answer isn't a design decision. It's a series of ar…
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Software RAID vs Hardware RAID for NVMe: The PCIe Bottleneck
For two decades, SysAdmins operated under a strict golden rule: "Always use a dedicated Hardware RAID controller to protect your disks." This was an i…
Deploying SFTPGo as an Azure Storage SFTP Alternative on Linux
Azure Storage SFTP is Microsoft's managed file transfer service on top of Azure Blob Storage, convenient, but billed continuously per endpoint (roughl…
Why Listing Objects Is One of the Hardest Operations in Cloud Storage
This is Part 4 of the Object Storage Internals series. Previous articles covered core mental models, metadata bottlenecks, and consistency tradeoffs. …
SAN vs NAS for your home lab: which used storage to buy
If you're building out a home lab and need shared storage, you'll eventually hit the SAN vs NAS question. Both solve "storage that multiple machines c…
Pro File Uploads in Rails 8: Speed and Scalability with Direct Uploads
Imagine a user trying to upload a 100MB video or a high-resolution photo to your app. If you use the standard Rails file upload, that file travels fro…
Как строить отказоустойчивые кластеры Kubernetes: краткий разбор от команды VK Cloud
Миграция в облако и переход к микросервисной архитектуре сделали Kubernetes (k8s) де-факто стандартом для управления контейнерами. По данным 2025 года…
Как строить отказоустойчивые кластеры Kubernetes: краткий разбор от команды VK Cloud
Миграция в облако и переход к микросервисной архитектуре сделали Kubernetes (k8s) де-факто стандартом для управления контейнерами. По данным 2025 года…
Longhorn Volume Health: The Gap Between 'Healthy' and Actually Working
I once spent four hours debugging a PostgreSQL pod that was stuck in a crash loop with Input/output error across every single log line. I opened the L…