High Availability Overview: Difference between revisions
(re-arrange links) |
m (formatting) |
||
| Line 3: | Line 3: | ||
# First and foremost, to recover from a system failure to minimize the system down time or instability as much as possible. This is achieve with a fault tolerant and redundancy architecture. | # First and foremost, to recover from a system failure to minimize the system down time or instability as much as possible. This is achieve with a fault tolerant and redundancy architecture. | ||
# Secondly, to keep active calls open after a fail-over whenever possible. | # Secondly, to keep active calls open after a fail-over whenever possible. | ||
'''Important''':[[Tmedia]] high availability features are described [[Redundancy_&_High_Availability|here]] | '''Important''':[[Tmedia]] high availability features are described [[Redundancy_&_High_Availability|here]] | ||
== TelcoBridges High Availability == | == TelcoBridges High Availability == | ||
TelcoBridges High Availability should be seen as a collection of high availability and redundancy features instead of one single feature. This means that customer can go as little or as far as they want to create a high availability system. | TelcoBridges High Availability should be seen as a collection of high availability and redundancy features instead of one single feature. This means that customer can go as little or as far as they want to create a high availability system. | ||
== Definitions == | == Definitions == | ||
| Line 37: | Line 40: | ||
*[[High Availability:Hardware:Tdm Interfaces|Tdm Interfaces]] (OC3/STM-1 APS){{Check_X_Mark| y}} | *[[High Availability:Hardware:Tdm Interfaces|Tdm Interfaces]] (OC3/STM-1 APS){{Check_X_Mark| y}} | ||
*[[High Availability:Hardware:Clocking|Clocking]] (Multiple clock sources){{Check_X_Mark| n}} | *[[High Availability:Hardware:Clocking|Clocking]] (Multiple clock sources){{Check_X_Mark| n}} | ||
==== TelcoBridges Hardware HA Product Checklist ==== | ==== TelcoBridges Hardware HA Product Checklist ==== | ||
| Line 77: | Line 81: | ||
|} | |} | ||
=== Software Features === | === Software Features === | ||
| Line 83: | Line 86: | ||
*[[High_Availability:Software:CDR | CDR]]{{Check_X_Mark| y}} | *[[High_Availability:Software:CDR | CDR]]{{Check_X_Mark| y}} | ||
*[[High_Availability:Software:Configuration_Database | Configuration Database]]{{Check_X_Mark| y}} | *[[High_Availability:Software:Configuration_Database | Configuration Database]]{{Check_X_Mark| y}} | ||
*Signaling Stack{{Check_X_Mark| | *Signaling Stack{{Check_X_Mark| y}} | ||
**[[High_Availability:Software:Signaling_Stack:CAS|CAS]] | **[[High_Availability:Software:Signaling_Stack:CAS|CAS]] | ||
**[[High_Availability:Software:Signaling_Stack:ISDN|ISDN]] | **[[High_Availability:Software:Signaling_Stack:ISDN|ISDN]] | ||
Revision as of 10:49, 15 February 2011
This article will describe the TelcoBridges Tdev High Availability feature. The hardware and software are design with the following 2 goals in mind:
- First and foremost, to recover from a system failure to minimize the system down time or instability as much as possible. This is achieve with a fault tolerant and redundancy architecture.
- Secondly, to keep active calls open after a fail-over whenever possible.
Important:Tmedia high availability features are described here
TelcoBridges High Availability
TelcoBridges High Availability should be seen as a collection of high availability and redundancy features instead of one single feature. This means that customer can go as little or as far as they want to create a high availability system.
Definitions
Here is a list of terms used in the description of the high availability features:
- Active Calls
- Active/Standby
- Load Sharing
- Master/Slave
- Primary/Secondary
- Resynchronization
- Switchover
- Switchover Period
- Transient Calls
High Availability Features
Hardware High Availability Features
- Dual Power supply{{#switch: n
| Y | YES
| y
| yes = 
| N
| NO
| n
| no = 
| N/A
}}
- Networking {{#switch: n
| Y | YES
| y
| yes =
| N
| NO
| n
| no =
| N/A
}}
| Y | YES
| y
| yes =
| N
| NO
| n
| no =
| N/A
}}
- Hard Disks{{#switch: n
| Y | YES
| y
| yes =
| N
| NO
| n
| no =
| N/A
}}
- Tdm Interfaces (OC3/STM-1 APS){{#switch: y
| Y | YES
| y
| yes =
| N
| NO
| n
| no =
| N/A
}}
- Clocking (Multiple clock sources){{#switch: n
| Y | YES
| y
| yes =
| N
| NO
| n
| no =
| N/A
}}
TelcoBridges Hardware HA Product Checklist
This checklist provides a quick overview of each Tdev models and their high availability support
| Products | Hardware High Availability Features | |||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dual Power Supply | Control Network Redundancy | Dual Voip Network | Host Redundancy | |||||||||||||||||||||||||||||||||||||
| TMP800 | {{#switch: n | Y | YES | y | yes =
|
N | NO | n | no =
|
N/A
}} |
{{#switch: n | Y | YES | y | yes =
|
N | NO | n | no =
|
N/A
}} |
{{#switch: n | Y | YES | y | yes =
|
N | NO | n | no =
|
N/A
}} |
{{#switch: Y | Y | YES | y | yes =
|
N | NO | n | no =
|
N/A
}} |
| TMP5900 | {{#switch: Y | Y | YES | y | yes =
|
N | NO | n | no =
|
N/A
}} |
{{#switch: Y | Y | YES | y | yes =
|
N | NO | n | no =
|
N/A
}} |
{{#switch: Y | Y | YES | y | yes =
|
N | NO | n | no =
|
N/A
}} |
{{#switch: n | Y | YES | y | yes =
|
N | NO | n | no =
|
N/A
}} |
| TMP6400 | {{#switch: Y | Y | YES | y | yes =
|
N | NO | n | no =
|
N/A
}} (with 2 U) |
{{#switch: Y | Y | YES | y | yes =
|
N | NO | n | no =
|
N/A
}} |
{{#switch: Y | Y | YES | y | yes =
|
N | NO | n | no =
|
N/A
}} |
{{#switch: Y | Y | YES | y | yes =
|
N | NO | n | no =
|
N/A
}} |
| TMP7900 | {{#switch: Y | Y | YES | y | yes =
|
N | NO | n | no =
|
N/A
}} |
{{#switch: Y | Y | YES | y | yes =
|
N | NO | n | no =
|
N/A
}} |
{{#switch: Y | Y | YES | y | yes =
|
N | NO | n | no =
|
N/A
}} |
{{#switch: Y | Y | YES | y | yes =
|
N | NO | n | no =
|
N/A
}} |
Software Features
- CDR{{#switch: y
| Y | YES
| y
| yes =
| N
| NO
| n
| no =
| N/A
}}
- Configuration Database{{#switch: y
| Y | YES
| y
| yes =
| N
| NO
| n
| no =
| N/A
}}
- Signaling Stack{{#switch: y
| Y | YES
| y
| yes =
| N
| NO
| n
| no =
| N/A
}}
| Y | YES
| y
| yes =
| N
| NO
| n
| no =
| N/A
}}
Installation, Maintenance and Provisioning
This section will show how to install, upgrade and configure a high availability system.
First, we will look at the software installation and provisioning (Host redundancy).