Reliability
Issue 3.4.1 June 2005
233
Table 45
compares average failure rates of various Avaya components with industry averages
for similar components, demonstrating Avaya’s commitment to reliability.
The data in
Table 45
shows that in several cases Avaya’s subassemblies are so reliable that it
would take twice the number of industry-typical subassemblies to reach the same availability
level.
Table 45: Comparison of circuit packs and subassemblies failure rates
1
1. All numbers assume 24 hours per day, 7 days per week usage.
Industry data
Avaya system elements
Component
Mean time
to failure
Component
Mean
time
to failure
Logic boards
2
2. Taken from Microsoft High Available Operations Guide.
3-20 years
Media processor circuit
pack
3
3. Based on numerous internal Avaya studies of millions of user-hours.
50 years
Disks
2
1-50 years
Protocol preprocessor
circuit pack (C-LAN)
50 years
ISP server class power
supply
4
4. Based on an internal survey of reputable vendors.
20-25 years
Digital line/trunk circuit
packs
72-77
years
Power (North America)
2
5.2 months
S8700 Server complex:
“duplex”/”high & critical”
9 / 90+
years
LAN
2
3 weeks
Power supplies
45 to 60
years
IP Server Interface (IPSI)
circuit pack
50 years
Expansion Interface (EI)
circuit pack
20 years
(Industry) Power (North
America)
5.2
months
(Industry) LAN
3 weeks
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 ...