Solaris Tunable Parameters Reference Manual - SCN Research

nfs:nfs3_max_transfer_size_clts
Description
Data Type
Default
Controls the maximum size of the data portion of an NFS
version 3 READ, WRITE, READDIR, orREADDIRPLUS request
over UDP. This parameter controls both the maximum size of
the request that the server returns as well as the maximum size
of the request that the client generates.
Integer (32-bit)
32, 768 (32 Kbytes)
Range 0 to 2 31 -1
Units
Dynamic?
Validation
When to Change
Commitment Level
Bytes
Yes, but this parameter is set per file system at mount time. To
affect a particular file system, unmount and mount the file
system after changing this parameter.
None. However, setting the maximum transfer size on the
server to 0 is likely to cause clients to malfunction or just
decide not to attempt to talk to the server.
Do not change this parameter.
Unstable
nfs:nfs3_max_transfer_size_cots
Description
Data Type
Default
Controls the maximum size of the data portion of an NFS
version 3 READ, WRITE, READDIR, orREADDIRPLUS request
over TCP. This parameter controls both the maximum size of
the request that the server returns as well as the maximum size
of the request that the client generates.
Integer (32-bit)
1048576 bytes
Range 0 to 2 31 -1
Units
Dynamic?
Validation
Bytes
Yes, but this parameter is set per file system at mount time. To
affect a particular file system, unmount and mount the file
system after changing this parameter.
None. However, setting the maximum transfer size on the
server to 0 is likely to cause clients to malfunction or just
decide not to attempt to talk to the server.
Chapter 3 • NFS Tunable Parameters 125