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


VCS : Sample Configuration for Sybase Cluster

In a typical configuration, VCS is configured in a two node cluster. The Sybase data is installed on shared disks. The Sybase server binaries can be installed locally on both nodes or on shared disks. The agent for Sybase is installed on both nodes. The shared...


VCS : Disabling the VCS agent

  To disable the agent on a system, you must first change the VCS service group to an OFFLINE state. You can stop the application completely, or switch the service group to another system. To disable the agent Determine if the service group is online. At...


VCS : Sample Configuration to add new Service Groups

Below are the some sample configurations on how do we  configure new service groups  in two common scenarios i.e. while VCS online and while the  VCS is stopped. It is good to know this information to perform various dynamic configuration to VCS cluster without disrupting the...


VCS : Adding new node to the existing cluster

Install the  VCS software manually  on server check the  packages  and install the license key. 1. ./Installvcs -installonly Configuring LLT and GAB: Create the LLT and GAB configuration files on the new node and update the files on the existing nodes. To configure LLT 1 Create...


Solaris Troubleshooting : replicate VTOC table to new disk using fmthard

It is assumed that both the disks are of the same capacity and similar in type.  The following Instruction assumes a PATH variable that contains /usr/sbin and /usr/bin. For commands or files that normally exist outside of these common directories, full paths are specified. Source      = DISK1...


Solaris Troubleshooting : Debugging the Solaris Name Service Switch

The processing of the name service switch configuration file, /etc/nsswitch.conf, is subtle.  Existing tools, such as ” truss” , do not always provide sufficent information as to how a lookup is performed. However, by setting the NSS_OPTIONS environment variable, the name service switch can reveal how...


Solaris Troubleshooting : Boot Error “FATAL: system is not bootable, boot command is disabled”

In most cases, this warning occurs at the OBP “ok” prompt if the power-up initialization (right after the banner was displayed) was aborted. Usually,this is done by using the Stop-A keystroke (XIR Reset).If after such an occurrence “boot” command is executed, the system displays the following...


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