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Oracle

Franck Pachot

Recovery in the ☁ with Oracle Autonomous Database

By | Cloud, Oracle | No Comments

By Franck Pachot . I’ll start this series with the Oracle Autonomous database but my goal is to cover the Point In Time recovery for many managed databases in the major cloud providers. Because I’ve seen lot of confusion about database backups (see What is a database backup (back to the basics)). On one side, in a managed database, we should not have to care about backups, but only about recovery. The way it is…

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Franck Pachot

AWS DynamoDB -> S3 -> OCI Autonomous Database

By | AWS, Cloud, Oracle | No Comments

By Franck Pachot . I contribute to multiple technologies communities. I’m an Oracle ACE Director for many years, and I also became an AWS Data Hero recently 🎉. I got asked if there’s no conflict with that, as Amazon and Oracle are two competitors. Actually, there’s no conflict at all. Those advocacy programs are not about sales, but technology. Many database developers and administrators have to interact with more than one cloud provider, and those…

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Mouhamadou Diaw

Oracle Grid Infrastructure on Windows With 2 Nodes

By | Database Administration & Monitoring, Oracle | No Comments

Oracle Grid Infrastructure can be also installed on Windows server. In this blog I am explaining how this installation can be done. I am going to install an environment with to nodes. Oracle 19c is being used. We have two servers winrac1 : winrac2 : with the same characteristics I would like to note that it is just a test environment on virtual machines on VirtualBox. I did not have any dns server and I…

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Franck Pachot

NoSQL and SQL: key-value access always scale

By | AWS, Cloud, NoSQL, Oracle | 4 Comments

By Franck Pachot . I have written about some NoSQL myths in previous posts (<a href="https://blog.dbi-services.com/rdbms-scales-the-algorithm/" rel="noopener noreferrer" target="_blank"4here and here) and I got some feedback from people mentioning that the test case was on relatively small data. This is true. In order to understand how it works, we need to explain and trace the execution, and that is easier on a small test case. Once the algorithm is understood it is easy to infer…

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Mouhamadou Diaw

Oracle 19c Grid Infrastructure for a cluster

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

In this previous blog , we deal with Oracle Restart and ACFS. We saw that using ACFS with Oracle Restart will require some manual tasks. The solution is to install a Grid Infrastructure for a cluster, even if we are only using one node. I am using the same configuration -Oracle 19c -Oracle Linux Server 7.6 -Kernel 4.14.35-1902.2.0.el7uek.x86_64 As we are going to install a GI for a cluster, we will need -Public IP: 192.168.2.21…

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Jérôme Dubar

ODA 19.9 software release is out

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

Introduction 6 months after the 19.6, the first 19c production release, here comes the 19.9 Oracle Database Appliance patch with major improvements. Will my ODA supports this 19.9 patch? First, the 19.9 release will be the same for all ODAs, as usual. Like 19.6, the oldest ODA compatible with this release will be the X5-2. Don’t expect to install 19c on older models. X4-2 is stuck to 18.8, X3-2 is stuck to 18.5 and V1…

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Mouhamadou Diaw

Oracle Restart 19c and ACFS

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

In this blog we are going to install an Oracle Restart 19c with ASM Filter Driver (AFD). I am using following configuration -Oracle 19c -Oracle Linux Server 7.6 -Kernel 4.14.35-1902.2.0.el7uek.x86_64 Once the Oracle Restart installed, I will create an ACFS filesystem We will have to configure following disks for AFD -/dev/sdc -/dev/sdd The Oracle downloaded software was unzipped to the GRID_HOME [[email protected] u01]$ unzip -d /u01/app/19.0.0.0/grid LINUX.X64_193000_grid_home.zip After setting the variables ORACLE_HOME and ORACLE_BASE, we…

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Jérôme Dubar

Disk usage on ODA – Free MB and usable MB

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

Introduction Oracle Database Appliances rely on ASM to manage disk redundancy. And ASM is brilliant. Compared to RAID, redundancy is managed at the block level. For NORMAL redundancy, which is similar to RAID1, you need at least 2 disks, but it can also work with 3 disks, 4 disks, 5 disks and so on. There is no need for parity at the disk level. HIGH redundancy, which does not exist in RAID technology, is basically…

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Jérôme Dubar

Oracle Database Appliance vs Oracle Cloud Infrastructure

By | Cloud, Database Administration & Monitoring, Database management, Development & Performance, Hardware & Storage, Operation systems, Oracle | No Comments

Introduction Oracle Database Appliances are very popular these days. And not only among new customers for this kind of engineered systems. Almost all customers already using old generation ODAs are renewing their infrastructure by choosing again ODAs, meaning that the solution is good enough and probably better than anything else. But now, public clouds are a real alternative to on-premise servers, and Oracle Cloud Infrastructure is a solid competitor vs Amazon and Azure public clouds….

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