diff --git a/include/NVMeBasicContext.hpp b/include/NVMeBasicContext.hpp
index 6b0a425..6953dd7 100644
--- a/include/NVMeBasicContext.hpp
+++ b/include/NVMeBasicContext.hpp
@@ -22,4 +22,10 @@
     boost::asio::io_service& io;
     boost::asio::posix::stream_descriptor reqStream;
     boost::asio::posix::stream_descriptor respStream;
+
+    enum
+    {
+        NVME_MI_BASIC_SFLGS_DRIVE_NOT_READY = 0x40,
+        NVME_MI_BASIC_SFLGS_DRIVE_FUNCTIONAL = 0x20,
+    };
 };
diff --git a/src/NVMeBasicContext.cpp b/src/NVMeBasicContext.cpp
index 29dab7a..08333c5 100644
--- a/src/NVMeBasicContext.cpp
+++ b/src/NVMeBasicContext.cpp
@@ -397,6 +397,15 @@
     }
 
     uint8_t* messageData = static_cast<uint8_t*>(msg);
+
+    uint8_t status = messageData[0];
+    if ((status & NVME_MI_BASIC_SFLGS_DRIVE_NOT_READY) ||
+        !(status & NVME_MI_BASIC_SFLGS_DRIVE_FUNCTIONAL))
+    {
+        sensor->markFunctional(false);
+        return;
+    }
+
     double value = getTemperatureReading(messageData[2]);
     if (!std::isfinite(value))
     {