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OpenFiler

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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 System and is based on the rPath Linux distribution. it is free software licenced under the GNU General Public Licence version2. Its software stack interfaces with open source third party software. Hard Requirements: OpenFiler needs at least a 500MHz CPU, 256MB of RAM, 1.2GB hard disk space, an optical dirve and a Fast Ethernet network interface. OpenFiler 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 NT4 domain controller and Hesiod. Authentication protocols includes Kerberos5. Openfiler includes support for volume based partitioning, Ext3, JFS and XFS as on disk nvaive filesystems. poin...

Data Center Using SAN/NAS

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A data center  is a facility used to house computer systems and associated components, such as telecommunications and storage system. It generally includes redundant or backup power supplies, redundant data communications connections, environmental controls (e.g. air conditioning, fire supperssion) and security devices. The TIA-942 describe the requirements for the data center infrastructure. The simplest is a Tire 1 data center, which is basically a computer room, following basic guidelines for the installation of computer systems. The most stringent level is a Tire 4 data center, which is designed to host mission critical computer systems, with fully redundant subsystems and compartmentalized security zones controlled by biometirc access controls methods. Another consideration is the placement of the data center in a subterranean context, for data security as well as environmental considerations such as cooling requirements.  Network Attached Storage (NAS) is file leve...