Linux Collection
of the System Admin and Developer Community of OTN
Blog: How to Get Started Using DTrace on Oracle Linux
DTrace is now available on Oracle Linux. Here are several resources to help you become familiar with it, including a video interview in which its inventor explains why sysadmins should be using it to improve the performance of applications they have deployed, download instructions, a how-to article to get you started, links to one-liners and other resources. Plus a few bonus features.
posted Wed, 12 Jun 2013 11:17:00 +0000
DTrace is now available on Oracle Linux. Here are several resources to help you become familiar with it, including a video interview in which its inventor explains why sysadmins should be using it to improve the performance of applications they have deployed, download instructions, a how-to article to get you started, links to one-liners and other resources. Plus a few bonus features.
posted Wed, 12 Jun 2013 11:17:00 +0000
Tech Article: Using DTrace on Oracle Linux
DTrace is a powerful tool, and it can do some amazing things. But it's not that difficult to get started doing simple things. You can build up from there. In this article, Richard Friedman gives you a high-level overview of DTrace and its major components:providers, modules, functions, and probes. He explains how you can use either one-liner commands on the command line, or write more complex instructions in scripts, using the D language. He provides simple examples for each. It's a great way to get your feet wet.
posted Fri, 07 Jun 2013 16:30:12 +0000
DTrace is a powerful tool, and it can do some amazing things. But it's not that difficult to get started doing simple things. You can build up from there. In this article, Richard Friedman gives you a high-level overview of DTrace and its major components:providers, modules, functions, and probes. He explains how you can use either one-liner commands on the command line, or write more complex instructions in scripts, using the D language. He provides simple examples for each. It's a great way to get your feet wet.
posted Fri, 07 Jun 2013 16:30:12 +0000
Blog: How the Oracle Linux Update Channels Are Structured
Every Oracle Linux distribution release is freely available as ISO installation images from the Oracle Software Delivery Cloud. Security updates and critical bug fixes (errata) released in between update releases are published on the Unbreakable Linux Network (ULN) and our public yum repository. Lenz Grimmer describes these and other ins and outs of the Oracle Linux distribution cycle.
posted Thu, 18 Apr 2013 14:47:58 +0000
Every Oracle Linux distribution release is freely available as ISO installation images from the Oracle Software Delivery Cloud. Security updates and critical bug fixes (errata) released in between update releases are published on the Unbreakable Linux Network (ULN) and our public yum repository. Lenz Grimmer describes these and other ins and outs of the Oracle Linux distribution cycle.
posted Thu, 18 Apr 2013 14:47:58 +0000
ACE Director: Bjoern Rost, co-founder of Portrix Systems
Bjoern is the co-founder of Portrix Systems, a service provider and consulting company focused on servers, storage, Solaris, RAC, and virtualization. He has spoken at several conferences and user group meetings including OpenWorld, UKOUG, COLLABORATE and DOAG. He also serves as the European Chair of IOUG's RAC special interest group. Congratulations, Bjoern! So glad to have you with us.
posted Thu, 11 Apr 2013 18:55:51 +0000
Bjoern is the co-founder of Portrix Systems, a service provider and consulting company focused on servers, storage, Solaris, RAC, and virtualization. He has spoken at several conferences and user group meetings including OpenWorld, UKOUG, COLLABORATE and DOAG. He also serves as the European Chair of IOUG's RAC special interest group. Congratulations, Bjoern! So glad to have you with us.
posted Thu, 11 Apr 2013 18:55:51 +0000
Blog: Migrating to Oracle Linux: How to Identify the Applications to Move
A summary of the rpm commands to help you identify the applications you need to move during a migration to Oracle Linux.
posted Fri, 05 Apr 2013 19:45:56 +0000
A summary of the rpm commands to help you identify the applications you need to move during a migration to Oracle Linux.
posted Fri, 05 Apr 2013 19:45:56 +0000
Tech Article: How to Configure the Linux Kernel Out of Memory Killer
What the Linux out-of-memory (OOM) killer is and how to find out why it killed a particular process. Methods for configuring the OOM killer to better suit the needs of many different environments.
posted Fri, 22 Feb 2013 17:38:32 +0000
What the Linux out-of-memory (OOM) killer is and how to find out why it killed a particular process. Methods for configuring the OOM killer to better suit the needs of many different environments.
posted Fri, 22 Feb 2013 17:38:32 +0000
Tech Article: Preventing Silent Data Corruption in Oracle Linux
Linux, like any OS, is vulnerable to silent data corruption. It can be caused by a faulty component or sysadmin error. It's nearly impossible to detect. But it's not impossible to prevent. EMC, Emulex, and Oracle partnered up on an end-to-end solution.
posted Thu, 21 Feb 2013 21:22:10 +0000
Linux, like any OS, is vulnerable to silent data corruption. It can be caused by a faulty component or sysadmin error. It's nearly impossible to detect. But it's not impossible to prevent. EMC, Emulex, and Oracle partnered up on an end-to-end solution.
posted Thu, 21 Feb 2013 21:22:10 +0000
Tech Article: How to Update a Linux Kernel Without Rebooting
The uptrack-upgrade command applies patches to your Linux kernel while your system is running. This article explains how to use its variations and how to configure automatic updates.
posted Wed, 20 Feb 2013 22:57:31 +0000
The uptrack-upgrade command applies patches to your Linux kernel while your system is running. This article explains how to use its variations and how to configure automatic updates.
posted Wed, 20 Feb 2013 22:57:31 +0000
Blog: How to Install Oracle Linux From a USB Stick
Robert Chase walks you through the steps required to install Oracle Linux from a USB stick. Includes the script you need to create the key for the USB drive.
posted Fri, 11 Jan 2013 18:34:41 +0000
Robert Chase walks you through the steps required to install Oracle Linux from a USB stick. Includes the script you need to create the key for the USB drive.
posted Fri, 11 Jan 2013 18:34:41 +0000
Blog: How to Treat an NFS File As a Block Storage Device
More about the dm-nfs kernel module, courtesy of Lenz Grimmer. If you want to work with block-based shared storage devices such as ocfs2, but you don't have iSCSI or SAN storage, you can use NFS, instead. Just create an NFS file that will contain the block-based shared storage device. In fact, you can create several shared storage devices that way. And use the "dm nfs" utility to create a device map. Lenz Grimmer expands on Wim's original blog.
posted Wed, 09 Jan 2013 16:39:22 +0000
More about the dm-nfs kernel module, courtesy of Lenz Grimmer. If you want to work with block-based shared storage devices such as ocfs2, but you don't have iSCSI or SAN storage, you can use NFS, instead. Just create an NFS file that will contain the block-based shared storage device. In fact, you can create several shared storage devices that way. And use the "dm nfs" utility to create a device map. Lenz Grimmer expands on Wim's original blog.
posted Wed, 09 Jan 2013 16:39:22 +0000
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