Configuring Delivery Nodes - Avaya Equinox Manual

Installing the new streaming and recording server
6. Click Unregister.

Configuring delivery nodes

Delivery nodes (DN) store all content that is created by the conference point and deliver the content
to client systems at playback time. You must associate the conference point with the delivery nodes.
A source DN is the original DN that receives a recording file from its associated conference point. A
source DN sends the recording file to all of the other DNs in the network.
Equinox Streaming and Recording supports deployments containing a mix of different servers with
varying amounts of storage capacities. You can have DNs with large amounts of free space and
DNs with limited space. To maximize available storage, you can configure DNs which delete old
recordings when the disk is almost full and you can configure DNs which permanently store all
recordings.
• An edge DN is a DN on which content is stored wherever possible but this content can expire.
Older content makes way for newer content.
• A master DN is a delivery node which permanently holds all content. Typically, you assign
master status to the DN with the largest storage capacity. If your deployment only contains a
single DN, that DN is automatically added as the master DN.
For playback, you can configure rules to determine which DN is selected when a user wants to
access a recording. For example, you might want to use the DN closest to the user location, or you
might want to direct the user to the original source DN. The DN closest to the user location or the
original source DN may be edge DNs. Typically, if you have a master DN, that DN becomes the
source DN for all recordings. If you want to expand your storage capabilities with an external
storage device, it is a good idea to make the DN which is connected to the external storage device
the master DN.
Edge DNs are programmed with rules which determine how recordings are selected for deletion.
When the disk capacity reaches 90%, content is removed until the capacity reaches 70%. Only
recordings which have been copied to other DNs can be deleted. Recordings are scheduled for
deletion as follows:
• Recordings created over a week ago and never accessed.
• Recordings created over a week ago with the greatest amount of elapsed time since the last
access attempt.
• Recordings created less than a week ago and never accessed, oldest creation time first.
• Recordings created less than a week ago with the greatest amount of elapsed time since the
last access attempt.
Equinox Streaming and Recording stops creating new recordings and triggers an alert when
capacity on the master DN reaches 90%. Equinox Streaming and Recording stops any recordings in
progress and triggers an alert when capacity on the master DN reaches 95%. If the capacity on an
edge DN reaches 90%, Equinox Streaming and Recording stops creating new recordings on that
August 2017 Installing the Avaya Equinox Streaming and Recording Server
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