Oracle

Oracle Restart 19c and ACFS

By Mouhamadou Diaw 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(…)

Disk usage on ODA – Free MB and usable MB

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(…)

Oracle Database Appliance vs Oracle Cloud Infrastructure

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(…)

Upgrade to Oracle 19c – performance issue

In this blog I want to introduce you to a workaround for a performance issue which randomly appeared during the upgrades of several Oracle 12c databases to 19c I performed for a financial services provider. During the upgrades we ran(…)

ODA X8-2-HA cluster issue and NTP configuration

I have been recently deploying some new ODA X8-2-HA. After reimaging and creating the appliance, I had to patch the ODA. The day after, checking status, I could realize that my node 0 was not working as expected. I did(…)

CLUSTER

By Franck Pachot . Statistically, my blog posts starting with a single SQL keyword (like COMMIT and ROLLBACK) in the title are not fully technical ones, but about moves. Same here.

Automatic column formatting in Oracle sqlplus

Column formatting was always a pain in sqlplus when writing queries on the prompt. Most people use tools like SQL Developer or Quest TOAD which can scroll horizontally when running queries against a database, but as a consultant you are(…)

Oracle ADB from a Jupyter Notebook

By Franck Pachot . My first attempt to connect to an Oracle database from a Jupyter Notebook on Google Colab was about one year ago: https://medium.com/@FranckPachot/a-jupyter-notebook-on-google-collab-to-connect-to-the-oracle-cloud-atp-5e88b12282b0 I’m currently preparing a notebook as a handout(…)

Oracle MAA reference architecture and HA, DR, RTO, RPO

By Franck Pachot . I may have mentioned in some previous blog post that, in my opinion, the names of Oracle Database features make sense on the vendor product management context more than in a user context. I’m not(…)

ODA appliance creation error and cleanup.pl with option force

I had recently faced an interesting issue deploying ODA X8-2-HA. I would like to share my experience here hoping it could help some of you.