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Petre Radut

How to migrate Grid Infrastructure from release 12c to release 18c

By | Application integration & Middleware, Database Administration & Monitoring, Database management, Oracle | No Comments

Oracle Clusterware 18c builds on this innovative technology by further enhancing support for larger multi-cluster environments and improving the overall ease of use. Oracle Clusterware is leveraged in the cloud in order to provide enterprise-class resiliency where required and dynamic as well as online allocation of compute resources where needed, when needed. Oracle Grid Infrastructure provides the necessary components to manage high availability (HA) for any business critical application. HA in consolidated environments is no…

 
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David Barbarin

First steps into SQL Server 2019 availability groups on K8s

By | Cloud, Database management, DevOps, SQL Server | No Comments

A couple of weeks ago, Microsoft announced the first public CTP version of next SQL Server version (CTP2). It is not a surprise, the SQL Server vNext becomes SQL Server 2019 and there are a plenty of enhancements as well as new features to discover. But for now, let’s start with likely one of my favorites: availability groups on Kurbernetes (aka K8s). As far I may see from customers and hear from my colleagues as well,…

 
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Petre Radut

Configure AFD with Grid Infrastructure software (SIHA & CRS) from very beginning.

By | Database Administration & Monitoring | No Comments

Introduction : Oracle ASM Filter Driver (Oracle ASMFD) simplifies the configuration and management of disk devices by eliminating the need to rebind disk devices used with Oracle ASM each time the system is restarted. Oracle ASM Filter Driver (Oracle ASMFD) is a kernel module that resides in the I/O path of the Oracle ASM disks. Oracle ASM uses the filter driver to validate write I/O requests to Oracle ASM disks. In this blog I will…

 
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Petre Radut

Upgrade Oracle Grid Infrastructure from 12.1.0.2.0 to 12.2.0.1.0

By | Database Administration & Monitoring, Database management, Oracle | No Comments

The following blog will provide the necessary steps to upgrade the Grid Infrastructure from 12.1 to 12.2, for a Standalone Server. One of the new features of GI 12.2 is the usage of the AFD (Oracle ASMFD Filter Driver). Assumptions : You have installed Oracle GI 12.1 as grid user You have installed Oracle Database 12.1 as oracle user You have configured the groups asmadmin,asmoper,asmdba You installed oracle-rdbms-server-12cr2-preinstall rpm You patched your Oracle GI to…

 
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Petre Radut

Control File issues on duplicating with non patched Oracle version.

By | Database Administration & Monitoring, Oracle | No Comments

Introduction : RMAN has the ability to duplicate, or clone, a database from a backup or from an active database. It is possible to create a duplicate database on a remote server with the same file structure, or on a remote server with a different file structure or on the local server with a different file structure. For some old and  non patched Oracle versions such as that earlier than 11.2.0.4 , the duplicate (from…

 
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Marc Wagner

Dbvisit Standby Archive Log Daemon

By | Database Administration & Monitoring, Oracle | No Comments

Dbvisit Standby version 8 comes with a nice feature, a daemon, which gives the benefit to send and apply the archive log automatically in the background. Bypassing the system scheduling, the daemon will facilitate customer RPO (Recovery Point Objective) and RTO (Recovery Time Objective) fine tuning. Monitoring to apply logs to the Standby only when needed, will also optimize use of resources. Originally available for the Linux based environments, the feature has been made available…

 
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David Barbarin

Introducing SQL Server on Docker Swarm orchestration

By | Database Administration & Monitoring | No Comments

SQL Server 2017 is available on multiple platforms: Windows, Linux and Docker. The latter provides containerization features with no lengthy setup and special prerequisites before running your SQL Server databases which are probably the key success of adoption for developers. It was my case as developer for our DMK management kit which provide to our customers a SQL Server database maintenance solution on all editions from SQL Server 2005 to SQL Server 2017 (including Linux)….

 
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David Barbarin

24 HOP French edition 2017 – Session videos are available

By | SQL Server, Technology Survey | No Comments

The 2nd edition of 24HOP French Edition 2017 is over and we had great sessions about SQL Server and various topics ( SQL Server 2017 new features, Azure, PowerBI, High Availability , Linux, Hyper-convergence , Modeling …) If you did not attend to this event, you now have the opportunity to watch the videos of the different sessions. From my side, I had the chance to present SQL Server and High Availability on Linux. Hope to…

 
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David Barbarin

SQL Server 2017 high availability and Resumable Online Indexes

By | Database Administration & Monitoring | No Comments

Ensuring data availability is an important part of the high availability design. SQL Server AlwaysOn features including SQL Server FCIs and availability groups address some aspects of the problem but we may also rely on the online operations features to maximize data availability. Indeed, for some high-critical workloads, offline operations during the maintenance phase are not permitted and may contribute to call into question the entire architecture. But have you ever faced an outage from…

 
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David Barbarin

Prochaine édition des 24 HOP 2017 francophone

By | Technology Survey | No Comments

La prochaine édition du 24 Hours of PASS 2017 edition francophone se déroulera les 29-30 juin prochain. Pour rappel le format est simple: 24 webinars gratuits répartis sur 2 jours de 07:00 à 18h00 GMT et en Français. La seule obligation: s’inscrire aux sessions auxquelles vous assisterez. Cela vous permettra également de récupérer l’enregistrement vidéo si vous voulez la visionner à nouveau par la suite. Cette année il y en aura encore pour tous les goûts. Du…

 
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