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===E-Series=== [[File:NetApp E5700.jpg|thumb|E5700 with 60 disk drives enclosure]] [[File:DDP vs RAID6.png|thumb|RAID comparison with DDP]] [[File:DDP D-Stripe and D-Piece.png|thumb|DDP components and data reconstruction process]] Previously known as LSI Engenio '''RDAC''' after NetApp acquisition the product renamed to NetApp E-Series. It is a general-purpose enterprise storage system with two controllers for SAN protocols such as [[Fibre Channel]], [[iSCSI]], [[Serial Attached SCSI|SAS]] and [[InfiniBand]] (includes SRP, iSER, and NVMe over Fabrics protocol). NetApp E-Series platform uses proprietary OS SANtricity and proprietary [[RAID]] called Dynamic Disk Pool (DDP) alongside traditional RAIDs like RAID 10, RAID 6, RAID 5, etc. In DDP pool each D-Stripe works similar to traditional [[RAID#RAID-F|RAID-4]] and [[RAID#RAID-F|RAID-6]] but on block level instead of entire disk level, therefore, have no dedicated parity drives. DDP compare to traditional RAID groups restores data from lost disk drive to multiple drives which provide a few times faster reconstruction time<ref>{{cite web |format = url |publisher = NetApp |author=Todd Edwards |access-date = February 9, 2018 |date = December 1, 2017 |url = https://www.netapp.com/us/media/tr-4652.pdf |title = TR-4652 SANtricity OS 11.40.1 Dynamic Disk Pools β Feature Description and Best Practices }}{{in lang|en}}</ref> while traditional RAIDs restores lost disk drive to a dedicated parity drive. Starting with SANtricity 11.50 E-Series systems EF570 and E5700 support [[NVMe]] over Ethernet ([[RDMA over Converged Ethernet|RoCEv2]]) with 100 Gbit/s Ethernet ports and NVMe over InfiniBand. Starting with EF600 systems are end-to-end NVMe and capable of NVMe/FC in addition to NVMe/RoCE and NVMe/InfiniBand. Sync and async mirroring are supported with SANtricity 11.50. SANtricity Unified Manager is a web-based manager that supports up to 500 EF/E-Series arrays and supports LDAP, RBAC, CA and SSL for authorization and authentication. In August 2019 NetApp announced E600 with support for NVMe/IB, NVMe/RoCE, NVMe/FC protocols, up to 44 GBps of bandwidth and full-function embedded REST API.
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