Backup Scripts for Linux

Sending out a couple of scripts for backing up entire disks and files for Linux. We are currently backing up to a ZFS Appliance share since we don't have enough ports for a backup network. Each of these scripts will do a count of existing backup files and remove anything older. dd_backup.sh #/bin/bash source="sda" dest="/zfssa/os_backup" …

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ORA-27301: OS failure message: No space left on device

We ran into this error on our Exadata x8m. Oracle had installed it but only the minimum for /dev/shm mount, why I don't know. Typically a form with all of the information needed to specify load and such is completed so this doesn't happen. Anyway its an easy fix. Since /dev/shm is mounted as a …

Grafana/Prometheus/Loki: Linux Install

Having a home lab is great but being able to monitor everything is even better. In this example I am setting up Grafana, Prometheus, Loki, Promtail and Node_Exporter on a monitoring server and Promtail, Node_Exporter on a client. My Grafana server is running OEL 8.5 which is essentially Red Hat 8.x. Components Minisrv1 - i5 …

Home Lab: Redo

In the beginning there was a lab... This my makeshift lab before I got my 42u rack in. In this version I have used a steel rack I believe I got at Lowes. It worked well for years but wanted something more accessible and take up less room. It all came to a head when …