2. USAGE CONSIDERATIONS › 2.3 Use Within the Information Structure › 2.3.4 Installation Environment Analysis › 2.3.4.1 Environment: Reliability

2.3.4.1 Environment: Reliability

 
The reliability information retained by the CA MICS Network
Analyzer is written to SMF by Tivoli NetView Hardware
Monitor/NPDA and NPM, CA NetMaster NEWS, and CA NetSpy. The
NetView Hardware Monitor and CA NetMaster NEWS reliability
data consists of statistics, events, and alerts.  Statistics
are temporary errors and traffic data.  Events include
permanent errors and statistics whose error-to-traffic ratios
exceed installation-defined thresholds.  Alerts are any
conditions that require immediate operator attention.
NetView Hardware Monitor/NPDA and CA NetMaster recording
filters determine which network occurrences are classified as
events or alerts.  The reliability information from NPM
network data and CA NetSpy NCP interface data consists of
counts for network errors (e.g., time-out-to-poll), and the
number of characters and PIUs that are retransmitted by the
NCP.
 
Be aware that reliability information is NOT availability
information.  While permanent errors resulting in outages of
many of the hardware and software components of the network
are recorded in the SNTNEF File, there is no corresponding
notation of normal activation or deactivation.  Thus,
availability reporting can be done only by accessing
information, such as network logs, which are outside the
scope of the CA MICS Network.
 
The following sections suggest key data elements, exception
conditions, reports, and sample analysis which may be helpful
in the management of reliability:
 
   1 - Reliability Indicators
   2 - Reliability Exceptions
   3 - Reliability Reports
   4 - Reliability Analysis