Infrastructure at your Service

Linux/UNIX Archives - Page 3 of 4 - Blog dbi services

Yann Neuhaus

DOAG Konferenz 2012 – mein Fazit: wärmstens zu empfehlen!

By | Technology Survey | No Comments

Die DOAG Konferenz 2012 ist vorbei. Wie immer war sie sehr bereichernd! Wir von dbi services hatten dieses Jahr über drei Präsentationen die Gelegenheit, unser Wissen in den Bereichen Cloud Control 12c – Thema: Datenbank-Backup und Handling des Java-Diagnostic-Tools JVMD (Gérard Wisson) – sowie Linux Container (David Hueber) an die Teilnehmer weiterzureichen. dbi services hat ebenfalls seinen Beitrag zum Treffen der Schweizer Oracle User Group (SOUG) geleistet, einem unter anderem durch das Engagement unseres Partners…

 
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Michael Schwalm

Unable to resize tmpfs on Oracle Enterprise Linux 6 versions

By | Operation systems | 4 Comments

I recently helped to create a lab dedicated to a training about Oracle backup and recovery, with Oracle 11g databases. While creating several databases on an Oracle Enterprise Linux 6.1, I wanted to resize the tmpfs to allocate more memory to the databases for AMM (Automatic Memory Management). That was a small challenge … By default, the value of the tmpfs is the half of the installed memory. So, on my 3 GB memory sized…

 
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Pierre Sicot

OOW Day 3: Playing with Oracle 12c – new features pluggable & multitenant database

By | Technology Survey | No Comments

For the third day at the OOW, we had the opportunity to “play” with the beta 2 of the upcoming Oracle database release “Oracle Database 12c”. This was a Hands-on-Lab session with about 60 participants with at each seat place an Oracle VM guest running on Oracle Linux 5. The goal of this session was to demonstrate the new database feature pluggable database announced by Larry as a multitenant database. Let’s start with some generalities…

 
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Jérôme Witt

OOW Day 2: Oracle Linux developements & news

By | Technology Survey | No Comments

This second day at the Oracle Open World is hotter than the previous one! Today, we focused on Oracle Linux. Oracle Linux roadmap, the Unbreakable Enterprise Kernel (UEK) release 3 is coming in summer 2013. Oracle’s strategy consists of developing the new enterprise-class kernel on state of the art hardware, which guarantees to customer to get the most of their hardware (Like Suse for SLES 11). The Oracle Linux development team is working on many…

 
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David Hueber

Linux: Disks diagnostic using smartctl

By | Operation systems | No Comments

Facing disk issues such as corruption or block defect is thankfully not happening frequently. However when it does, the diagnose may look sometimes like a real struggle. This is forgetting that disks integrate since years the S.M.A.R.T technology. Good point, it can easily be adressed in Linux command line through smartctl What is S.M.A.R.T. exactly? S.M.A.R.T., which stands for Self-Monitoring, Analysis and Reporting Technology (also called SMART), is a monitoring system for and integrated in…

 
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Yann Neuhaus

Oracle Enterprise Manager 12c – Database Target remains in Pending state (SLES x86_64 target)

By | Database management | No Comments

Last month I was confronted to a very interesting and strange problem while deploying a Cloud Control 12c infrastructure. One of my monitored server was a SuSE Linux Enterprise Server (SLES) 64 bits on which a 11.2.0.3 Oracle database was installed. The x86_64 cloud control 12c agent has been deployed on this server with the standard Cloud Control 12c agent deployment procedure (not the scope of this post). However despite several trials to configure the…

 
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David Hueber

hpacucli: Storage management on HP servers through command line

By | Hardware & Storage | No Comments

For sure you already used, or at least heard about, the HP Smartstart Kit. This especially includes the storage management part ACU: Array Configuration Utility. This tool is pretty straightforward to configure the storage and RAID volumes before installing an HP server.

However did you know that these features are also available in command line? This is what hpacucli does…

 
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David Hueber

Using IOzone for Linux disk performance analysis

By | Operation systems | 6 Comments

Who never had to measure the disk performances on a system?

Speaking about Linux performance monitoring includes a significant part on disk performances. If you are facing applications or databases running slower than expected or than on other environments, you may take a look on the I/O performances.
This blog aims to provide to introduction to a pretty interesting tool, iozone…

 
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