See correction at end of review
NetEx HyperIP R5
Network Executive Software, netex.com
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 Excellent 8.9 |
|
| criteria |
score |
weight |
| Administration |
9 |
20% |
 |
| Expandability |
9 |
20% |
|
| Security |
9 |
20% |
|
| Setup |
9 |
20% |
|
| Interoperability |
9 |
10% |
|
| Value |
8 |
10% |
|
|
|
Cost:
Starting at $19,750 for a 10Mbps system
Bottom Line:
The HyperIP is a specialized, easy-to-administer appliance that accelerates and improves the flow of storage traffic across
an IP WAN connection. Companies using TCP/IP WAN connections with storage applications at any rate higher than a T1 connection
should investigate this solution.
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|
About our Reviews and Scoring Methodology
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Remote replication of storage is more popular today than ever, and it promises to become even more important, thanks to government
regulations such as Sarbanes-Oxley that require data replication. To transport the data, some organizations lease dark fiber
and run long-distance FC (Fibre Channel) connections, but this approach can be very expensive, due to the equipment and the
leased lines. The alternative is to use an IP storage protocol over a TCP/IP WAN, but this method also has a drawback, namely
the inherent inefficiency of TCP/IP for transmitting storage protocols.
Storage protocols tend to assume that each packet will get through in the right order and with minimal delay. However, TCP/IP
is not engineered to ensure either of these things; all the packets will get through, but they won’t necessarily be delivered
in the order they’re sent. Instead, they’ll be reassembled at the receiver. Given the amorphous nature of the Internet, timely
delivery is also impossible to guarantee. Both of these conditions play havoc with storage replication over IP via the Internet.
The NetEx HyperIP appliance is designed to address these issues with three functions: counteracting the effects of latency
over a WAN link; compressing data at the block level; and increasing the tolerance of TCP applications for latency, jitter,
bit error rate, and bandwidth variation. It is designed to work across private (point-to-point leased line) WAN connections,
but it will improve tunnels through the Internet as well.
This is a relatively specialized appliance, designed to improve the performance of storage applications over a TCP/IP WAN;
it does, however, work with other types of TCP/IP traffic. The HyperIP doesn't so much accelerate traffic as negate the effects
of a poor WAN connection or network.
Built for storage
The HyperIP is certified to support various major storage applications from companies including EMC, IBM Tivoli, McData, Microsoft,
Network Appliance, NSI, Oracle, and Veritas. Any other vendors’ applications that use storage over IP protocols should work,
as well.
Setting up the HyperIP is straightforward. Note that there must be a HyperIP appliance on each end of a connection. The interface
is simple, although it is not wizard-driven. Each device must be configured separately; there is no unified management of
all devices because they are all on separate networks.
The HyperIP has two basic configurations: gateway mode and proxy mode. In the gateway mode, your storage application uses
the HyperIP as its TCP gateway, and the appliance then routes traffic to the WAN. In the proxy mode, the HyperIP serves as
a proxy to the storage app, which allows greater control of routing, because many applications can specify that only certain
data goes through the proxy and other data does not. In either case, only traffic that uses the HyperIP’s address as gateway
or proxy goes through the HyperIP; normal traffic is not disrupted. The HyperIP can also be configured in a hot standby configuration
for fail-over.
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