An Inside Look at the EMC BRS Certified Replication Solution

Replication is the process of copying a large amount of data from different sources. It is a frequently used process across various business practices. A replication solution involves the process of collecting data from multiple sources, storing it and then retrieving it from the storage environment. A replication solution can be used for archiving small amount of data that is typically between 100-150 MB. The data can be stored on a server at a restricted location which must be controlled in order to maintain data integrity. This way, organizations can utilize proven storage devices that offer high storage integrity without too much downside.

Replication offers an alternative to the traditional tape drives. Tape drives are slower, less reliable and expensive. Replication uses a tape drive with a larger capacity. The regular tape drives’ cost is around $50, which is a considerable amount of money for small and medium sized organizations. Cost wise it makes more sense to opt for replication since it provides all the advantages of a tape solution with a fraction of the price tag.

Before the replicating process gets underway it is important to determine which source of data should be used -source of data should be a copy of the original, or comes from a reliable source. On more than one occasions, replicating data from an original onto a hard drive has been an engineer’s nightmare scenario. It is much easier to lose data from a drive than from a tape. While standard tape drives can be programmed with features to compensate for this, replicating tapes could still leave unnecessary gaps in the tape.

The data to be replicated must be a reasonable size. The larger the replication project, the greater the possibility that the target environment’s bandwidth will be insufficient to accommodate the replication.

o Tape-based backup and archive. Tape-based backup and archive is suited for archiving in case the tape is in use, but ideally is also suited for backup. The tape is written in a way that allows multiple sectors to be archived. If these sectors are each sectors is large, then the overall backup time is relatively quick. However, if the sectors are of small size, then the backup time will be much slower. Tapes are also highly prone to data corruption during transfer. Whatever the form of the tape, the tape must be erased before any copies of the data are made. In order to erase the data, the process of tape erase must be performed. This means either erasing the entire tape or saving just a section of the tape. Both of these actions will leave the data unrecoverable.

o Optical backup.Optical backup capturing the data on the hard disk or other device used to store data is known as a backup. The hard disk must be erased to reveal the data contained on it. The benefit of optical backup is that it is lossless. The hard drive will erase the entire data without any effort of reporting the information. With this form of backup, the user does not need to be concerned with resizing the data on the hard disk. The person interested in restoring the data only needs to have the ability to erase the information. In the event the person erases the information, then the person can recover the data later.

o Closed-loop system. A closed-loop system can be thought of as a model for how floppy disks work. In this system, the data is erased on the hard disk multiple times to reveal the older saved data. The hard disk is made available to the system software which will make it available again when needed. As such, the closed-loop system provides advanced features with extensive memory. In the event the hard disk crashes, the closed-loop system provides a new hard disk with the newest data.

floppy disks are an example of a closed-loop system. While this is one of the most common types of floppy disks, it is far from the only such system. There are alsoanimated video games cartridges, music cartridges, and video games.

Know More about Floppy Disk Components.

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