*** UNIX MANUAL PAGE BROWSER ***

nfsd(8) System Manager's Manual nfsd(8) NAME nfsd - The remote NFS compatible server SYNOPSIS /usr/sbin/nfsd [-t num_tcpthreads] [-u num_udpthreads] The following form of the nfsd command is not recommended and is sup- ported only for backward compatibility: /usr/sbin/nfsd [numthreads] FLAGS Specifies a number of TCP server threads to spawn. A value of 8 is recommended as a start. Specifies a number of UDP server threads to spawn. A value of 8 is recommended as a start. DESCRIPTION The nfsd daemon runs on a server machine to service NFS requests from client machines. The daemon spawns a number of server threads that process NFS requests from client machines. At least one server thread must be running for a machine to operate as a server. There are two types of server threads: a server thread that processes NFS requests sent using TCP and a server thread that processes NFS re- quests sent using UDP. This is necessary because the kernel paths for UDP and TCP NFS messages are different. The -t option specifies the number of TCP threads to run and the -u option specifies the number of UDP threads to run. The optimal number of TCP server threads and UDP server threads depends on many factors. See nfsiod(8) for more infor- mation. The server threads are implemented as kernel threads; they are part of Process ID 0, not the nfsd process. The ps axml command displays idle server threads under PID 0. Idle threads will be waiting on nfs_udp_wait or nfs_tcp_wait. Therefore, if 16 server threads are con- figured only 1 nfsd process is displayed in the output from the ps com- mand, although 16 server threads are available to handle NFS requests. Files that are larger than 2 gigabytes are exported as 2 gigabyte files when accessed by NFS Version 2. NFS Version 2 is a 32-bit protocol, therefore, the size and offset fields are 32-bit quantities (on Alpha AXP UFS they are 64-bit quantities). Use caution when accessing files larger than 2 gigabytes from NFS clients. EXAMPLES In the following example, 16 threads are run (8 for TCP and 8 for UDP): nfsd -t 8 -u 8 FILES Specifies the command path Specifies the file for logging startup er- rors (before the server threads are started). Specifies the file for logging NFS errors (after the server threads are started). RELATED INFORMATION Commands: mount(8), mountd(8), nfsstat(8), portmap(8) System calls: nfssvc(2) delim off nfsd(8)