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SAN Extensions
SAN Extension: keeping it all in sync. Information is the life-blood of business and a Storage Area Networks (SAN) can assure high-availability and redundancy to keep information flowing. SAN technologies provide high-bandwidth, low-latency movement of block data from servers to disk arrays or tape drives. SAN extension connects SANs over wide-area networks for remote data mirroring, backup and file sharing. The application requires an affordable, high-performance method of interconnecting multiple SAN islands over distance that will functions within the existing datacom/telecom infrastructure.
SAN extension solutions use a variety of methods to extend Fibre Channel or IP-based SANs over existing MANs and WANs, including:
In a mirrored SAN extension environment, the data mirroring process continuously copies data from primary storage to a remote storage device. With synchronous mirroring, data isn't written to primary storage until remote storage confirms it has received the mirrored data. This process syncs primary and secondary storage but also introduces latency because of the checking process. (With asynchronous mirroring, the primary device does not wait for confirmation, which could result in a data mismatch in the event of a network failure).
In addition to latency, remote synchronous disk mirroring involves very large volumes of data being transferred between sites. This means that the MAN or WAN needs to perform to the same level as an in-building SAN.
The Anue Fibre Channel Latency Generator has the high bandwidth and high latency capabilities required for SAN extension testing. Whether you are developing or implementing a SAN extension solution, you must validate that it delivers the required throughput and maintains data integrity in the presence of significant latency. High bandwidth and high latency . . . this is where Anue excels!
With the Anue Latency Generator, you can simulate a live SAN extension solution in a lab environment. It doesn’t matter if you’re emulating Fibre Channel, Gigabit Ethernet or SONET/SDH . . . Anue can do it all on one hardware platform!
Anue Network Emulators:
Storage networks have been elevated to the status of competitive weapons. Robust, redundant storage networks with geographically-dispersed data centers are becoming essential to ongoing business operations. If SAN extension is a priority for your corporation, call Anue Systems today and let us show how we can help you! White Paper |
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GCH Test & Computer Services LtdProgress Business Centre, 5 Whittle Parkway, Slough, Berks SL1 6DQ, UK Tel: +44 1628 55 99 80 , Fax: +44 1628 55 99 90 |
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