A robust podcasting server would be needed by companies hosting several podcasts. However, there are no special server requirements needed to host numerous podcast. As long as the server environments have lots of disk space and can handle wide bandwidth demand, then podcasting by users will not encounter any major problems.
A podcast is a compressed MP3 audio file and can reside on an RSS feed utility. The syndication functionality allows listeners to directly stream the audio file in their computers. Without a feed, the podcast could be downloaded as standalone file and can be opened locally using any type of media players.
The role of podcasting server is to host the files. This means the podcast could be made available when users trigger a demand for it. The throughput capabilities of the server will determine how fast the files can be transferred on local computers. The robustness of the server will also determine the speed of podcast uploads.
When a server breaks down or experienced an outage, uploading and downloading of podcasts would be impossible. A podcasting server downtime could last for a few minutes or several hours depending on the speed of troubleshooting performed by administrators and technicians.
That is why it is important for large podcast hosts to have a backup server. The backup will kick in once the primary server bogs down. In this way, podcasters and those who are downloading the audio files will not experience service interruptions. They may not even notice that the primary podcasting server is experiencing a downtime.