The concept of a virtual tape has been around for a number of years, especially in data centers. In old-fashioned IBM mainframes, today, the same notion of using tape has now shifted into the notion of a virtual tape library. This concept functions just like the original libraries using physical tapes — they appear in a logical sequence and work in the same manner as tapes which used physical recording medium. This means that they have virtual tape drives, tape slots, cartridges for data, labels on a barcode system and robotic arms. The virtual tape library represents an optimized and highly intelligent storage appliance based on disks. This system emulates a regular library, which means that it can introduce this type of tape transparently and seamless integration into any existing tape recovery/backup application. Even in the case of the multiplexed format, a virtual library has the adequate solution. Here are the most important advantages of utilizing the virtual tape library solution, especially if it is combined with cloud computing features.
Physical tape library, even when it is fully automatized, still provides a huge chance of failure. But even without a failure, the same library will spend a lot of time in the backup process. Restoring from tape is always a huge waste of time. Firstly, the tape needs to be found, then loaded and read, until the final the recovery or restore process can begin. Virtual tape library circumvents the entire process by providing a lot quicker system with fewer steps. Additionally, moving the same data to a cloud computing storage can make it less time-consuming, but also continuously available anywhere online.
Recoveries are a lot faster when they are used with a virtual tape library. With it, a single data file will be recovered faster than a regular tape library can even find the file or load the tape which houses it This is thanks to the fact that virtual tapes are loaded immediately, meaning there is no time lag while a new tape is set in its position because all of this occurs digitally. Multiplexed backups (combining several analog signals into a single stream on a single data device) will increase the performance of a backup, but the read time of the same multiplexed tape will be up to twice as long as the initial backup was With a virtual tape library, reading multiplexed date streams is not a problem and the same issue of long read times can be completely avoided.
High Speed Performance:
Using a virtual tape library can speed up the process of backup up to 10 fold. With this, the backup window will also shrink, allowing the servers to backup files a lot faster. By completing the first-tier backups, the second and third-tier servers will get a chance to also enter a backup schedule. This shortening of the same time-consuming process means that a virtual tape library provides a lot more effectiveness for the system.
Management Cost Effective:
The virtual tape library is a lot more cost effective than a physical one according to studies, users will need to acquire 30 times the needed amount of tape for every slot. Having in mind that LTO-3 model tapes now stand at about 100 US dollars, the sheer tape discount is more than evident. But, at the same time, the need for human interaction and management is even greater. Maintenance and direct human involvement are needed for all physical tape solution. In the case of a virtual library, regular and multiplexed formats can be dealt with at a much lower cost without any physical human interventions.
With all incentives of using virtual tape library, it is clear that anyone who is now struggling with an expensive and slow solution for their multiplexed data sources can resolve them in a much more effective way.
Deney Dentel is the CEO of Nordisk Systems, Inc., Our company focuses on cloud computing advance services like recovery or backup application. We also use virtual tape library services to recover lost data much faster for your business continuity.