VxVM Learning – Resize veritas volume without using vxresize


I have started unixadminschool.com ( aka gurkulindia.com) in 2009 as my own personal reference blog, and later sometime i have realized that my leanings might be helpful for other unixadmins if I manage my knowledge-base in more user friendly format. And the result is today's' unixadminschool.com. You can connect me at - https://www.linkedin.com/in/unixadminschool/

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23 Responses

  1. vignsh says:

    Hi gurukul frendz, pls post vxvm plex related issues and troubleshooting scenario.

  2. Yogesh Raheja says:

    Hi Vignsh, We will work on your request and come up with the plex realated posted soon.

  3. Ramdev says:

    Hi Vignesh,

    Please go through the below posts, and you can search the site with “vxvM” to find more related posts.

    http://gurkulindia.com/main/2011/04/vxvm-veritas-plex-state-transition/ http://gurkulindia.com/main/2011/05/vxvm-recovering-an-unstartable-volume-with-a-disabled/

  4. Sateesh says:

    it is good one.

  5. Saurabh says:

    What is the difference between vxresize and vxassist ?

  6. Ramdev says:

    @Saurabh — vxassist with growby/growto + fsadm ( for filesystem expansion) = vxresize

  7. Yogesh Raheja says:

    @Saurabh, In simple terms one can say.. vxassist is only use to craete/increase “Volumes” only (best example is in case of creation/increase of RAW devices for databases) here no effects will be noticed in the output of df -h as only volume is increased. On the other hand vxresize is a combination of vxassist (increase of volume) + fsadm (expansion of Filesystem) as mentioned by Ram. But vxresize is not used in the volume creation it will only support expansion/compression.

  8. Saurabh says:

    Thanks Ram and Yogesh. I got this now. :)

  9. Yogesh Raheja says:

    @Saurabh, you are most welcome:)

  10. Anuj says:

    Could you provide a good example for growto & growby and shrinkto & shrinkby ?

  11. Ramdev says:

    hi anuj , do you mean example with syntax or the concept?

  12. Anuj says:

    Yes Ram….just a clear cut explanation….
    I am also looking for VxVM in Linux… like Booting process, Root disk failed and system not booting up …etc…

  13. Anuj says:

    In Solaris… entries will be added to /etc/system and for Linux where does it sit ?

  14. Yogesh Raheja says:

    @Anuj, for Linux you have /etc/sysctl.conf which act as a system file. The main difference in Solaris (/etc/system) and Linux (/etc/sysctl.conf) is that the systcl.conf file can be re-read by Linux kernel while the system is up by sysctl -p command whereas if you will ammend any new entry in /etc/system you need to reboot the box to re-read the parameters for Solaris Kernel.

  15. Anuj says:

    Thxs Yogesh… 
    Does the Veritas entries will be under /etc/sysctl.conf or /etc/grub.conf or some other files?

  16. Ramdev says:

    anuj – veritas changes will go to /etc/sysctl.conf. Grub.conf only used when you have to change boot related kernel options.

  17. Yogesh Raheja says:

    @Anuj, always remember /etc/system (Solaris) –> /etc/sysctl.conf (Linux)

  18. anuj says:

    growto & growby and shrinkto & shrinkby diffrences ?

  19. akshay says:

    Hi, I am looking 4 job change. I upload my resume on job portals. i just learned the veritas volume manager. but i never faced interview regarding VXVM. I dont know wht kind of que. ask in intrview about VXVM.
    can u pls me to sloved this issue. I just want 2 know what kind of que may be aksed in interview.
    Thanks in advance…

    • Ramdev says:

      Hi Akshay,

      the interview purely depends on kind of environment. Below are some of the basic concepts that you should be aware of:

      – VxVM deamons and purpose.
      – how to initialize disks ( local/san) in veritas
      – how to perform disk maintenance for failed volumes from mirrored volumes ( both root and non-root)
      – how to create log files
      – how to move veritas volumes from one host to another host
      – how to perform online extension/resize for mirror volumes and raid5 volumes
      – how to configure veritas disks with using veritas disk multipath ( DMP)

  20. raj says:


    add me in the network.

  1. September 18, 2015

    […] Read – Resize veritas volume without using vxresize […]

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