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Casimir Schmid

How to code better?

07.09.2023 by Casimir Schmid

Sysadmins are traditionally more operators than developers, they code mainly scripts for automation reasons (shell scripts, Ansible, Terraform, aso). In addition, they can find themselves in situations where they need to analyse code or even decompile programs. Some sysadmins lack(…)

Database Administration & Monitoring

Import tnsnames.ora in LDAP directory

04.02.2022 by Casimir Schmid

This post gives a short intro to directory naming, shows how to import from tnsnames.ora to an LDAP directory. Finally, as an alternative, you get an example how a TNS connection string looks like in ldif file format. LDIF can(…)

Database Administration & Monitoring

log4shell: Determine affection, mitigate, example: Oracle Unified Directory

17.12.2021 by Casimir Schmid

This post is about two security vulnerabilities reported on log4j 2.x framework: CVE-2021-44228, with a base score 10 (of 10 max.) in CVSS version 3.1 risk, and CVE-2021-45046, base scored 9. I will list some ways to determine affection, how(…)

Database Administration & Monitoring

DOAG 2021

19.11.2021 by Casimir Schmid

All virtual, rumours say about 1000 participants, over 200 Sessions, most of them interesting, many people to meet: that was DOAG 2021.

Database Administration & Monitoring

Exadata X9M release

29.09.2021 by Casimir Schmid

I would like to share some personal thoughts. September 28th 2021, Oracle released the eleventh Exadata data machine called "X9M-2" (2 CPU sockets), X9M-8 (8 sockets) and ZDLRA X9M. Exadata is a computing platform to run Oracle RDBMS, zero data(…)

Hardware & Storage

When to secure erase storage devices? How to do it on Oracle Database Appliances?

16.06.2021 by Casimir Schmid

TL;DR If hardware stays inside your data center, it's ok to secure erase storage devices. If it leaves your data center (decommission, move to another location), it's best to physically destroy (shredder) it. Storage devices are not only hard drives,(…)

Database Administration & Monitoring

Persistent Memory and first usage on Oracle Exadata platform

21.11.2019 by Casimir Schmid

Todays fastest possible interface for flash storage in terms of bandwidth and latency are DRAM sockets. Exadata X8M is the first Oracle engineered system using this technology that, according to first measurements taken by Oracle corporation, result in 200% read(…)

Cloud

Oracle OpenWorld Europe: London 2019

17.01.2019 by Casimir Schmid

Oracle 19c, Oracle Cloud in numbers and pre-build environments on vagrant, docker and Oracle Linux Cloud Native environment, those were some of the topics at Open World Europe Conference in London. To see what's behind with links to detailed sources,(…)