Network Attached Storage (NAS) and iSCSI storage solutions are designed for environments ranging from small offices, departmental workgroups and large enterprises to supply all file management needs across the local area network. FlexStor NAS+iSCSI storage appliances featuring Windows Storage Server 2012 offer a huge variety of configurations with integrated, modular or cluster solutions, choice of SATA, SAS, and SSD drives along with all flavors of 1Gb and 10Gb network connectivity. FlexStor
DNF's diverse direct attached storage options offer expandable storage, whether adding raw external storage or an intelligent redundant array to client or server machines. Using SATA or high-speed SAS disk drives, DNF has an option for every application. With high performance SAS-attached or Fibre Channel-attached RAID arrays and scalable JBOD subsystems, direct attached storage options are a straightforward way to expand. SAS-Attached Storage FC-Attached Storage
Input an estimate of the amount of storage you will need. Your available storage capacity will decrease depending on the RAID level you choose. Do not include hot spares in your raw storage calculation.
Input the amount of data you currently have in use. This will be used to generate an estimate on the number of disks you will need for this amount of available storage, after accounting for the RAID level.