Recently I was telling a customer about the differences between booting into single-user mode and booting into maintenance mode. If you’re not familiar with these procedures, I recommend either using an existing LPAR or creating a new LPAR and trying them both. But before you do that, check out two valuable IBM support technotes […]

Single-User Mode vs. Maintenance Mode

Recently we had a requirement to build a new AIX environment in a remote office. Due to the unreliable network pipe between our main operations office and the remote site, building a new AIX host via NIM restore or transferring a mksysb image over the network weren’t options. The only viable alternative was to […]

Migrating AIX User Environments

If you’re like most UNIX administrators, you probably have a crontab or some other housekeeping program that regularly searches your systems for core dumps, backs them up (maybe), and then deletes them. This leaves you to try to puzzle out their cause from information contained in the AIX error log. Of course, about half […]

Accessing the Data in Core Dumps

I have been playing around with Splunk recently, so I can understand what it is and why my customers may choose to it.   For those that don’t know, Splunk (the product) captures, indexes and correlates real-time data in a searchable repository from which it can generate graphs, reports, alerts, dashboards and visualizations.  In essence […]

Monitoring IBM Storwize and IBM SVC products with Splunk

You can install Splunk Enterprise on AIX using a tar file. Important: The user Splunk is installed as must have permission to read /dev/random and /dev/urandom or the installation will fail. Upgrading? If you are upgrading, review “How to upgrade Splunk Enterprise” for instructions and migration considerations before proceeding. Install Splunk Enterprise The AIX […]

Install Splunk on AIX

Splunk, outil d’analyse de logs, permet de rassembler les logs de différents serveurs et d’en faire l’analyse via une interface web. Splunk est offert en deux versions, soit en version entreprise et en version gratuite. Certaines fonctionnalités ont toutefois été désactivés de la version gratuite. Le contrôle d’accès (LDAP/Utilisateurs Splunk) est l’une d’entres-elles. En […]

Splunk version gratuite: bloquer l’accès à vos logs

Indexez les données machine de tous les formats, où qu’elles se trouvent : journaux, données click-stream, configurations, traps et alertes, changements, résultats de commandes de diagnostic, données issues des API et files de messages, et même les journaux multi lignes provenant d’applications personnalisées. Sans aucun schéma prédéfini, Splunk ne fait appel à aucun connecteur […]

Serveur de logs Splunk : Présentation et installation

Finally, I get round to trying a PowerVC AIX image deploy using the Cloud-Init activation engine instead of the older Activation Engine originally used with System Director. First, let me say I am sold on the Cloud-Init approach and will be using it from now on but it can be a bit tricky to […]

PowerVC deploying AIX with Cloud-Init