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May 11, 2019

Parte lo sviluppo di Skynet : un blog per seguire la sua evoluzione

Come service provider VaiSulWeb ha sempre gestito al proprio interno un numero di tecnologie molto elevato e ci siamo sempre avvalsi di tanti strumenti, a volte più semplici da integrare, altre volte meno. C’è una tendenza molto diffusa oggi nel delegare ai cloud provider ipermassivi come Microsoft Azure o Amazon AWS la gestione di tante tecnologie, soprattutto quelle più complesse e principalmente da parte dei provider più piccoli. A VaiSulWeb abbiamo sempre gestito le nostre infrastrutture proprietarie e non prevediamo di cambiare questa visione che per noi è strategica tuttavia è cambiato lo scenario anche rispetto a pochissimi mesi fa e se prima veniva considerata probabile [...]

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March 7, 2018

Detecting unusual CPU load in Powershell

We recently had a problem on a server since one of its services was randomly experiencing spikes in CPU load that required restarting the service. Such event was happening once in a while and only required a restart. While we were tracking the problem down, we needed a temporary solution that didn’t require us to manually restart the service. Luckily Powershell came to the rescue with a simple script:

$interval = 30 #seconds $counterSample = Get-Counter '\Processor(_Total)\% Processor Time' -SampleInterval $interval $avgLoad = $counterSample.CounterSamples.CookedValue Write-Output "Average CPU load : $avgLoad"

The tricky thing is that we didn’t want to measure [...]

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October 31, 2017

Il file-system ReFS : 4 super-motivi per usarlo sui server (e 2 per non farlo!)

Già dal 2012, con l’introduzione di Windows Server 2012, Microsoft ha presentato ReFS (Resilient File System), un nuovo file system per gli ambienti Windows progettato per i workload moderni e, idealmente, per sostituire NTFS appena possibile. Le prime versioni di ReFS non brillavano per velocità ma con Windows Server 2016 ReFS è diventato il file system raccomandato per workload importanti come i cluster di storage S2D o per le infrastrutture iperconvergenti basate su Hyper-V, promuovendolo ormai senza riserve all’uso in produzione.

Nel mondo di Windows Server è certamente inusuale discutere di file-system alternativi a NTFS, discussioni più comuni nel mondo Linux [...]

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October 22, 2017

With Microsoft giving up on mobile, is the Universal Windows Platform worth the effort anymore ?

A couple of weeks ago, Joe Belfiore confirmed that Microsoft is not “focusing” on Windows 10 Mobile anymore, essentially giving up the whole phone strategy of Microsoft. While Redmond is not officially retiring the platform, Belfiore told us that there will be no new features and no new devices, suggesting to switch to competing platforms. I almost instantly commented that it is a huge error made by Microsoft that had and has the resources to run a niche mobile platform while it waits for “the new generation of mobile devices”, as they call it.

The first casualty of that error could be the Universal Windows Platform (UWP) framework that promised to help [...]

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September 15, 2017

Say hello to next-gen Server Manager: Microsoft introduces project “Honolulu”

Windows sys admins have long relied on the very wide range of tools that Windows, especially its Server versions, made available to manage the operating system. Unlike many think, such tools were not black boxes but they have been built on APIs that were available to developers, in most cases, so that they could write their own tools and access the very same information that Microsoft tools have been providing and also perform the same actions. But the tools themselves were good enough so that admins have been using them in a way or another, even when implementing their own.

Microsoft also provided Server Manager, a tool that in its latest versions allowed to manage multiple [...]

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