13 Mart 2008 Perşembe

Openfiler



Openfiler is an operating system that provides file-based network-attached storage (NAS) and block-based Storage area network (SAN). It was created by Xinit Systems, and is based on the rPath Linux distribution. It is free software licensed under the GNU General Public License version 2. Its software stack interfaces with open source third-party software.

Features

Networking protocols supported by Openfiler include: NFS, SMB/CIFS, HTTP/WebDAV, FTP and iSCSI (initiator). Network directories supported by Openfiler include NIS, LDAP (with support for SMB/CIFS encrypted passwords), Active Directory (in native and mixed modes), Windows NT 4 domain controller and Hesiod. Authentication protocols include Kerberos 5. Openfiler includes support for volume-based partitioning, Ext3, JFS and XFS as on-disk native filesystems, point-in-time snapshots with scheduling, quota-based resource allocation, and a single unified interface for share management which makes allocating shares for various network file-system protocols easy.

The following are just some of the features currently available in Openfiler:

A. Block-based virtualization
1. Point-in-time snapshot support with scheduling
2. Online volume size expansion (testing)
3. Volume usage reporting
4. Support for multiple volume groups for optimal storage allocation
5. iSCSI initiator (manual currently)
6. Volume migration & replication (manual currently)

B. Accounts management
1. Authentication using Pluggable Authentication Modules, configured from the web-interface
2. NIS, LDAP, Hesiod, Active Directory (native and mixed modes), NT4 domain controller
3. Guest/public account support

C. Quota / resource allocation
1. Per-volume group-quota management for space and files
2. Per-volume user-quota management for space and files
3. Per-volume guest-quota management for space and files
4. User and group templates support for quota allocation

D. Share management
1. Per-volume based share creation
2. Multi-level share directory tree
3. Multi-group based access control on a per-share basis
4. Multi-host/network based access control on a per-share basis
5. Per-share service activation (NFS, SMB/CIFS, HTTP/WebDAV, FTP)
6. Support for auto-created SMB home directories

E. Industry-standard protocol suite
1. CIFS/SMB support for Microsoft Windows-based clients
2. NFSv3 support for all UNIX clients with support for ACL protocol extensions
3. NFSv4 support (testing)
4. FTP support
5. WebDAV and HTTP 1.1 support
6. Linux distribution back-end for any other customizations
7. Open source provides you the power to modify and deploy software if you want to do so

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