Unix, Linux, DevOps , Cloud computing and BigData Knowledge-Base

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Understanding Linux Hugepages

Before we discuss about Huge pages, we should revise some of the basic concepts about Operating system memory management. Operating systems basically deals with two types of memory for its operations one is Physical memory ( actual Physical RAM) and the second is Virtual memory ( combination of Physical...

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Automation in System Administraton – are you a middle level unix admin? it is for you.

What is Automation? Automation is nothing but performing system administration tasks without manual interventions, and complete the operations using specific tools/programs/scripts. Example: Writing a script to backup the data from one server and run it using cron scheduler on every night. Why the Automation is important...

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Know about Disksets

Before going to the basic understanding of the disksets let us first know the necessity for disksets in solaris there are many prime reasons people prefer for going into disksets Availability Redundancy Efficiency Availability: Disksets are more reliable under sun cluster environment but not limited to...

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Solaris10 Troubleshooting Zones : Can’t boot to zones

The non-global zones (or zones) facility in Solaris[TM] provides an isolated environment for running applications. The zones FAQ can be found at OpenSolaris.org. Symptoms: zone boot error zone boot failed can’t login to the zone can’t access zone zone not running

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Most Popular Posts in last 6 months.

  Solaris 10 Troubleshooting : Check the Integrity of libraries and critical files                11078 Reads VxVM : Resolving the Intermittent Disk errors by clearing the failing flag on a disk         5643 Reads Cloud Computing – What does it mean to System Administrators                                  3924 Reads Beginners Lesson...

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SAN Storage Operations for Enterprise System Administrators

 Enterprise Unix system administrators  will always have  two challenges, every day, to deal with  … the first one is  providing sufficient Computing resources for the  business applications and the second one is providing  sufficient storage for the business applications.  We will discuss about managing computing resources(  CPU...

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Solaris Troubleshooting : SDS/SVM – Replace failed disk from root mirror

You will need the following info handy to proceed with the process:         1.  ls -l /dev/dsk/c#t#d#s# of the alternate sub-mirror boot device         2. partition table layout of the failed boot device     Part I Creating an openboot prom alias to alternate boot device 1....

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