Infrastructure at your Service

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Jérôme Dubar

Jérôme Dubar

Statspack with Oracle Database 19c and Multitenant

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

Introduction When it comes to performance analysis on Oracle databases, everybody think about Diagnostic Pack. This is a very complete tool and it brings much more metrics than a DBA can analyze. But there is a big drawback with this tool: it’s not included in Standard Edition and it’s an option with Enterprise Edition. If you don’t have this tool, it’s still possible to do performance analysis using older Statspack tool. Statspack is nothing else…

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Jérôme Dubar

Oracle Database Appliance 19.13: what’s new and how to patch?

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

Introduction Patch 19.13 is now available on ODA. It’s time to test it. What’s new? This version brings October’s PSU to database and grid homes with their bug fixes, as usual. It also brings 21.4 for DB Systems (21c being an innovation release, understand just for testing). Something new that some of us have been waiting for a while, a multi-user mode for odacli tasks: you don’t need to be root anymore for managing the…

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Jérôme Dubar

Move a PDB from a server to another one using NFS

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

Introduction Multitenant brings new possibilities regarding Oracle databases, and one of them is to move a database from a container to another quite easily. When containers are on the same server, it’s very easy, but when the containers are on different servers, you will need to use a database link or an RMAN restore. But there is also another solution if you don’t want to use the previous ones: using a NFS volume. Test lab…

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Jérôme Dubar

ODA 19.12: How can you manage DB Systems with odacli?

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

Introduction As virtualization is available for all ODAs now, you could ask yourself if it’s a good idea to use this virtualization or not. Databases can be created as bare metal, but also within a DB System for better isolation. And both can be used on the same ODA. If you’re looking for how to deploy an ODA with KVM virtualization, please have a look at my previous blogpost here. What is a DB System?…

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Jérôme Dubar

5 things that aren’t true about RMAN

By | Database management, Oracle | No Comments

Introduction RMAN backups are not a hot topic today. This is because it didn’t evolve that much in 12c/18c/19c, and most of the databases are now protected by a good backup strategy since years, and no changes are needed. Furthermore, Disaster Recovery solutions are more and more deployed, and all the flashback technologies embeded in the database are well known. This has pushed the need for RMAN restore to the very latest option in case…

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Jérôme Dubar

Get prepared to move your Oracle databases to OCI

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

Introduction Cloud often raises in the top 3 solutions when thinking about Oracle infrastructure renewal. For obvious reasons: you do not need to buy any server, platform is already available, you pay as a subscription, you drastically reduce time to go to production and you can scale up and down. Oracle Cloud Infrastructure, or OCI, is a Cloud provider you should consider if you’re using Oracle databases. But what do you need to plan before…

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Jérôme Dubar

First contact with OCI’s Autonomous Database

By | Cloud, Database Administration & Monitoring, Database management, Development & Performance, Oracle | One Comment

Introduction Benefits of going into the Oracle Cloud (OCI) are clear for most of us: no more datacenter and hardware to manage. But what else? On OCI, you can also decide to get rid of part of the DBA tasks (the less interesting ones, for sure). To create your Oracle database environment, you need to choose among these 3 solutions (for most of us): a compute instance you will manage yourself a DB System, basically…

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Jérôme Dubar

ODA: Quickly solve ILOM and BIOS update errors

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

Introduction Patching an Oracle Database Appliance is sometimes quite tough and you often struggle to solve failures at different steps. Regarding ILOM and BIOS patching errors, a simple workaround is possible. Errors when patching ILOM and/or BIOS This is something I recently had on an ODA X7-2S when trying to apply patch 19.11. Patching of the test server was OK, but patching the production server on a week-end was not OK. I needed to find…

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Jérôme Dubar

Deploying a KVM-based virtualized X8-2M ODA

By | Database Administration & Monitoring, Database management, Operation systems, Oracle | 2 Comments

Introduction Until now, High-Availability (HA) ODAs could have been deployed either in bare metal or in virtualized mode. Virtualized mode means that instead of installing a classic Linux system on the nodes, an OVM hypervisor (based on Xen) was deployed. This hypervisor had at least one VM, a special one called ODA BASE, holding all the databases and having direct path to ASM disks. Other VMs could be created, not for databases but for applications,…

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Jérôme Dubar

Manage ODA patching with Data Guard or Dbvisit Standby

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

Introduction Building an Oracle infrastructure today without thinking about a Disaster Recovery solution (DR) is quite rare. This became obvious that a backup or a dump will not help if you do not know where to restore or import once your production server is down. And restoring a backup is definitely not the fastest way to bring back your database to life. As a consequence, Data Guard or Dbvisit Standby, depending on which edition you’re…

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