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Check This Out! (CTO!) Guide (May 2023)

Hi everyone! Brandon Wilson here once again with this month’s “Check This Out!” (CTO!) guide. These posts are only intended to be your guide, to lead you to some content of interest, and are just a way we are trying ... continue reading

New Cluster-Wide Control For Virtual Machine Live Migrations In Windows Server and Azure Stack HCI

Applies to:  Windows Server 2022, Azure Stack HCI, version 21H2 and later versions of both  Overview:  There is a new enhancement in the ability to manage the number of parallel live migrations within a cluster, making it easier to change ... continue reading
SIOS installer

How to cluster SAP ASCS/SCS with SIOS DataKeeper on VMware ESXi Servers

This article describes the steps you take to prepare the VMware infrastructure for installing and configuring a high-availability SAP ASCS/SCS instance on a Windows failover cluster by using SIOS DataKeeper as the replicated cluster storage. Create the ASCS VMs For ... continue reading
When running SQL Server on Azure Virtual Machines using Azure Hybrid Benefit, you are entitled to license one additional passive secondary instance of SQL Server for High Availability for free and one additional passive instance of SQL Server for Disaster Recovery for free.

New SQL Server on Azure Virtual Machines and Azure SQL Managed Instance DR benefits

Customers who are running their SQL Server workloads using SQL Server on Azure Virtual Machines and Azure SQL Managed Instance are now eligible for new high availability (HA) and disaster recovery (DR) benefits. These are in addition to existing HA/DR ... continue reading
How to use Azure Site Recovery (ASR) to replicate a Windows Server Failover Cluster (WSFC) that uses SIOS DataKeeper for cluster storage

How to use Azure Site Recovery (ASR) to replicate a Windows Server Failover Cluster (WSFC) that uses SIOS DataKeeper for cluster storage

Intro So you have built a SQL Server Failover Cluster Instance (FCI), or maybe an SAP ASCS/ERS cluster in Azure. Each node of the cluster resides in a different Availability Zone (AZ), or maybe you have strict latency requirements and ... continue reading
Network ATC: What's coming in Azure Stack HCI 22H2

Network ATC: What's coming in Azure Stack HCI 22H2

When we first released Network ATC, we greatly simplified the deployment and on-going management of host networking in Azure Stack HCI. Whether it was the simple yet powerful deployment experience, a “that was easy” cluster expansion process, or increased reliability ... continue reading

Performance of Azure Shared Disk with Zone Redundant Storage (ZRS)

On September 9th, 2021, Microsoft announced the general availability of Zone-Redundant Storage (ZRS) for Azure Disk Storage, including Azure Shared Disk. What makes this interesting is that you can now build shared storage based failover cluster instances that span Availability ... continue reading
Failover Cluster File Share Witness and DFS

Failover Cluster File Share Witness and DFS

First published on MSDN on Apr 13, 2018 One of the quorum models for Failover Clustering is the ability to use a file share as a witness resource. As a recap, the File Share Witness is designated a vote in ... continue reading
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SQL Server 2019 PolyBase feature High Availability

One of the most exciting aspects of SQL Server 2019 are the enhanced capabilities around the PolyBase feature that enables access to non-SQL Server external data sources through a process referred to as virtualization. The data remains at the external ... continue reading
Multi-zone Windows Server Failover Cluster with shared ZRS disk

Improve availability with zone-redundant storage for Azure Disk Storage

As organizations continue to accelerate their cloud adoption, the need for reliable infrastructure is critical to ensure business continuity and avoid costly disruptions. Azure Disk Storage provides maximum resiliency for all workloads with an industry-leading zero percent annual failure rate ... continue reading