Recent Posts

May, 2013

  • 20 May

    How to calculate vxvm volume size and objects size

    I am very sure that many of the Unix beginners(i e. veritas volume manager) will be struggling to calculate the values from “vxprint” output and “vxdisk” output to determine the size of the objects like volume,plex,subdisks and disk. Off course there is no easy way to get the values in MB or GB using veritas command. You need to calculate it your self. …

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  • 15 May

    How to copy the files from Unix to windows ? winscp

    This is a command question among the Unix beginners and windows administrator that how to copy the files from windows to Unix operating system and vise-verse.In all the Unix/Linux operating system supports secure shell which is widely used.Its very secured compared to telnet and ftp. By default ssh uses the port 22. SFTP (secure file transfer protocol  & SCP (secure copy) also uses the same port.  But windows operating system …

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  • 15 May

    rcapadm – Solaris Online Resource Capping

    As you know, system resources like CPU,MEMORY,SWAP can be limited to Solaris local zones using capping.We do the resource capping by just using “zonecfg” command. But the changes are instantaneous ?  No. You need to reboot the local zone in a order to take the settings effect.Here we will see how to make the changes instantaneous. But instantaneous     is not permanent.You …

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  • 13 May

    Solaris Zone’s Resource capping – MEMORY-CPU

    Solaris Zone’s Resource capping:  Resource capping is nothing but Limiting the system resources like CPU,Memory,SWAP  to local zone.For an example, if you are running local zones without a resource capping,there may be high possibility that one zone will consume all the global zone resources and it will effect other local zones which are running the same global zone.We do not want to put …

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  • 11 May

    How to use snoop in Solaris ?

    Snoop is a inbuilt packet analyzer tool in oracle Solaris operating system.It is used for network troubleshooting and analysis.But normal user do not have permission to run snoop command.Only root user can run it.Snoop command having option to redirect the output to file.This file can be analysed later using snoop command itself or you can use wireshark tool for that.If you want highest level of protocol to …

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  • 10 May

    Solaris Process Inspection Commands

    Oracle Solaris provides many utilities for inspecting the state of process which are running on the system.Using the process inspection commands ,we can dig in to the process  in detail manner for in depth troubleshooting.Here we are going to see many process introspection command which will very handy on application trouble shooting.This article is based on Solaris internals book. Please see the below table to know …

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  • 10 May

    How to find the Solaris global zone from local zone using script

    Many of the Solaris administrators will break their head to find Solaris global zone name from  localzone. These kind of questions may asked in interviews too.How do you find it ? The answer is No.There is no simple command to find it.Because Oracle (Sun microsystems  ) designed the Solaris zones in such a way for that, you can’t  find the global zone from local zone due to security reason. …

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  • 10 May

    ZFS – How to increase rpool in Solaris

    We have an issue in ZFS “the next generation filesystem”  as well.In ZFS, you can not extend the root pool by adding new disks.But it has some logic too. For an example,if you are having more than one harddisk in root zpool, loss of one disk result be un-bootable system.To eliminate these kind of situations ,its better to keep the rpool in one disk …

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