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Expand the pool storage.

  • 1.  Expand the pool storage.

    Posted 6 days ago

    Hi, 

          I have a IBM V5000E which has 10 harddisk of 900 Gb configured in raid5 in a one pool. ( actual savailable stockage5.7 Tb). I like to expand the pool by adding a 900 GB . i have searched in the internet how to do but i didnt fin the procedure. could you please tell me how to do this this please ? 

     

    advance thanks

    Viresh



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    Vireshkanth NAGARATHNAM
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  • 2.  RE: Expand the pool storage.

    Posted 6 days ago

    two questions;

    1- What is your current code level? 
    2- Raid5 or DRaid5?



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    Nezih Boyacioglu
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  • 3.  RE: Expand the pool storage.

    Posted 6 days ago

    Hi, 
         It is in RAID 5 . 



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    Vireshkanth NAGARATHNAM
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  • 4.  RE: Expand the pool storage.

    Posted 6 days ago

    unfortunately Raid5 arrays cannot expandable. If it's DRaid5 (distributed raid 5 array) you can expand it with expandarray command 



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    Nezih Boyacioglu
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  • 5.  RE: Expand the pool storage.

    Posted 6 days ago

    Hi @Nezih Boyacioglu
                                             Thnaks for your answer.So that means , i need to create another pool with 3 new disk in Raid 5 and need to attach with the esxi . 

    thanks any way. 

    Best regards, 

    Viresh



    ------------------------------
    Vireshkanth NAGARATHNAM
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  • 6.  RE: Expand the pool storage.

    Posted 6 days ago

    yes, you can do that but you don't need to create new pool, you can add 3 disk Raid5 to the same pool. 



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    Nezih Boyacioglu
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  • 7.  RE: Expand the pool storage.

    Posted 5 days ago

    Hi Nezih,

    How to add the new RAID5 to same pool.
    Thanks advance



    ------------------------------
    Adalberto Barbosa
    Senior Systems Engineer
    Blue Chip Portugal
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  • 8.  RE: Expand the pool storage.

    Posted 5 days ago

    right click to your pool and choose "add storage"



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    Nezih Boyacioglu
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  • 9.  RE: Expand the pool storage.

    Posted 5 days ago

    Hi @Nezih Boyacioglu

                                              That means, is i add the new disk to existing pool , it won't be parts of RAID , ti will just recognize as a single disk in a pool ? because i don't have draid to add disks ? 

    Advance thanks . 

    Best regards, 

    Viresh 



    ------------------------------
    Vireshkanth NAGARATHNAM
    ------------------------------



  • 10.  RE: Expand the pool storage.

    Posted 5 days ago
    Edited by Uwe Schreiber 5 days ago

    Hi Viresh,

    as soon you select "Add Storage", the wizzard which is getting opened will assist you, creating a new MDisk based on the number of disks you select (in your case 3), and will add this new MDisk to the Pool (MDisk Group).

    Regards, Uwe



    ------------------------------
    Uwe Schreiber
    System Engineer / Solution Architect
    SVA System Vertrieb Alexander
    Wiesbaden
    ------------------------------



  • 11.  RE: Expand the pool storage.

    Posted 5 days ago

    Hi @Uwe Schreiber
                                        Thanks for your answer. I got it now, that means , it will create a new mdisk with a raid configuration , but it will be in a same pool  and will be shown by esxi as a same pool with a increased stockage. 

    Thanks you very much for your answers. 

    Best regards, 

    Vireshkanth NAGARATHNAM



    ------------------------------
    Vireshkanth NAGARATHNAM
    ------------------------------



  • 12.  RE: Expand the pool storage.

    Posted 5 days ago

    Hi Viresh,

    yes, the newly created mdisk will show up in the pool and the size of the pool as well as the free capacity will increase.

    In case of creating new vdisks or increasing the size of existing vdisks, the additional mdisk capacity will get used.

    Further more, the intra tier balancing alghorithm of the storage may migrate extents from the existing mdisk to the new mdisk for load balancing purposes.

    Regards, Uwe



    ------------------------------
    Uwe Schreiber
    System Engineer / Solution Architect
    SVA System Vertrieb Alexander
    Wiesbaden
    ------------------------------



  • 13.  RE: Expand the pool storage.

    Posted 2 days ago

    @Uwe Schreiber

                                   Thank you very much for this help. I have already pass the request to purchase the disks.  I have on last question. Is this expansion will not affect the existing pool ? Because i have more than 5O virtual machines running in the prod. 

    Advance thanks . 

    best regards, 

    Vireshkanth NAGARATHNAM



    ------------------------------
    Vireshkanth NAGARATHNAM
    ------------------------------



  • 14.  RE: Expand the pool storage.
    Best Answer

    Posted 2 days ago

    Hi Viresh,

    the expansion of the pool by adding a new array / mdisk will not touch the existing array / mdisk.

    What will haben after some time, you may notice that extents got migrated from the existing array / mdisk to the new array / mdisk.

    This is done by the intra tier pool balancing alghorithm included in the Flashsystem code and is a normal behaviour (works as designed).

    Regards,  Uwe



    ------------------------------
    Uwe Schreiber
    System Engineer / Solution Architect
    SVA System Vertrieb Alexander
    Wiesbaden
    ------------------------------



  • 15.  RE: Expand the pool storage.

    Posted 2 days ago

    hi @Uwe Schreiber

                                        Thank you very much for you help and informations. 

    Best regards, 

    Vireshkanth NAGARATHNAM



    ------------------------------
    Vireshkanth NAGARATHNAM
    ------------------------------



  • 16.  RE: Expand the pool storage.

    Posted 4 days ago

    Hi Vireshkanth its possible you tell me the correct code level of V5000E



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    Adalberto Barbosa
    Senior Systems Engineer
    Blue Chip Portugal
    ------------------------------



  • 17.  RE: Expand the pool storage.

    Posted 2 days ago

    @Adalberto Barbosa,

                                            the code level of the system is =>

    Niveau actuel du logiciel : version 8.2.1.3 (build 147.12.1904011742000)

    Best regards,

    Vireshkanth NAGARATHNAM



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    Vireshkanth NAGARATHNAM
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