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--- aix:aix_nfsv4 [2023/10/10 14:00]
manu [Performance]
+++ aix:aix_nfsv4 [2024/02/26 09:43] (current)
manu
@@ Line 187: / Line 187: @@
 Best proctice for AIX LPAR:
   * Processing Units: **1.0**
+  * network options
+<cli prompt='#'>
+# no -p -o tcp_sendspace=524288
+# no -p -o tcp_recvspace=524288
+</cli>
   * nfs options
 <cli prompt='#'>
@@ Line 218: / Line 224: @@
 mtu_bypass    on              Enable/Disable largesend for virtual Ethernet True
 state         up              Current Interface Status                      True
 </cli>
+For info, largesend 'll send packet 64k, that 'll be split on VIOS side (hypervisor), when analyse packet, checksum for 64k return FFFF bad checksum, it normal.
+Example of mount options:
+  # mount -o bg,hard,intr,rsize=131072,wsize=131072,timeo=1200,vers=4,sec=sys nfssrv:/nfspath /mnt
+===== NFS ERROR =====
+  * **Mount error**
+<code>
+NFS lookup failed for server : rpc error 7 (RPC: 1832-010 Authentication error) errno 5
+</code>
+Try:
+<cli prompt='#'>
+# nfso -p -o portcheck=1
+# nfso -p -o nfs_use_reserved_ports=1
+</cli>
+  * **Set range ports for NFS**
+Normally, The usage of NFS ports will be dynamically in AIX.... If you would like to set the port ranges,
+The NFS_PORT_RANGE environment variable can be used to limit the source port of network calls the client makes to the server. If used, this environment variable should be added to the **/etc/environment** file. The format of the environment variable is as follows:
+  NFS_PORT_RANGE=udp[4000-5000]:tcp[7000-8000]

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