Disk failed even using Multipath. How? Why?
Hi everyone, hope you’re doing good. In my last post I explained some basic concepts about Multipath and the importance to use it. You can read more here: Device Mapper Multipath – How this works? Why as a DBA I should concern about it? On…
ORA-01565 ORA-01034 ORA-00205 Linux-x86_64 Error: 13: Permission denied when starting DB Instance
Hey everyone, Hope you’re all doing good. A few days ago, I received a call from a client regarding an issue during a RAC instance startup running on 19.17 version. This environment consists in a 2-node RAC, running with user segregation, so, for Grid Infrastructure…
How to copy SQL Patches, SQL Profiles and SQL Baselines between environments
Hey Everyone, Hope you’re fine. This is a simple and short post, but extremely useful. I was in a migration project and client used PreProd environment for stress test, code deploy, functional validations, etc. This PreProd environment have the sizing similar with…
Sequence value JUMPING after some “error”
Hey everyone, Hope you’re doing well. This week it happened a “good” discussion in a WhatsApp Group for a DBA Brazilian Community (DBA Brasil). One colleague was facing an “inexplicable” situation. He had an object SEQUENCE, configured with INCREMENT_BY to 1 and CACHE_SIZE to 20…
RSM0 Killed during Physical Standby conversion
Hi everyone, Hope all of you are doing good. Recently I was contacted by a client which were doing DR tests on its environment. All databases have Physical Standby (DataGuard) as a DR solution. In all DataGuards they have DG Broker configuration in place. Two…
Oracle RAC Database Backup: Backup Scheduling on All Nodes
Hey all, Hope you are safe and healthy during pandemic. This post can be very simple for some people, but, it will be useful to another ones. Some weeks ago a client had asked for our support. Their issue was with a cluster node that…
AutoScaling Hands-On (Part 2) – Post 4
Hey all, Hope you are safe and healthy during pandemic. Continuing the post series that we started some days ago, this is the fourth post about AutoScaling. Today we will continue Hands-On to create an environment with AutoScaling. You can follow this post series here:…
AutoScaling Hands-On (Part 1) – Post 3
Hey all, Hope you are safe and healthy during pandemic. Continuing the post series that we started some days ago, this is the third post about AutoScaling. Today we will start Hands-On to create an environment with AutoScaling. You can follow this post series here:…
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My postings reflect my own views and do not necessarily represent the views of my employer, Accenture.