Table 6-11
Maximum number of application assurance accounting objects
configured for collection by a 5620 SAM Statistics Auxiliary
Number of Active
Auxiliary Statistics
Collectors
Maximum number of application assurance accounting objects configured for
collection per 15-minute interval
Statistics collection with SAM Database
Statistics
Collection with
Auxiliary
Database
8 CPU Cores, 16GB RAM
12 CPU Cores,
24GB RAM
12 CPU Cores,
32GB RAM
1
5,000,000
7,500,000
5,000,000
2
5,000,000
15,000,000
10,000,000
3
5,000,000
15,000,000
20,000,000
To compute the number of CPU cores available on the workstation, the following
command can be used:
# dmidecode | grep "Core Count" | /usr/bin/awk '{SUM += $3} END {print SUM}'
In situations where 5620 SAM is asked to collect more application assurance accounting
records than it can process in the specified retrieval period, the extra statistics will not be
retrieved from the network.
Exporting performance and accounting statistics records
There are two methods to export accounting and performance statistics from 5620
SAM; registerLogToFile, and findToFile. The registerLogToFile method is the preferred
method and is required for situations where more than 400,000 accounting statistics
records are retrieved in 15 minutes or 500,000 performance statistics are retrieved in 15
minutes. This recommendation also minimizes collection latency and reduces system
load.
5620 SAM Database hardware platform requirements
To collect large numbers of statistics using the SAM Database, there are RAM and
storage I/O requirements for the 5620 SAM Database workstation. The table below
highlights these requirements.
Scaling
Scaling guidelines for statistics collection
Statistics collection
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5620 SAM
3HE-09809-AAAG-TQZZA 13.0 R7
Issue 1
December 2015
6-13
