t not only helps in optimizing resource utilization but also provides application specific storage. The resource allocation is done in that way SO that it will meet the service level agreement. EXISTING SDS SOLUTION After realizing the benefits of SDS many storage industry leaders came up with storage solutions based on SDS technology fully or partially. ViPR (DellEMC, (2017)), developed by emc2 and IBM storewize (IBM Storwize V7000 and Storwize V7000 Unified Disk Systems) are the solution based on SDS. Downloaded: 4/15/2022 9:44:49 AM Nova Southeastern University IP Address: 137.52.76.29 Software-Defined Storage ViPR is basically an SDS controller developed by EMC. It is based on Storage as a Service (SaaS) model which reduces the complexity generated due to traditional storage system. It automates the storage provisioning reducing manual efforts and increasing efficiency. Viper is a commercial version of Open source project CorpHD (DellEMC, (2017)). It centralizes and transforms storage into a simple and extensible platform by abstracting and pooling resources to deliver automated, policy-driven storage services on-demand via a self-service catalogue (DellEMC, (2017)). Viper converts the storage array into in virtualized pool of storage array. The storage performance is limited due to heterogeneity of storage devices. Virtualized plays an important role address this problem. Viper addresses these shortcomings and offers the similar kind of capabilities of virtualization by conceptualizing the storage services for the data path and embedding it in the storage control path. Viper provides support to object, block and file storage types. Viper is open and extensible solution such that, administrator has the ability of management and control over the whole storage devices using a centralized control i.e. a controller for storage networks (DellEMC, (2017)). Figure 9. Viper architecture Automated Storage Management Global Data Services Self- Metering Object Tenants Other service Store Portal Provisioning Control Path