Maintenance architecture
Issue 3.4.1 June 2005
245
Avaya DEFINITY Server SI and CSI
Maintenance architecture
Software and maintenance architecture recovery
The Communication Manager maintenance architecture is designed to detect and correct errors
as they occur. This greatly reduces events that can cause a system outage. This also enables
quick identification (fault isolation) to a replaceable subassembly. This automatic assessment is
done constantly, in the background of normal operation, so errors can be addressed early and
proactively. Component self-testing, subassembly self-testing, error detection and correction,
and system reconfiguration and alarming escalation paths are all elements of this architecture.
The system software is designed to recover from intermittent failures, and to continue providing
service with a minimum of disruption. Firmware that runs each circuit pack does similar tasks at
the module level, working tightly with the system software.
Figure 72: Maintenance management architecture
on page 246 shows the various levels of
maintenance strategies that are built into the communication system.
Table 52: Avaya DEFINITY Server SI and CSI hardware availability for two reliability
configurations
1
1. Running Avaya Communication Manager (September 30, 2002 data).
Sub-
system
Standard reliability
(single processor carrier)
High reliability
(CSI only)
Failures/
year
MTBO
(years)
Availability
2
(%)
2. The lower number is the equivalent availability for MTTR of 2 hours, which is attainable with technicians
and spares on site. See also
Reliability and availability
.
Failures/
year
MTBO
(years)
Availability
2
(%)
SI Processor
Complex
0.219
4.6
99.99 /
99.995
<0.01095
>91.3
>99.9995
SCC1 or
MCC1 Media
Gateways
0.153
6.5
99.993 /
99.997
0.0657
15.2
99.997
Содержание Application Solutions
Страница 1: ...Avaya Application Solutions IP Telephony Deployment Guide 555 245 600 Issue 3 4 1 June 2005 ...
Страница 20: ...About This Book 20 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 21: ...Issue 3 4 1 June 2005 21 Section 1 Avaya Application Solutions product guide ...
Страница 22: ...22 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 74: ...Avaya Application Solutions platforms 74 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 106: ...Call processing 106 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 124: ...Avaya LAN switching products 124 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 139: ...Issue 3 4 1 June 2005 139 Section 2 Deploying IP Telephony ...
Страница 140: ...140 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 186: ...Traffic engineering 186 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 204: ...Security 204 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 214: ...Voice quality network requirements 214 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 228: ...Avaya Integrated Management 228 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 239: ...Reliability Issue 3 4 1 June 2005 239 Figure 69 S8700 Media Server in a high reliability configuration ...
Страница 274: ...Reliability and Recovery 274 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 275: ...Issue 3 4 1 June 2005 275 Section 3 Getting the IP network ready for telephony ...
Страница 276: ...276 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 350: ...Implementing Communication Manager on a data network 350 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 356: ...Network recovery 356 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 366: ...Network assessment offer 366 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 367: ...Issue 3 4 1 June 2005 367 Appendixes ...
Страница 368: ...Appendixes 368 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 394: ...Access list 394 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 414: ...DHCP TFTP 414 Avaya Application Solutions IP Telephony Deployment Guide ...