aix:aix_nfsv4
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aix:aix_nfsv4 [2023/04/04 09:27] manu |
aix:aix_nfsv4 [2024/02/26 09:43] (current) manu |
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| FIXME you can have multiple domains: chnfsdom mydom1,mydom2 | FIXME you can have multiple domains: chnfsdom mydom1,mydom2 | ||
| + | |||
| + | ===== Performance ===== | ||
| + | |||
| + | If you have a dédicated VLAN for NFS, you can use MTU 9000. All devices must set the MTU to 9000 and network ports to 9216. | ||
| + | |||
| + | 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='#'> | ||
| + | [root@testh]/root# nfso -L | ||
| + | NAME CUR DEF BOOT MIN MAX UNIT TYPE | ||
| + | DEPENDENCIES | ||
| + | -------------------------------------------------------------------------------- | ||
| + | nfs_max_read_size 512K 64K 512K 512 512K Bytes D | ||
| + | -------------------------------------------------------------------------------- | ||
| + | nfs_max_write_size 512K 64K 512K 512 512K Bytes D | ||
| + | -------------------------------------------------------------------------------- | ||
| + | nfs_rfc1323 1 1 1 0 1 On/Off D | ||
| + | </cli> | ||
| + | |||
| + | * enable largesend | ||
| + | |||
| + | jumbo_frames yes | ||
| + | large_receive yes | ||
| + | large_send yes | ||
| + | <cli prompt='#'> | ||
| + | [root@testh]/root# lsattr -El ent3 | ||
| + | chksum_offload yes Request checksum offload True | ||
| + | jumbo_frames yes Request jumbo frames True | ||
| + | large_receive yes Request Rx TCP segment aggregation True | ||
| + | large_send yes Request Tx TCP segment offload True | ||
| + | ... | ||
| + | | ||
| + | [root@testh]/root# lsattr -El en3 | ||
| + | ... | ||
| + | mtu 9000 Maximum IP Packet Size for This Device True | ||
| + | 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] | ||
| + | |||
aix/aix_nfsv4.1680593234.txt.gz · Last modified: 2023/04/04 09:27 by manu
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