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    AFAIK there is no upper limit.<br>
    ZFS will use 1/2 of what is installed by default, you can change the
    zfs_arc_max parameter to make it use more (or less), depening on
    your needs.<br>
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    Gregor<br>
    <br>
    <div class="moz-cite-prefix">Am 07.04.2018 um 10:42 schrieb Hetz Ben
      Hamo via zfs-discuss:<br>
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      <div dir="ltr">Hi,
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                              style="font-family:Arial,Verdana,sans-serif">Just
                              out of curiosity - if I want to build a
                              machine which will have tons of RAM for
                              cache, how much memory can ZFS support?</div>
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