Reliability and Recovery
246 Avaya Application Solutions IP Telephony Deployment Guide
The maintenance subsystem manages three categories of maintenance objects:
●
Hardware maintenance objects are tested, and where appropriate alarmed and
removed from service by the software. The error is reported to an operations center so
that the object can be replaced.
●
If a software process encounters trouble, it is recovered or restarted.
●
Data relationships are audited and corrected.
Figure 72: Maintenance management architecture
All systems are provided with remote diagnostics capability, which enables rapid
troubleshooting and maintenance, in the cases where the system cannot repair itself. Studies
have shown that most problems experienced by Avaya systems are self-corrected without
impact to the customer. Even with the highly reliable hardware components discussed
previously, this sophisticated maintenance management implementation is required to attain the
99.99 – 99.999+% availability of Avaya systems.
Software failure recovery levels
One key to rapid self-recovery of software failures is the judicious use of the appropriate level of
recovery. With too little action, the attempted recovery becomes time wasting and ineffective,
when stronger action should be taken. Conversely, with too much action, the recovery is
unnecessarily prolonged.
Figure 73: Avaya Communication Manager’s recovery levels
on
page 247 shows the 5 recovery levels of Communication Manager.
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 ...