Contact Connectivity

Troubleshooting

No matter how ingenious the concept and how smart the equipment – occasional errors are unavoidable in the data center. And finding these requires sophisticated searching. This needs time, a lot of know-how and the necessary equipment.

Professional checking

We can relieve you of tedious troubleshooting. Our measurement methods are differentiated, since many data center components (equipment, data lines, terminations, applications) are interacting. The purpose of the measurements is to accurately locate areas of underperformance and to remedy these, thereby increasing data center performance overall.

 

 


FOM: Fiber Optical Measurement

We test the network connections in your data center – either before installation or after. We deploy five different methods of measurement to ferret out sources of error and enhance the performance.

Spectral analysis

We measure and evaluate the optical performance of each individual WDM system channel. Troubleshooting is in this way quickly narrowed down to a transmission route or the transmission technology.

Measurement/localization of losses

Defects along the glass fiber route will significantly increase attenuation at the point of a defect. This manifests itself by reflecting some of the light. The transit time of such reflected light pinpoints the position of the defect along the length of the fiber.

Dispersion measurement

Dispersion often prevents WDM systems from delivering full performance. Based on the results of our measurements, we can offer suitable compensating fibers.

Ethernet and IP measurements

We offer extensive Ethernet tests for Layer 2, measuring bit errors, throughput, loading and latency. Over and above this, we also carry out specifically configured IP tests on Layer 3. These measurements may be performed on all conventional optical and electrical interfaces.

Measurements in the application

Even flawlessly operating glass fiber links will not protect you against malfunctioning network components. Our measurements cover the upper network layers, in this way to quantify throughput and loading of individual protocol and application data, end-to-end.


SIS: SAN Investigation Service

Our SAN Investigation Services (SIS) will test the performance of your network. For reasons of data protection, we set up our own test environment comprising own data initiators and own data targets.

dEGbox as test data source

Here we use our dEGbox. Behind this is a Linux system, modified by us, with dacoso test software. The boxes have fiber channel interfaces and may be adapted to the specific SAN situation. All this without resorting to sensitive customer data.

Traffic analysis

The traffic is analyzed using the X-Gig Analyzer, a Fiber Channel Analyzer by Finisar. The instrument is capable of reading and analyzing data traffic up to a speed of 16 Gb/sec.

SAN problem analysis

Even if all the individual components in a SAN environment are certified, their interaction may not be without problems. We examine and evaluate logs, statistics, traces etc. in their common context. Errors may in this way be detected, or at least be isolated.

Error log analysis

Faults may be due to the glass fiber cable, the patch fields, the plugs or even due to transmission technology. We are therefore dealing with your data center hardware here, where we scrutinize the error log data of these devices in detail. Special test environments are no longer required to do this.

FICON analysis

We work with FICON protocol analyzers to investigate conversion problems across connections. The data streams are thoroughly tested, problems pinpointed, evaluated and remedied, if necessary. The path to reliable further use of the devices is then cleared.

We can also localize sources of error using our measurements, in Infiniband, Fiber Channel over Ethernet and ESCON.