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

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Solaris SVM : Grow Mirrored root under SDS / SVM

This is a step by step procedure to grow a root filesystem which is mirrored using Solstice Disksuite or Solaris Volume Manager. It is strongly recommended that a backup of the root filesystem be performed  prior to following this procedure. Also, experience with the Disksuite or Solaris Volume...

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Cloud Computing – It's not just another buzzword, but a near future

WHAT IS CLOUD COMPUTING? Google, Yahoo, Amazon, and others have built large, purpose-built architectures to support their applications and taught the rest of the world how to do massively scalable architectures to support compute, storage, and application services. Cloud computing is about moving services, computation and/or...

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Veritas VxVM : Fails to start after rebooting the system

Upon boot-time startup, the VERITAS Volume Manager configuration daemon vxconfigd scans all the disks and reads the private regions on the disks. It has been observed in some rare situations, where – I/Os to a disk are failing, and – there are lengthy delays before the...

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Solaris Troubleshooting NIS : Configure Master, Slave and Client

Below procedure gives the steps to configure NIS Master Server, Slave Server and Client services in both solaris 9 and Solaris 10 Configuring NIS Master Server You must login as root. 1.  Define the NIS domainname. # domainname example-domain –> “example-domain” is the domain name.  It...

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Solaris Troubleshooting : Identifying the network address and port number for a running process

For Solaris System Administrators It is often necessary to find out all the related processes that are using a specific network port.  There are several ways to accomplish this (lsof, pfiles, crash): Method 1: lsof examples: Ex: netstat -a shows a connection between hodware.port 36169 to...

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Solaris Troubleshooting Jumpstart : Identification of right network interface for network boot

During the jumpstart installation of a client below error is most command error that we encounter: Error: “Timeout waiting for ARP/RARP packet” This error cause might be network connectivity and most of the times it is the wrong network interface that is configured to boot from...

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Veritas Volume Manager : Resolving Duplicate disk/device entries in "vxdisk list" or vxdisksetup.

Sometimes, when failed fibre channel disks are replaced in arrays or servers under Veritas Volume Manager control, duplicate entries appear in the vxdisk list output. While Veritas indicates in TechNote 236062 that the ultimate solution is a reconfiguration reboot (or two), and while standard reboots have...

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Solaris 10 : Zone/Container creation

This post explains some of the basic questions and procedures involved in Zone/container creation 1) Where will the Container reside? # mkdir -p /export/zones 2) Configure the Container: Command zonecfg, located in /usr/sbin like all other Zone Commands, is used to configure the Container. The Zone...

 
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