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Webinar: Disaster Recovery in the Cloud: Understanding Challenges and Strategies for SQL Server

January 19, 2024 by Jason Aw Leave a Comment

Webinar Disaster Recovery in the Cloud Understanding Challenges and Strategies for SQL Serve

Webinar: Disaster Recovery in the Cloud: Understanding Challenges and Strategies for SQL Server

Register for the On-Demand Webinar

Ensuring high availability (HA) and disaster recovery (DR) in the cloud could be a challenge for many organizations. Challenges associated with HA/DR in the cloud include the intricacies of utilizing various tools across different cloud vendors, data sovereignty considerations, compliance challenges, and ongoing cost management.

This webinar will discuss ways to address those challenges, emphasizing the importance of redundancy and failover for uninterrupted services and data protection and explore common misconceptions about cloud resilience and the need for a robust backup and DR strategy.

Reproduced with permission from SIOS

Filed Under: Clustering Simplified Tagged With: Cloud, disaster recovery, failover clustering, High Availability and DR, SQL Server, Windows

US National Capital Region Protects Critical Emergency Dispatch Services with SIOS DataKeeper

January 9, 2024 by Jason Aw Leave a Comment

US National Capital Region Protects Critical Emergency Dispatch Services with SIOS DataKeeper

US National Capital Region Protects Critical Emergency Dispatch Services with SIOS DataKeeper

SIOS DataKeeper Protects Critical CAD-EX CAD2CAD Software on SQL Server in Azure

Until recently, dispatchers used computer-aided dispatch (CAD) systems that presumed the likely whereabouts and availability of units in neighboring jurisdictions, but to request dispatch, they had to call those neighboring agencies on a dedicated phone line to validate actual unit location and availability. This process slowed response times and did not give first responders access to critical incident details that may be available from the dispatching agency.

To improve efficiency, NCR agency leadership and Emerging Digital Concepts (EDC) collaborated to create the Data Exchange Hub (DEH) – a data exchange and functional interoperability platform designed to provide member NCR emergency services agencies with secure access to data and applications. They used the National Information Exchange Model (NIEM) to ensure the interoperability of systems, communications, and procedures.

The DEH has become a national model of efficient regional cooperation in emergency response. Ensuring Efficient Emergency Dispatch Services for National Capital Region SIOS DataKeeper Protects Critical CAD-EX CAD2CAD Software on SQL Server in Azure.

The primary DEH information exchange is the CAD-to-CAD (C2C) Exchange, which enables dispatchers in all NCR DEH agencies to immediately understand front-line resource locations, resource availability, and to share up-to-date information on related incidents in all C2C Exchange connected CAD systems in member jurisdictions.

The NCR DEH C2C Exchange uses a Microsoft SQL Server database operating on Windows Servers and is deployed in the Azure Commercial Cloud. Given the critical nature of these systems, the DEH demanded high-availability data protection for the C2C Exchange platform Failover Clustering without Added Complexity In a traditional Windows high-availability (HA) environment involving a database, two or more database instance nodes are configured in a Windows Server failover cluster with shared storage (typically a SAN).

The database is operational on the primary node with HA failover software monitoring its operation. If an issue is detected, the HA software orchestrates failover of the database operation to the standby, secondary node(s) in the cluster. In the cloud and other environments where shared storage is not available nor cost-effective, replication is used to create a SANless cluster by synchronizing local storage on each of the cluster nodes so that, in the event of a failover, the secondary node can continue to operate with current data.

In the earlier stages of the project, the NCR IT team had deployed the C2C Exchange platform in a number of environments. This included an on-premises Fairfax County data center and subsequently in multiple third-party, national and local hosting provider environments. In these environments, the C2C Exchange database deployment architecture used Microsoft SQL Server Enterprise Edition and Always On Availability Groups.

As the project expanded, the NCR IT team was driven to take advantage of advancing cloud technologies and to deploy the C2C platform to the Azure Commercial Cloud. The Cloud offered the flexibility and service levels needed to manage the C2C platform in a more virtual environment.

The Azure Cloud also allowed the NCR to deploy a more cost-effective, high-availability, database clustering solution to deliver C2C Exchange application data confidently while simultaneously reducing the higher licensing costs associated with SQL Server Enterprise Edition.

The Solution

The NCR DEH C2C Exchange began employing the SIOS DataKeeper Cluster Edition software to create SANless clusters to protect their C2C Exchange data availability in Azure Commercial Cloud. The software runs on a two-node active-passive Windows Server Failover cluster configuration utilizing SQL Server Standard Edition with Always On Failover Clustering.

The SIOS DataKeeper software uses bandwidth-efficient, host-based, block-level replication to synchronize local storage on all database cluster nodes. If an application availability issue is detected, operation is automatically moved to the secondary node with no manual intervention required. The service levels guaranteed by cloud vendors ensure hardware operability but they do not include software and networking-related causes of application downtime.

The Results

The NCR DEH C2C Exchange has been using the SIOS DataKeeper Cluster Edition software in the Azure Commercial Cloud for more than two years. Participation in the interoperability program has grown. In addition to the initial members, the program now includes the Metro Washington Airports Authority (MWAA), Virginia Counties of Loudoun and Prince William, and Maryland Counties of Montgomery and Prince George’s. The C2C Exchange manages a few thousand shared units and shares data on hundreds of thousands of incidents per year between these participants.

Establishing the high-availability database cluster in the Cloud was fast and straightforward using SIOS DataKeeper Cluster Edition. “We simply installed SIOS DataKeeper to our Windows Server Failover Cluster nodes, configured the local node storage as SIOS managed storage for replication, and it operated seamlessly,” said Greg Crider, EDC Chief Technical Officer and Co-Founder. “An added benefit of the SIOS DataKeeper clustering software is that it enables us to perform regular, rolling software maintenance on the database by transitioning cluster nodes, on-demand, without the need for planned downtime or interruption of service.”

Since implementing SIOS DataKeeper in the NCR C2C Exchange, there have been no downtime issues involving the database or data loss between nodes. Chris Wiseman, EDC President, CEO, and Co-Founder adds, “There have been a few unexpected, uncontrollable networking issues, however, the database failed over quickly and C2C Exchange operation has continued without end users being impacted by prolonged reduction in service. The SIOS DataKeeper software enables us to deliver higher levels of data protection and delivery without needing the more costly SQL Server Enterprise Edition licensing. That adds up to significant, continuing annual savings for our stakeholders.”

The NCR C2C Exchange with SIOS DataKeeper protection is featured by the DHS/SAFECOM in a video link). It was recently put to the tested when three large fires occurred simultaneously at a bank, an apartment complex and a nursing home. The interoperability between CAD systems played a critical role in ensuring fast, efficient response to these incidents.

EDC is broadening C2C Exchange adoption around the United States in other markets with its commercially available NG-CAD-X C2C Exchange product. This functionally advanced C2C offering is being implemented by the City of Denver North Central All-Hazards Region and by greater Southeast Florida. NG-CAD-X is message compatible with the NCR C2C Exchange, deployed in the Azure Government Cloud for CJIS-compliance and law enforcement adoption in addition to fire and EMS ESF, and also implements SIOS DataKeeper Cluster Edition into its database architecture for all of the operational and cost-effective reasons highlighted above. “Strategic partnerships play an important role in providing our customers with the best technology solutions in the marketplace. SIOS DataKeeper in an integral part of our system and is a valuable EDC partner.” said Kevin Konczal, Vice President, EDC.

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Reproduced with permission from SIOS

Filed Under: Clustering Simplified Tagged With: failover clustering, SIOS Datakeeper

Video: SIOS LifeKeeper for Linux v9.7 Adds New HA/DR Capabilities For SAP HANA

May 24, 2023 by Jason Aw Leave a Comment

Video: SIOS LifeKeeper for Linux v9.7 Adds New HA/DR Capabilities For SAP HANA


In this video, our VP of Global Sales and Marketing Margaret Hoagland introduces the HANA Multitarget feature in our latest release of SIOS LifeKeeper for Linux.

Key highlights of this video interview:

SIOS LifeKeeper for Linux is a high availability clustering software that protects critical applications such as SAP, S/4HANA, SQL Server, and Oracle from downtime and disasters. It works by detecting any kind of a failure on the primary node. In the event of a failure, it moves operations to a secondary node where it can continue.

It supports major Linux distributions such as SUSE, Red Hat, Oracle, and Rocky. Customers can standardize their high availability environment and have the same experience regardless of the operating system.

New features and capabilities in SIOS LifeKeeper for Linux v9.7, include HANA Multitarget:

  • It automates the process of failing over to a secondary node plus replicating to a third or even a fourth node for disaster recovery.
  • The secondary node will assume full ownership of the primary node status.
  • It allows customers to have the third node in a geographically separated location.
  • It eliminates the complexity and the manual scripting, which can be quite cumbersome.
  • It uses HANA system replication, so it’s in alignment with SAP best practices.

This feature came directly from customer feedback. SIOS customers have large SAP environments with big HANA databases and complex disaster recovery requirements.

This is a straightforward upgrade process, no caveats. If the customer is extending to a disaster recovery location, they need to consult the SIOS documentation for instructions.

Reproduced with permission from SIOS

Filed Under: Clustering Simplified Tagged With: failover clustering, High Availability and DR, SAP S/4HANA

Video: Ensuring High Availability And Disaster Recovery For Cloud

May 20, 2023 by Jason Aw Leave a Comment

Video: Ensuring High Availability And Disaster Recovery For Cloud

In this video, Jason Huff, our Linux Product Owner, will discuss the current trends in the market, in terms of high availability and disaster recovery.

Highlights of this video interview:

  • Open-source clustering requires highly complicated scripting and is also prone to human error and failure. The manual steps required to ensure that these complicated ERPs or databases are complicated and extremely order-dependent. Therefore, IT teams become hesitant to perform regular maintenance and failover testing.
  • If an application is critical to your day-to-day operations, then you need highly automated, high availability clustering in order to protect it.
  • When a failure happens in the cloud, your application needs intelligent recovery of the failed components and all their dependencies.

Reproduced with permission from SIOS

Filed Under: Clustering Simplified Tagged With: Cloud, failover clustering, High Availability and DR

Video: HANA Multitarget Feature Demo

April 18, 2023 by Jason Aw Leave a Comment

HANA Multitarget Feature Demo

Video: HANA Multitarget Feature Demo

The HANA application recovery kit (ARK) for SIOS LifeKeeper for Linux provides HANA-specific intelligence and automation of manual configuration and administration tasks saving time and eliminating risk of human error. SIOS LifeKeeper auto-validates user input during configuration and automates monitoring, failover, and replication management to deliver reliable failover in compliance with SAP best practices.

Reproduced with permission from SIOS

Filed Under: Clustering Simplified Tagged With: failover clustering, High Availability and DR, SAP S/4HANA

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