External Storage System - Cisco ASR 5000 series Product Overview

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External Storage System

ESS supports generation of EDR/UDR/FDR (xDR) files from the chassis. To store generated xDR files, on the ASR

5000 chassis, the system allocates 512 MB of memory on the packet processing card's RAM. The generated xDRs are

stored in CSV format in the /records directory on the packet processing card RAM. These generated xDRs can be used

for billing as well as for generation of reports to analyze network usage and subscriber trends. As this temporary storage

space (size configurable) reaches its limit, the system deletes older xDRs to make room for new xDRs. Setting gzip file

compression extends the storage capacity by approximately 10:1.

Because of the volatile nature of the memory, xDRs can be lost due to overwriting, deletion, or unforeseen events such

as power or network failure or unplanned chassis switchover. To avoid loosing charging and network analysis

information, configure the CDR subsystem in conjunction with the External Storage System (ESS) to offload the xDRs

for storage and analysis.

For more information on the ESS, refer to the ESS Installation and Administration Guide.

External Storage System ▀

Cisco ASR 5000 Series Product Overview ▄