Setup Thin Provisioning Volumes in Logical Volume Management (LVM) – Part IV

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Babin Lonston

I’m Working as a System Administrator for last 10 year’s with 4 years experience with Linux Distributions, fall in love with text based operating systems.

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13 Responses

  1. Fadal Sayed says:

    Hi Babin,

    First of all thanks for putting this LVM management article together well.

    I could see that you have not done “resize2fs” after extending the thin pool size using “lvextend” command (Ref.: 3rd last screen shot).

    Could you please explain.
    a. Why it is not required to extend its filesystem although thin-pool is also treated as an LV ?
    b. Also, the same matter has been noticed for the snapshot LV too. Kindly clarify.

  2. Jai says:

    What could be the ideal size taken by Meta in case of thin provisioning. In my test environment I can see META % is growing fast. Are there any recommendation size we need to set for thin_pool_chunk_size or poolmetadatasize while creating thin pool.

  3. eaman says:

    Very nice tutorial, well written and easy to follow.
    Bravo!

  4. Maswood Alam says:

    Hi ,

    Could you please make me understand why -s 32M is used to create a vg. I am little bit confused.
    vgcreate -s 32M vg_thin /dev/sdb1
    Thanks

    • // Could you please make me understand why -s 32M is used to create a vg. I am little bit confused. //

      Very easy one volume group (vgs) will be divided into multiple pieces that each piece with 32M size.

      // vgcreate -s 32M vg_thin /dev/sdb1 //

      Your creating the volume group from physical volume which have the each piece with 32 MB size of extend.
      So when you create a logical volume you can use the extend size.

  5. Maswood Alam says:

    Thanks a lot for such a nice article… Helped a lot to understand the topic.

  6. kishore says:

    Good doc

  7. Andres Elizondo says:

    Thanks!

  8. Ok let you know in future

  9. Arunav Ghosh says:

    Hello,
    How to install SVN in RHEL/CENTOS 6.x, Please suggest me.

  10. manoj says:

    good article.

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