Storage Management

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FCTOOL and multitenant

  • 1.  FCTOOL and multitenant

    Posted Thu January 16, 2020 11:18 AM
    Hi,
    I have a SAP HANA installation in version 2.0 SPS04 with multitenant and we want to use FCTOOL.

    We want the different tenants to use differents filesystems, so in case of filesystem full of one tenant do not affect other tennants.

    Could we configure FCTOOL in this scenario? 

    Example:  SID -> AAA
                        tenant 1 -> BBB
                        tenant 2 -> CCC
    Filsystem layout:
        /hana/data/AAA
       /hana/log/AAA
       /hana/data/BBB
       /hana/log/BBB
       /hana/data/CCC
       /hana/log/CCC

    Regards,
    Laurio Perdiguero



    ------------------------------
    Laurio Perdiguero
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  • 2.  RE: FCTOOL and multitenant

    Posted Thu January 16, 2020 03:32 PM
    Dear Laurio, thank you for your question.
    The problem is, that HANA does not store tenants into different mount points, instead it stores it under default /hana/data/SID/...
    There is no way to specify a directory/mp during creation of a tenant, to my knowledge ...
    So no, fctool does only use the primary mp, no sub-mp.
    Best regards, Markus

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    Markus Fehling
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  • 3.  RE: FCTOOL and multitenant

    Posted 30 days ago
    Hi,
    A tenant could be parametrized at global.ini of the tenant ( ../shared/SID/global/hdb/custom/config/DB_XXX/global.ini) with  different parameters of:
       basepath_logvolumes
       basepath_datavolumes

    It requires a restart of the tenant. 

    https://help.sap.com/viewer/009e68bc5f3c440cb31823a3ec4bb95b/2.0.04/en-US/514ab38a2e574c85a70ebba80ff16d99.html


    Regards,
    Laurio Perdiguero

    ------------------------------
    Laurio Perdiguero
    ------------------------------



  • 4.  RE: FCTOOL and multitenant

    Posted 30 days ago
    Hi Laurio,
    I found the details in 
    https://help.sap.com/doc/0987e3b51fb74e5a8631385fe4599c97/2.0.04/en-US/SAP_HANA_Tenant_Databases_en.pdf
    chapter 2.8 Database-Specific Configuration Parameters
    thanks for the hint.
    FCtool supports only one MP, there is no plan to enhance this yet, I am sorry.
    --Markus

    ------------------------------
    Markus Fehling
    ------------------------------