Details
We took the final barrier for you, now you just have to plug it in and power it up…
Ever since the introduction of open source, there has been one common challenge that binds them all..
the lack of turn-key open source appliances,so if you like the software you will have to build your own server, firewall, phone system or whatever open source appliance you require.
In the end that is where the real cost is as you need to find out where to buy quality hardware, test and install the software on it…
And then? Well most of the time things aren’t going as planned.
So when we introduced our first appliances we had two things in mind:
+ and make it affordable.
With our OPN line appliances we added another dimension to this philosophy
and for the first time open source can finally win the battle from the commercial competitors.
Take a look for yourself and be amazed!
19" 1U rack mountable, OPN line enclosureOur 19" rack enclosure is a durable 1U powder coated rack mountable enclosure, especially designed and build for our OPN line of open source appliances.
The highligts of the OPN rack enclosures are:
+ powder coated metal (for more information about powder coating, see this wiki)
+ a clean front panel without visable screws
+ high quality finish with chrome handles and power led
+ laser engraved port labels and logo's (oem options are available)
+ power connector located at the rear of the unit
+ good heat dissipation (passive, no fan required)
+ build for silent, fanless network appliances
Dimensions (WxHxD) :
485mm x 44mm x 204mm
Weight :
approx. 3,5Kg
Standard colors:
off-white front panel (RAL9002) / dark blue base unit (RAL5003)
Zen Load Balancer
Zen load balancer is a free, open source customized distribution of Debian tailored for use as a load balancer.
Load balancing is a technique to distribute workload evenly across two or more computers, network links, CPUs, hard drives, or other resources, in order to get optimal resource utilization, maximize throughput, minimize response time, and avoid overload. Using multiple components with load balancing, instead of a single component, may increase reliability through redundancy. The load balancing service is usually provided by a dedicated program or hardware device .
It is commonly used to mediate internal communications in computer clusters, especially high-availability clusters. If the load is more on a server, then the secondary server takes some load while the other is still processing requests.
Currently all OPNzen appliances are delivered with version v2rc3.1 of the software.
FeaturesZen load balancer includes many features available in expensive commercial products, but remains easy to configure via a webinterface. The following is a list available in the current version:
Support
Professional support is available via the creators of zen load balancer : link
Documentation
Documentation is available on the project site : link
Screenshot(s)
open in separate window
Performance & Features table
|
Model |
OPN Zen Rack Edition |
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Performance |
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Max Balancer Throughput |
1000 Mbps (1Gbps) |
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Requests per second (HTTP/HTTPS) |
~10.000 |
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CPU |
Intel(R) Atom(TM) CPU Z530 @ 1.60GHz |
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Layer 7 Current connections |
~15.000 |
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Layer 7 Max current connections |
30.000 |
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Max Servers Supported by Virtual Server/ Virtual Servers |
16 / unlimited |
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RAM Memory |
512 |
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L7 Load Balancing Algorithm |
Round Robin, Weight, priority, hash |
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L7 Load Balancing Protocols |
TCP & UDP |
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L3 Load Balancing Method |
Routing for multiple uplinks / providers |
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L3 Load Balancing Algorithm |
Weight, priority |
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Advanced profiles for load balacing |
TCP, UDP, HTTP, HTTPS & DATALINK |
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Network ports |
3 X GbE |
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Rack-mountable |
Yes, 1U |
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Compact flash (diskless storage) |
Yes |
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Typical Power Consumption (Watts) |
12 |
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Key Features |
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Layer 7/3 Load Balancing |
Yes |
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Custom checks for backend status |
Yes |
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Outlook Web Access 2010 |
Yes |
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L7 Support for MS Terminal Services |
Yes |
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Active/Pasive Cluster |
Yes |
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Automatic replication configuration |
Yes |
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VLAN Trunking (802.1Q) |
Yes |
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Free Upgrades |
Yes (through project repository) |
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TCP Load Balancing |
Yes |
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UDP Load Balancing |
Yes |
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Uplink Load Balancing |
Yes |
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SSL offload |
Yes |
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Payment cart industry (PCI support) |
Yes |
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L7 Load Balancing with sNAT |
Yes |
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Specifications
| SKU | OPN-53002-R |
|---|---|
| Enclosure Type | Rack mountable [19"] |
| Dimensions [ W x H x D ] | 485mm x 44mm x 204mm |
| Firmware | Zen Loadbalancer |
| CPU type | Intel Atom Z530P 1.6Ghz |
| Memory | 512Mb |
| Ethernet ports [total] | 3 |
| Fast Ethernetports [10/100Mbps] | None |
| Gbit Ethernetports [100/1000Mbps] | 3 |
| SFP+ 10Gbit [DA/SR] ports | No |
| Remote Management | No |
| Other ports | 1x Serial Console, 2x USB 2.0 |
| Storage Type [Default] | Flash Memory |
| Storage Size [Default] | 2Gb SLC |
| Package contents | OPN-line appliance, Powersupply, Configuration cable, Quickstart guide, DVD with firmware & tools |

