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- Software-defined_storage abstract "Software-defined storage (SDS) is a term for computer data storage technologies which separate storage hardware from the software that manages the storage infrastructure. The software enabling a software-defined storage environment provides policy management for feature options such as deduplication, replication, thin provisioning, snapshots and backup.By definition, SDS software is separate from hardware it is managing. That hardware may or may not have abstraction, pooling, or automation software embedded. This philosophical span has made it difficult to categorize. If it can be used as software on commodity servers with disks, it suggests software such as a file system. If it is software layered over sophisticated large storage arrays, it suggests software such as storage virtualization or storage resource management, categories of products that are very differently positioned. Based on similar concepts as software-defined networking (SDN),SDS interest rose after Nicira, using the term software-defined networking, was acquired for over a billion dollars in 2012.Several companies used the phrase "software-defined storage" to promote their products or plans. with a variety of intended interpretations of the term.VMware, which made that billion-dollar acquisition, used the term software-defined data center (SDDC) for a broader concept wherein all the virtualized storage, server, networking and security resources required by an application can be defined by software and provisioned automatically.It was then also used by other smaller companies, such as Coraid in May 2013.Characteristics of software-defined storage could include any or all of the following features: Abstraction of logical storage services and capabilities from the underlying physical storage systems, and in some cases pooling across multiple different implementations. Since data movement is relatively expensive and slow compared to compute and services (the "data gravity" problem in infonomics), pooling approaches sometimes suggest leaving it in place and creating a mapping layer to it that spans arrays. Examples include Storage virtualization, the generalized category of approaches and historic products. External-controller based arrays include storage virtualization to manage use and access across the drives within their own pools. Other products exist independently to manage across arrays and/or server DAS storage. Virtual volumes (vVols), a proposal from VMware for a more transparent mapping between large volumes and the VM disk images within them, to allow better performance and data management optimizations. This does not reflect a new capability for virtual infrastructure administrators (for example, it's already possible using NFS) but it does offer arrays using iSCSI or Fibre Channel a path to higher admin leverage for cross-array management apps written to the virtual infrastructure. Parallel NFS (pNFS), a specific implementation which evolved within the NFS community but has expanded to many implementations. OpenStack and its Swift and Cinder APIs for storage interaction, which have been applied to open source projects as well as vendor products. Automation with policy-driven storage provisioning with service-level agreements replacing technology details. This requires management interfaces that span traditional storage array products, as a particular definition of separating "control plane" from "data plane," in the spirit of OpenFlow. Prior industry standards efforts included the Storage Management Initiative – Specification (SMI-S) which began in 2000. Commodity hardware with storage logic abstracted into a software layer. This is also described as a clustered file system for converged storage. Scale-out storage architecture.↑ ↑ ↑ ↑ 4.0 4.1 ↑ ↑ ↑ ↑ ↑ ↑ ↑ ↑ 12.0 12.1".
- Software-defined_storage wikiPageExternalLink software-defined-storage-vs-traditional.html.
- Software-defined_storage wikiPageExternalLink Software-defined_Storage_is_a_Must_Have_for_a_Software-defined_Data_Center_Movement_Driven_by_Need_to_Optimize_Tier_1_Business_Applications.aspx.
- Software-defined_storage wikiPageID "36776993".
- Software-defined_storage wikiPageRevisionID "603359910".
- Software-defined_storage subject Category:Cloud_storage.
- Software-defined_storage subject Category:Information_technology.
- Software-defined_storage comment "Software-defined storage (SDS) is a term for computer data storage technologies which separate storage hardware from the software that manages the storage infrastructure. The software enabling a software-defined storage environment provides policy management for feature options such as deduplication, replication, thin provisioning, snapshots and backup.By definition, SDS software is separate from hardware it is managing.".
- Software-defined_storage label "Software-defined storage".
- Software-defined_storage sameAs m.0ll0_xr.
- Software-defined_storage sameAs Q7554279.
- Software-defined_storage sameAs Q7554279.
- Software-defined_storage wasDerivedFrom Software-defined_storage?oldid=603359910.
- Software-defined_storage isPrimaryTopicOf Software-defined_storage.