Before saying about the use of product Nexenta Systems, I would like to tell you what is meant by Network attached Storage . It is nothing but file-level computer data storage connected to a computer network providing data access to heterogeneous network clients. The NAS unit is nothing but a computer connected to the network with the aim of supplying the file based data storage services to other units on the network. This system performs the function of file management, access management, storage management.
Now I would like to provide you NexentaStor information.The Nexenta Systems are designed for use in 2nd tierNAS and in iSCSI (a protocol that allows the clients to send SCSI commands to SCSI storage devices on remote servers) applications. Thus implementing NexentaStorage systems would help in open, low cost, high performance storage as well as dramatically simplified provisioning, expansion, backup, replication and archiving. Many companies are using the Nexenta systems as a primary NAS. The organisation is keep on continuing to add services to its system making it a leader in this industry. Newly included features are improved active directory integration, improved fault management, support for high availability (HA).
The system uses ZFS based software appliance. ZFS is a type of file system and is a open source software. The features of ZFS include support for high storage capacities, integration of the concepts of filesystem and volume management, snapshots and copy-on-write clones, on-line integrity checking and repair, RAID-Z and native NFSv4 ACLs. Thus the feature rich ZFS is implemented in Nexenta systems. This system can targets the full life cycle of your data, with flexible snapshots, retention policies, and helps in tiering and synchronization between various storage systems, and optional compression per storage container.
In addition to these features, NexentaStor keeps on updating the plugins that can be used by these systems to extend its capabilities. The VM Data Center plug-in module dramatically simplifies the management of storage for VMware ESX servers. Administrators remove the risk of spiking the CPUs of the ESX servers and make administration and performance of the snapshot backups far better by removing backups from the ESX servers and putting them onto the NexentaStor NAS/iSCSI solution. More releases of VM Data Center are expected to be released during 2008 and 2009. This plugin is offered at free of cost
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