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Some researchers have made a functional and experimental analysis of several distributed file systems including HDFS, Ceph, Gluster, Lustre and old (1.6.x) version of MooseFS, although this document is from 2013 and a lot of information are outdated (e.g. MooseFS had no HA for Metadata Server at that time).
Manufacturer Product Family Start capacity (TB) [1] Max Capacity (TB) [1] Block Protocols File protocols 3PAR: InServ 2.3 960 FC, iSCSI: Adaptec: Snap Server 0.2 44
A cloud storage gateway is a hybrid cloud storage device, implemented in hardware or software, which resides at the customer premises and translates cloud storage APIs such as SOAP or REST to block-based storage protocols such as iSCSI or Fibre Channel or file-based interfaces such as NFS or SMB.
Internet Small Computer Systems Interface or iSCSI (/ aɪ ˈ s k ʌ z i / ⓘ eye-SKUZ-ee) is an Internet Protocol-based storage networking standard for linking data storage facilities. iSCSI provides block-level access to storage devices by carrying SCSI commands over a TCP/IP network. iSCSI facilitates data transfers over intranets and to manage storage over long distances.
ONTAP originally only supported NFS, but later added support for SMB, iSCSI, and Fibre Channel Protocol (including Fibre Channel over Ethernet and FC-NVMe). On June 16, 2006, [3] NetApp released two variants of Data ONTAP, namely Data ONTAP 7G and, with nearly a complete rewrite, [2] Data ONTAP GX. Data ONTAP GX was based on grid technology ...
Storage systems can provide either block accessed storage, or file accessed storage. Block access is typically delivered over Fibre Channel, iSCSI, SAS, FICON or other protocols. File access is often provided using NFS or SMB protocols. Within the context of a storage system, there are two primary types of virtualization that can occur:
Server is only running arbitrary storage protocol like SFTP, SMB, NFS, etc. All synchronization logic is handled by client. This is generally good, because cheap cloud storage usually does not allow users to run custom software on storage server, they only provide access to storage.
Network File System (NFS) is a distributed file system protocol originally developed by Sun Microsystems (Sun) in 1984, [1] allowing a user on a client computer to access files over a computer network much like local storage is accessed.