Dell ECSDell ECS is a complete software-defined cloud storage platform that supports the storage, manipulation, and analysis of video security and unstructured data on a massive scale on commodity hardware. ECS is specifically designed to support the mobile, cloud, and Big Data workloads that are similar to large-scale safety and security workloads. Retention periods and policiesECS provides the ability to prevent data from being modified or deleted within a specified retention period. Bucket based retention is not supported and is not to be used with Milestone XProtect Corporate when using the GeoDrive service. XProtect managed time based retention is the only supported retention policy when using GeoDrive. Cluster CapacityDell only supports the use of time based retention settings with Milestone XProtect Corporate. To determine the capacity requirement for each recorder, calculate the number of cameras per recorder, the target bit rate per camera, and the retention time in days. Always consult with Milestone to determine an accurate capacity estimate. QuotasWhen using GeoDrive, Dell storage requires the use of ECS soft quotas. Quotas are the storage space limit that is specified for the ECS buckets. You can specify a storage limit for the bucket and define notification and access behavior when the quota is reached. The quota setting for a bucket cannot be less than 1 GB and can be specified in increments of 1 GB. Garbage collection and space reclamationGarbage collection (GC) in ECS is designed such that it runs with lower priority than I/O activity. When an object is deleted, ECS waits for garbage collection to reclaim the space allocated to that object. However, the object is marked as deleted and the deletion is reflected in the user's view of system utilization through metering and chargeback reports. Dell GeoDriveThe Dell GeoDrive tool provides a local file system interface through which you can store and retrieve files on Dell ECS Object Storage. Use GeoDrive to store and retrieve files, such as pictures, movies and documents, in the cloud using the same applications and tools that you use today. ECS tuning for safety and security implementations