NFS engine

[fio.git] / HOWTO

diff --git a/HOWTO b/HOWTO
index 2788670ddb8df32e74569fe723cca58489fe8beb..367164b1179fbde7adf4ecc5b01d93072a7cb9da 100644 (file)
--- a/HOWTO
+++ b/HOWTO
@@ -1168,7 +1168,7 @@ I/O type
 
                **1**
                        Backward-compatible alias for **mixed**.
-               
+
                **2**
                        Alias for **both**.
 
@@ -2091,6 +2091,12 @@ I/O engine
                        I/O engine supporting asynchronous read and write operations to the
                        DAOS File System (DFS) via libdfs.
 
+               **nfs**
+                       I/O engine supporting asynchronous read and write operations to
+                       NFS filesystems from userspace via libnfs. This is useful for
+                       achieving higher concurrency and thus throughput than is possible
+                       via kernel NFS.
+
 I/O engine specific parameters
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
@@ -2508,6 +2514,11 @@ with the caveat that when used on the command line, they must come after the
        Specificy a different object class for the dfs file.
        Use DAOS container's object class by default.
 
+.. option:: nfs_url=str : [nfs]
+
+       URL in libnfs format, eg nfs://<server|ipv4|ipv6>/path[?arg=val[&arg=val]*]
+       Refer to the libnfs README for more details.
+
 I/O depth
 ~~~~~~~~~