Broadcaster with a High Availability DDP for ingest, playout and editing
This company is a broadcaster with 60 editors plus play out, ingest, transcoding machines and MAM from Aveco and backup/archive computer connected to the HA DDP solutions.
It is easy to understand that with that number and the fear of what happens when the system breaks down they decided to go for a fully redundant solution. Moreover since also their playout machines play out directly from the storage with limited buffering it should also be a failover system with a short as possible failover time and transparent to all connected.
Another important factor is the ability that maintenance such as checks and updates can be done while the DDP is in full operation.
The HA DDP consisted of the Dual HA DDPHead a DS1024, 2U with 16 x 3.68 TB SAS SSDs defined as Cache plus a 16 bay filled with 20TB drives. The Cache size of 51TB usable capacity after raid 5 is sufficient to work from and to the cache while at the same time removing finalized project from the cache and ingesting projects material to the cache.
There are occassions where data from finalized projects need to accessed again. In those cases the material comes from the hard disks.
The system consists of an SSD cache tier and a hard disk tier of 360TB usable after raid 6. Both tiers can be accessed simultaneously.
On top the system runs A/V FS as file system. A/V FS is a high availability scale out file system specially developed for M & E. The user transparent way of tiering and caching is natively build in A/V FS.
