Reliability and Recovery
244 Avaya Application Solutions IP Telephony Deployment Guide
Avaya DEFINITY Server R
Note:
Note:
This availability does not include availability of the customer’s data networks,
PSTN contributions, or contributions due to power outages. A conservative
MTTR of 4 hours is assumed, which includes travel and repair time.
Table 51: Avaya DEFINITY Server R hardware availability for three reliability
configurations
1
1. Running Avaya Communication Manager (September 30, 2002 data).
Sub-
system
Standard reliability
(single processor complex)
High reliability
(duplicated processor complex)
Critical reliability
(duplicated processor complex)
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
(%)
Failures/
year
MTBO
(years)
Availability
2
(%)
G3R
Processor
Complex
0.153
6.5
99.993 /
99.997
<0.0109
5
>91.3
>99.9995
<0.01095
>91.3
>99.9995
SCC1 or
MCC1
Media
Gateways
0.153
6.5
99.993 /
99.997
0.0657
15.2
0.99997 /
99.999
<0.01095
>91.3
>99.9995
CSS Intf
0.1095
9.1
99.995 /
99.998
0.0876
11.2
99.996 /
99.998
<0.01095
>91.3
>99.9995
Summary of Contents for Application Solutions
Page 1: ...Avaya Application Solutions IP Telephony Deployment Guide 555 245 600 Issue 3 4 1 June 2005 ...
Page 20: ...About This Book 20 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 21: ...Issue 3 4 1 June 2005 21 Section 1 Avaya Application Solutions product guide ...
Page 22: ...22 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 106: ...Call processing 106 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 124: ...Avaya LAN switching products 124 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 139: ...Issue 3 4 1 June 2005 139 Section 2 Deploying IP Telephony ...
Page 140: ...140 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 186: ...Traffic engineering 186 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 204: ...Security 204 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 228: ...Avaya Integrated Management 228 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 274: ...Reliability and Recovery 274 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 275: ...Issue 3 4 1 June 2005 275 Section 3 Getting the IP network ready for telephony ...
Page 276: ...276 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 356: ...Network recovery 356 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 366: ...Network assessment offer 366 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 367: ...Issue 3 4 1 June 2005 367 Appendixes ...
Page 368: ...Appendixes 368 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 394: ...Access list 394 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 414: ...DHCP TFTP 414 Avaya Application Solutions IP Telephony Deployment Guide ...