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Editorial Team
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Asked: 2026-05-24T16:31:37+00:00

i want to know where a session is stored when i set it in

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i want to know where a session is stored when i set it in asp.net application. Does it consume RAM or hard disk space?
Actually, i save a datatable into a session variable. I save it into session because calculation of the datatable takes long time. In order not to calculate the datatable again, i get it from the session.
But i am curious about the time when the datatable will grow much larger than now. Will it stuck the ISS?
Thanks

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1 Answer

  1. Editorial Team

    Session state in ASP.NET is by default stored in process memory (which is RAM).

    You can change this in web.config by altering the values of the configuration/system.web/sessionState element:

    <configuration>
  <system.web>
    <sessionState mode="...">
  </system.web>
</configuration>

    The available options are:

    • InProc (default)
    • StateServer – will store in a seperate process which can be on a seperate computer
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    • SqlServer – will store state information in a sql server database
    • Custom – allows you to provide your own session store
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