Testing DFS Replication with Powershell

DFS Replication (DFS-R) is a fantastic tool in any sysadmins belt when it comes to creating highly redundant and scalable file shares. And yet anyone who has used it, knows that monitoring it can be difficult at the best of times. Windows Server 2012 introduced a number of Powershell commands for DFS-R which help discover Read More…

Best Practices for patching S2D and AzureStack HCI Clusters – Part 1

Overview While spending a lot of time on the Storage Spaces Direct Slack group, one thing that comes up again and again is patching of S2D Clusters, and what is the best way to do it. For this blog series, I’m going to break down the patching best practices into 2 separate scenarios: Offline Patching Read More…

Perform better Storage Spaces Direct maintenance with these Powershell functions

Storage Spaces Direct (S2D) is an incredibly powerful technology, and makes up a huge part of the new AzureStack HCI Solution, however performing maintenance on it can catch out new players. One of the biggest causes of failures while performing maintenance on S2D hosts and clusters, is that the hosts haven’t been correctly put into Read More…

Getting started with Linux Containers on Windows Server 2019

As some of you would have seen, I spent some time last week getting familiar with Linux Containers on Windows Server 2019, and I thought I would share what I did to get it all up and running. Warning: Linux Containers using Hyper-V Isolation is still a work in progress. See here for details Steps Prerequisites Install Docker EE Enable Linux Container Support Deploy a Linux Container (Optional) Install Docker Read More…

You need to change the way you patch S2D Clusters

If you’re running a Storage Spaces Direct (S2D) Cluster, you might have noticed some instability in recent months, specifically when it comes to patching and performing maintenance. Well you’re in luck because 5 days ago, Microsoft released a new KB article that helps explain why you might have seen issues. The scenario targeted by the Microsoft Read More…

Bug when applying KB4038782 September CU to Storage Spaces Direct Clusters

UPDATE(2017-09-19): Microsoft have officially recognized the bug and have a KB describing the symptoms and workaround much like the below. See here: https://support.microsoft.com/en-us/help/4043361/disks-in-maintenance-mode-status-after-september-cumulative-update-kb I was patching our dev cluster the other day and came across a new issue when applying the latest September Cumulative Update (KB4038782), and it seems others on the internet have hit Read More…