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

5

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...

0

Solaris10 Troubleshooting Zones : verify the configuration and Troubleshoot zones that fail to boot

Instructions to Verify the Configuration of Non-global Zones: 1. The zonecfg utility creates and modifies the configuration of a zone.  Its subcommand verify can be used to verify the current configuration for correctness: All resources have all of their required properties specified. A zonepath is specified...

24

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...

7

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...

3

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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