diff --git a/machines/zix790prors/hardware-configuration.nix b/machines/zix790prors/hardware-configuration.nix
index d371517..ade54dd 100644
--- a/machines/zix790prors/hardware-configuration.nix
+++ b/machines/zix790prors/hardware-configuration.nix
@@ -31,7 +31,7 @@
       scrub.enable = true;
       deduplication = {
         enable = true;
-        hashTableSizeMB = 32;
+        hashTableSizeMB = 128;
         verbosity = "err";
       };
     };
@@ -44,7 +44,7 @@
       scrub.enable = true;
       deduplication = {
         enable = true;
-        hashTableSizeMB = 32;
+        hashTableSizeMB = 256;
         verbosity = "err";
       };
     };