February 2021 - Tales from the Datacenter v2.0

Storage Performance Part 3: UEK vs a standard kernel

Posted on February 17, 2021 by admin — No Comments ↓

This post is a bit off the original plan, mainly due to timing. Short version on the timing, my Dell 7750 notebook (The one with a Xeon processor, 128G ram, and NVME storage…) had to get replaced. Dell was good Continue reading Storage Performance Part 3: UEK vs a standard kernel→

Raspberry PI Storage Performance: Part 2 U3 vs U3 Cards, they are all no equal

Posted on February 16, 2021 by admin

In the previous post in this short series, I shared a benchmark between MicroSD card and a USB Drive. In this review we look at two different MicroSD cards, both with a U3 rating. The U3 rated card was Continue reading Raspberry PI Storage Performance: Part 2 U3 vs U3 Cards, they are all no equal→

Raspberry PI Storage Performance: Part 1 USB vs SD Card

Posted on February 15, 2021 by admin — No Comments ↓

Recently I saw some discussion about storage performance on Raspberry PIs, with the focus being on performance between the MicroSD card vs. USB performance for the storage. This short series of BLOGs will compare several performance options for the Raspberry, Continue reading Raspberry PI Storage Performance: Part 1 USB vs SD Card→

Error adding new node to Gluster cluster September 4, 2023
While working on a Gluster project, I ran into an issue adding in a third node to an existing cluster running on Oracle Linux 8. This was very frustrating, as the cluster was working fine. I went ahead and built Continue reading Error adding new node to Gluster cluster→ The post Error adding new node […]
Arming your Database! A comparison of Arm vs X64 July 3, 2023
Oracle recently released it’s popular Enterprise Database for the Arm CPU. This is news, as it’s the first new architecture announced by Oracle since they added the Itanium architecture. In fact, this also reverses the current path, where Oracle has Continue reading Arming your Database! A comparison of Arm vs X64→ The post Arming your […]
What version of Java gives the best performance? June 13, 2023
It’s important to note that Java performance can differ across various versions of the software, influenced by several factors. It’s not uncommon for developers and application owners to be caught off guard, as the latest Java version may not necessarily Continue reading What version of Java gives the best performance?→ The post What version of […]
Installing Oracle Linux from the internet! April 27, 2023
I’ve done this several times, and decided it was time to write up how it works. Basically, this blog will show you how to install Oracle Linux using the Oracle public yum server! While this is showing how to install Continue reading Installing Oracle Linux from the internet!→ The post Installing Oracle Linux from the […]
Monitoring Internet performance with a Raspberry PI #PiDay2023 March 13, 2023
Ever wonder how your ISP is really doing, with the quality of their services? Wouldn’t it be fun to be able to track critical metrics, like bandwidth availability and network latency? While we all think about how fast my internet Continue reading Monitoring Internet performance with a Raspberry PI #PiDay2023→ The post Monitoring Internet performance […]
The easiest way to change Oracle passwords for app servers … two passwords at the same time! December 9, 2022
I just wrapped up a webinar this week, and it went well. Once of the folks attending asked about a feature I have beeb really enjoying in 19c. This feature called gradual password rollover allows a database user to have Continue reading The easiest way to change Oracle passwords for app servers … two passwords […]
Installing KVM on ARM with Oracle Linux December 4, 2022
I was talking with a friend recently, and he was looking for a quick and easy way to virtualize a small lab system. We discussed a full out hypervisor and management system like Oracle Linux Virtualization Manager (OLVM and Oracle’s Continue reading Installing KVM on ARM with Oracle Linux→ The post Installing KVM on ARM […]
Setting up vnc server on Oracle Linux 8+ on ARM and X86 December 3, 2022
I’m a huge fan of VNC. It’s a great way to get X access to a server, without having to install X on your PC. VNC aka Virtual Network Computer, also has an advantage that the X session is running Continue reading Setting up vnc server on Oracle Linux 8+ on ARM and X86→ The […]
Installing Oracle Linux 9 on ARM July 18, 2022
I have been talking a bit about ARM these days, with many customers looking at ARM on OCI for the application tier. These customers have already learned that ARM is not that different from x86 when running Oracle Linux. The Continue reading Installing Oracle Linux 9 on ARM→ The post Installing Oracle Linux 9 on […]
Oracle and Free, who would have thought? #JoelKallmanDay October 11, 2021
While thinking about what to write for the annual Oracle Community Day, I learned that it was being renamed to Joel Kallman Day,in honor of Joe who was the the head of APEX development before his untimely passing. This got Continue reading Oracle and Free, who would have thought? #JoelKallmanDay→ The post Oracle and Free, […]