System Administration Guide: Resource Management and Network Services

Large Files

Starting with 2.6, the Solaris release supports files that are over 2 Gbytes. By default, UFS file systems are mounted with the -largefiles option to support the new functionality. Previous releases cannot handle files of this size. See How to Disable Large Files on an NFS Server for instructions.

If the file system on the server is mounted with the -largefiles option, no changes need to occur on a Solaris 2.6 NFS client in order for it to be able to access a large file. However, not all 2.6 commands can handle these large files. See largefile(5) for a list of the commands that can handle the large files. Clients that cannot support the NFS version 3 protocol with the large file extensions cannot access any large files. Although clients that run the Solaris 2.5 release can use the NFS version 3 protocol, large file support was not included in that release.