Veritas Administration for unixadmin / VxVM Learning / VxVM Troubleshooting
by Ramdev · Published February 9, 2012 · Last modified August 22, 2015
This post is continuation to the Yogesh’s recent post ” Recovering Disabled Disk groups” ( which is talking about recovering Disk group which has no volume issues at low level but just failed to initiate during the start up), and also related to the post “Recovering...
Blog for Unix Admin / Solaris Admin / Solaris Networking
by Ramdev · Published February 8, 2012 · Last modified July 2, 2015
If you want to make a TCP application bind to a different port instead of standard port then here is what you do. This will enable to telnet to a machine only if you know the port number. 1. vi /etc/services file and edit the line for telnet...
Veritas Administration for unixadmin / VxVM Learning / VxVM Troubleshooting
by Yogesh Raheja · Published February 3, 2012 · Last modified August 22, 2015
A common problem which sometimes we use to see in vxvm is DG’s in disabled state. In this post I will try to provide a solution to this problem. 1.) Check out the outputs of df, vxdisk and vxdg to identify the state of DG’s and...
Blog for Unix Admin / Solaris Admin / Solaris DNS / Solaris Networking
by Ramdev · Published February 2, 2012 · Last modified July 2, 2015
In this post we will discuss about the commands to check DNS configuration and functions for sendmail. Follow these steps to: ensure dns client configuration is in place and enabled; verify mail exchanger lookups are successful (if using DNS for mail exchanger lookups). To resolve error...
Linux Admin / Linux Disk Management
by Yogesh Raheja · Published January 30, 2012 · Last modified July 2, 2015
In this doc I am trying to present base for Linux Filesystem. I tried to cover Theoratical and Pratical portition where-ever it is necessary. What is Filesystem In simple term you can say a FS is a medium to access your files/directories in any Unix Flavour....
Veritas Administration for unixadmin / VxVM Fundamentals / VxVM Learning
by Ramdev · Published January 30, 2012 · Last modified July 2, 2015
Quick review on what is new in VxSF 6.0 compared to Old releases Creating a volume of maximum size In previous releases, Veritas Volume Manager provided a two-step approach to creating a volume of the maximum size. You had to run the vxassist max size command...
Red Hat Enterprise Linux 4.5 and previous On a default installation the package Sysreport should be already installed. If not you need to install the package “sysreport-.rpm” with the following command # rpm -ivh sysreport-.rpm or, if your system is registered at the Red Hat Network...
Blog for Unix Admin / Solaris Admin / Solaris Networking / Solaris Performance Monitoring
by Ramdev · Published January 2, 2012 · Last modified July 2, 2015
Collisions may occour on ethernet links which are operating at Half Duplex (HDX). They do not occour on links using Full Duplex (FDX). The normal formula to calculate the packet collision rate is: ( collisions / output packets ) * 100 = collision rate For example: #...
Whenever we detect a new disk in Solaris operating system, the first operation we perform is “Disk label” using the format command. The purpose of this post is to explain the background information of Solaris default disk labeling and also discuss the EFI disk labeling introduced...
Blog for Unix Admin / Solaris Admin / Solaris Best Practices / SUN Hardware
by Ramdev · Published January 1, 2012 · Last modified August 5, 2016
It is considered a ‘Best Practice’ to configure a ‘loghost’s for each server and production domain. A ‘Loghost’ on a Solaris platform can permanently save messages that are logged in the System Controller’s NVRAM buffer. This will insure that they are not lost due to either a...
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