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Avaya S8500 Series Job Aid

Manual backup servers for s8500 or s8700 series media servers—r2.0 or later
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Download this manual See also: User Manual, Manual
Job Aid:
Manual Backup Servers for S8500 or S8700 Series
Media Servers—R2.0 or later
A Manual Backup Server(s) (MBS) backs up an existing S8500 Media Server or a S8700 series
media server pair. The MBS resolves two failure situations:
When the primary media server(s) fails, meaning Avaya Communication Manager is
unable to control call processing
When the network becomes fragmented, meaning the primary media server(s) cannot
communicate with remote locations
The MBS does not address other failure situations.
The media server(s) running Avaya Communication Manager the majority of the time is called
the primary media server(s). The active media server(s) is defined as the one(s) running Avaya
Communication Manager at any given time.
The primary media server(s) and MBS must be the same media server type. That is, the S8500
Media Server must be backed up with an S8500 Media Server, the S8700 Media Servers must
be backed up with S8700 Media Servers, and the S8710 Media Servers must be backed up
with S8710 Media Servers. Only one MBS per primary media server(s) is permitted.
An MBS is available beginning with Release 2.0 of Avaya Communication Manager.
Note:
MBS may require a software update. Contact your Remote Technical Services
Note:
(RTS) team to obtain the required update.
What is an MBS?
An MBS adds a survivability option to those that already exist for Avaya's media servers. An
MBS is a media server (S8500) or pair of media servers (S8700 series) with identical license
files and translations in a non-call-processing state. The MBS becomes available through the
customer's manual intervention to control port networks (PNs) when a major outage takes
place, such as when the primary server(s) malfunction directly or when the channel connectivity
over the LAN, WAN, or MAN, and possibly port network connectivity is severed.
03-300154 Issue 3 January 2005
1

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Summary of Contents for Avaya S8500 Series

  • Page 1 (RTS) team to obtain the required update. What is an MBS? An MBS adds a survivability option to those that already exist for Avaya’s media servers. An MBS is a media server (S8500) or pair of media servers (S8700 series) with identical license files and translations in a non-call-processing state.
  • Page 2 Job Aid: Manual Backup Servers for S8500 or S8700 Series Media Servers—R2.0 or later The MBS supports S8500 or S8700 series IP Connect configuration S8700 series Multi-Connect configuration using: - Center Stage Switch (CSS) - Asynchronous Transfer Mode (ATM) MBS does not support the Direct Connect configuration on an S8500 or S8700 series Media Server.
  • Page 3 MBS must cease. This environment must be reestablished after any server configuration changes or software upgrades that affect the MBS. All changes described above must be made by Avaya Services as part of the implementation process due to root access requirements.
  • Page 4 Only one media server (S8500) or server pair (S8700 series) can be connected to the control network and the customer’s LAN at the same time while Avaya Communication Manager is running. 4 Manual Backup Servers for S8500 or S8700 Series Media Servers R2.0 or later...
  • Page 5 A script must be added to both the primary media server(s) and the MBS to implement MBS. Avaya Services must configure MBS-related scripts on the primary media server(s) and the MBS because the configuration process requires root access. After the configuration is complete, the following statements are true: The primary media server(s) is intended to be the active media server(s) most of the time.
  • Page 6 Job Aid: Manual Backup Servers for S8500 or S8700 Series Media Servers—R2.0 or later 4. Have Avaya Services set up the scripts and schedules on the primary media server(s) and MBS. CAUTION: Perform the following steps after Avaya Services has completed the configuration CAUTION: on both the primary media server(s) and MBS.
  • Page 7 Using the MBS A second log file is generated on the active primary media server(s) in the /var/home/defty/ called lastbackup.log. This log file indicates when the last successful backup occurred and, if an S8700 series pair, to which media server on the MBS. The script running on the MBS generates a log file in the /var/home/defty directory called coldstandby.log that reports: The Verbose output of the restore command issued by the script...
  • Page 8 3. Reconnect the MBS to the customer’s network and test for connectivity. 4. Connect the primary media server(s) to the customer’s network and test for connectivity. 5. Avaya Communication Manager on the primary media server(s) automatically connects and takes over all the IPSI- and non-IPSI-connected port networks. This causes a service outage as the primary media server(s) gains control.
  • Page 9 Using the MBS If the network becomes fragmented Network fragmentation means both the primary media server(s) and MBS may be made active when WAN connectivity to the far-end port networks is severed. Note: When the MBS is activated, it cannot control a PN that the primary media Note: server(s) may be controlling.
  • Page 10 Job Aid: Manual Backup Servers for S8500 or S8700 Series Media Servers—R2.0 or later On the MBS (active server if S8700 series): 1. Busy out the CSS port network connectivity (PNC) fiber connections to the remote port networks. If a duplicated bearer network, busy out both the active and standby expansion interface (EI) circuit packs and the switch node interface (SNI) circuit packs.

  • Page 11: Other Configurations

    Some of these configurations are legitimate and work fine, but the previous example is what Avaya supports. Be aware that other configurations can result in unwanted service interruptions because two active media servers are trying to control the same IPSI group.

  • Page 12: Customer Responsibilities

    Keep software updates the same for the MBS as the primary media server(s). Maintain current software upgrades for the server complex. Verify that the MBS is alarming to Avaya. Avaya Services will accept alarms from the MBS if Communication Manager is running and the MBS is connected to a modem. If these conditions are not met, the customer cannot expect Avaya to be aware of any issues around the MBS.

This manual is also suitable for:

S8700 series