Chapter 6. Using the Network File System with AS/400 FileSystems
There are several exceptions to using AS/400 file systems with NFS on various
clients. This is because you are able to export several different file systems on an
AS/400 NFS server. Each file system has its own set of requirements and
deviations through NFS from its normal functioning state. The purpose of this
chapter is to make you aware of these differences for the specific file system you
are accessing through NFS.
With OS/400 Version 4 Release 4 (V4R4), the following file systems received
enhancements to support stream files larger than 2 gigabytes:
vLibrary File System (QSYS.LIB)
vOpen Systems File System (QOpenSys)
vRoot(/)
vUser-Defined File System (UDFS)
NFS on the AS/400 also supports these large files in V4R4 with the exception of
byte-range locking. The fnctl() API will only function with these files from an NFS
client if the byte-range locking sizes and offsets fall under the 2 GB limit.
For detailed information on the file systems that NFS supports and large file
support, please refer to the
Integrated File System Introduction,
SC41-4711.

RootFile System (/)

Figure 47. The
Root
(/) file system accessed through the NFS Server
© Copyright IBM Corp. 1997, 1999 55
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