Free nfsv4 software for linux

Openfiler is a intuitive, powerful browser-based network storage software distribution. Openfiler delivers file-based Network Attached Storage and block-based Storage Area Networking in a single framework.
Openfiler sits atop of CentOS Linux (which is derived from sources freely provided to the public by a prominent North American Enterprise Linux vendor). It is distributed as a stand-alone Linux distribution. The entire software stack interfaces with third-party software that is all open source.
File-based networking protocols supported by Openfiler include: NFS, SMB/CIFS, HTTP/WebDAV and FTP. Network directories supported by Openfiler include NIS, LDAP (with support for SMB/CIFS encrypted passwords), Active Directory (in native and mixed modes) and Hesiod. Authentication protocols include Kerberos 5.
Openfiler includes support for volume-based partitioning, iSCSI (target and initiator), scheduled snapshots, resource quota, and a single unified interface for share management which makes allocating shares for various network file-system protocols a breeze.
Main features:
Powerful block storage virtualization
- Full iSCSI target support, with support for virtual iSCSI targets for optimal division of storage
- Extensive volume and physical storage management support
- Support for large block devices
- Full software RAID management support
- Support for multiple volume groups for optimal storage allocation
- Online volume size and overlying filesystem expansion
- Point-in-time snapshots support with scheduling
- Volume usage reporting
- Synchronous / asynchronous volume migration & replication (manual setup necessary currently)
- iSCSI initiator (manual setup necessary currently)
- Extensive share management features
Support for multiple shares per volume
- Multi-level share directory tree
- Multi-group based access control on a per-share basis
- Multi-host/network based access control on a per-share basis
- Per-share service activation (NFS, SMB/CIFS, HTTP/WebDAV, FTP with read/write controls)
- Support for auto-created SMB home directories
- Support for SMB/CIFS "shadow copy" feature for snapshot volumes
- Support for public/guest shares
- Accounts management
Authentication using Pluggable Authentication Modules, configured from the web-interface
- NIS, LDAP, Hesiod, Active Directory (native and mixed modes), NT4 domain controller
- Guest/public account support
- Quota / resource allocation
Per-volume group-quota management for space and files
- Per-volume user-quota management for space and files
- Per-volume guest-quota management for space and files
- User and group templates support for quota allocation
- Other features
UPS management support
- Built-in SSH client Java applet
- Full industry-standard protocol suite
CIFS/SMB support for Microsoft Windows-based clients
- NFSv3 support for all UNIX clients with support for ACL protocol extensions
- NFSv4 support (testing)
- FTP support
- WebDAV and HTTP 1.1 support
- Linux distribution back-end for any other customizations
- Open source provides you the power to modify and deploy software if you want to do so
Enhancements:
- Updated to kernel 2.6.17. iSCSI CHAP authentication has been added.
- OpenLDAP, Bacula, rsnapshot, and open-iscsi tools have been added.
- Hardware support has been added.
- ATA-Over-Ethernet support (initiator) has been added.
- SUpport for JFS, XFS, and Reiserfs has been added.

Automated support for compound RPC calls is a project which augments RPCGEN to support NFSv4-style compound procedures.

NFSv4 specifies that the RPC calls be batched into a "compound" call. There is no support for this in RPCGEN.

By rearranging the ONC IDL for NFSv4 into AutoGen definitions, these templates will emit the original IDL *plus* all the code to package, send, distribute, collect, return, and dispatch the results.

The distributed program author merely needs to call and supply server procedures for the routines specified in the IDL.

Templates for these calls and service routines is provided, too. The NFSv4 definitions are included.