From: Tom Hughes <tom@compton.nu>
Date: Wed, 3 Apr 2019 17:41:29 +0000 (+0100)
Subject: Enable NVME request merging on odin
X-Git-Url: https://git.openstreetmap.org/chef.git/commitdiff_plain/3efff1ae19d848069c3cd3a793e5e0edf18c66ca?ds=inline

Enable NVME request merging on odin
---

diff --git a/roles/odin.rb b/roles/odin.rb
index e31bc6923..9de9c9341 100644
--- a/roles/odin.rb
+++ b/roles/odin.rb
@@ -26,6 +26,15 @@ default_attributes(
         :address => "2001:978:2:2C::172:F"
       }
     }
+  },
+  :sysfs => {
+    :md_tune => {
+      :comment => "Enable request merging for NVMe devices",
+      :parameters => {
+        "block/nvme0n1/queue/nomerges" => "1",
+        "block/nvme1n1/queue/nomerges" => "1"
+      }
+    }
   }
 )