diff --git a/man4/smartpqi.4 b/man4/smartpqi.4
index 09dac1356..cb3b74460 100644
--- a/man4/smartpqi.4
+++ b/man4/smartpqi.4
@@ -197,9 +197,12 @@ $ \c
 The
 .I ssd_smart_path_enabled
 attribute is read-only.
-.\" FIXME
-.\" What is "ioaccel"?  This string appears nowhere in man-pages HEAD.
 This attribute is for ioaccel-enabled volumes.
+(Ioaccel is an alternative driver submission path that allows the
+driver to send I/O requests directly to backend SCSI devices,
+bypassing the controller firmware.
+This results in an increase in performance.
+This method is used for HBA disks and for logical volumes comprised of SSDs.)
 Contains 1 if ioaccel is enabled for the volume and 0 otherwise.
 .IP
 For example: