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


VCS : Sample VCS configuration with Single Oracle Instance

  Sample VCS configuration file for single Oracle instance Review the sample configuration with a resource of type Oracle that is configured as follows in main.cf file. The shared disk groups and volumes in the cluster are configured as resources of type DiskGroup and Volume respectively....


Solaris Troubleshooting : how Solaris assigns controller numbers

In this post I am talking about  some of the observations on  how Solaris determines  the controller numbers Below are 3 common scenarios encountered by customers: 1) A jumpstart is done with nothing but an internal disk and DVD on the system. -Assigns cdrom C0 -Assigns internal fcal...


Getting Started with Red Hat Enterprise Linux – 7 – A Free Course

This is an introduction course to our Ever green Course “Become an Expert in Red Hat Enterprise Linux – 7 administration“, and in this Course you will learn about how to work with Red Hat Enterprise Linux – 7 using GNOME desktop environment.  How to Work with...


RHEL7 Interview Preparation – Assessment – 7

if (window.qmn_quiz_data === undefined) { window.qmn_quiz_data = new Object(); } Welcome to your RHEL7 Interview Preparation 7 Name Email Phone Number Please fill in the comment box below. window.qmn_quiz_data["33"] = {"quiz_id":"33","quiz_name":"RHEL7 Interview Preparation 7","disable_answer":"0","ajax_show_correct":"0","progress_bar":0,"contact_info_location":"0","qpages":[],"skip_validation_time_expire":1,"timer_limit_val":"30","disable_scroll_next_previous_click":0,"enable_result_after_timer_end":0,"enable_quick_result_mc":0,"end_quiz_if_wrong":0,"form_disable_autofill":0,"enable_quick_correct_answer_info":0,"quick_result_correct_answer_text":"Correct! You have selected correct answer.","quick_result_wrong_answer_text":"Wrong! You have selected wrong answer.","pagination":{"amount":"1","section_comments":"0","total_questions":30,"previous_text":"Previous","next_text":"Next"},"error_messages":{"email":"Not a valid...

Careers in Computer Networking & System Administration

Computers, information technology, and telecommunications have revolutionized the way we live and work. Jobs in the computer and telecom industry provide opportunities to work with the latest technology, and a great career choice for individuals with a technical aptitude.


Solaris Troubleshooting : Restore SDS Root mirror from the backup

NOTE: In order to restore the machine exactly the way it was, it is necessary to have a record of the locations of the state databases, and also the configuration of the metadevices. These are *not* held in user-readable form on the root filesystem, so it...


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