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| What is virtual tape library? |
By:
Jamie Hanson |
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Virtual Tape Library is a back up method, which combines tape back up emulation software with the hard disk and improves back up and recovery solution. VTL is quicker, flexible, reliable and cost effective. It has a virtual tape appliance, server, and necessary software, which emulates conventional tape devices. VTL functions with a disk-to-disk back up and often known as VTL D2D.
VTL has all functions of traditional tape application. It is fast and reaching files is almost instant. The use of disk array the data storage capacity increase to one terabyte. Remote stations or work stations which are connected or configured will be able to access the virtual tape library without employing additional workforce. It can also function primarily as a back up for hard disk and secondarily as a tape back up. The cartridges should be removed from the location to a safer place for highest security. The VTL helps rebuilding the system in case of any mishap.
The recovery time in a physical library is time consuming and VTL is much faster. The technology of tape use has become obsolete as they have an expiry date for a limited period. Therefore, many organizations are adopting virtual tape library as their back up system. The only disadvantage of VTL is it occupies considerable disk space. If only the data can be compressed then the cost may reduce to some extent. The compression appliances are also available today.
In the coming days, Virtual tape library is supposed to adopt a more aggressive compression method. This will permit data compression and side by side keeps track of the blocks it has stored to identify in future. For SME some companies have developed VTL storage technique for disk storage, optical storage, etc. This is an expanding stage of VTL.
Recently customers have begun realizing the value of VTL and have started adopting it. They have concluded that virtualization solves the problem of the management in complex storage network. To be precise virtualization provides a storage system as if it is in a single drive. The same software is used by the host and the virtual system. Multiple systems can function with one physical computer.
An organization can have a computer with high processing power and sufficient memory and by adopting virtualization can run multiple operating systems. This is a very lucrative and cost saving method to adopt.
Expanding company can save cost by adopting iSCSI SAN storage. Conventional storage system has limited capacity and when you think to upgrade all what is required is to install iSAN module to the existing server. It increases storage capacity of the system.
For a perfect back up of data from the hard disk adopt iSCSI virtual tape and to enhance the existing storage, the best available is iscsi storage for further details visit starwindsoftware.com |
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