Choosing a RAID level for a storage server
Eight 12 TB drives give you 96 TB raw and four sensible ways to arrange them. What each level costs in capacity, what it buys in redundancy, and how long a rebuild really takes.
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Anleitungen und Referenzmaterial für den Serverbetrieb in einem Netz mit unlimited Traffic — Konfiguration, Kapazität, Transfers und die Fragen, die unsere Ingenieure am häufigsten beantworten. Die Artikel selbst erscheinen auf Englisch.
How much bandwidth do you actually need?
Port tiers are sold in Gbps, but workloads arrive in viewers, backup windows and downloads per hour. The arithmetic that turns one into the other, with no rounding in our favour.
How to reinstall your OS over IPMI
Every dedicated machine ships with out-of-band access, so a reinstall is yours to run at 3 a.m. without a ticket. The order of operations, and the three places it usually goes wrong.
How to secure a new dedicated server
The first fifteen minutes after handover: a real user account, key-only SSH, a firewall that defaults to closed, and updates that install themselves.
How to verify your port speed
Measure what your server is actually delivering, and raise the kernel defaults that cap a multi-gigabit link before you blame the network.