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NetApp FAS3240-R5. Modern NetApp FAS, AFF or ASA system consist of customized computers with Intel processors using PCI.Each FAS, AFF or ASA system has non-volatile random access memory, called NVRAM, in the form of a proprietary PCI NVRAM adapter or NVDIMM-based memory, to log all writes for performance and to play the data log forward in the event of an unplanned shutdown.
ONTAP, Data ONTAP, Clustered Data ONTAP (cDOT), or Data ONTAP 7-Mode is NetApp's proprietary operating system used in storage disk arrays such as NetApp FAS and AFF, ONTAP Select, and Cloud Volumes ONTAP. With the release of version 9.0, NetApp decided to simplify the Data ONTAP name and removed the word "Data" from it, removed the 7-Mode image ...
In May 2018, NetApp announced its first end-to-end NVMe array called All Flash FAS A800 with the release of ONTAP 9.4 software. [13] NetApp claims over 1.3 million IOPS at 500 microseconds per high-availability pair. [14] In January 2019, Dave Hitz announced his retirement from NetApp.
Invented by NetApp, it is offered as RAID-DP in their ONTAP systems. [3] The technique can be considered RAID 6 in the broad SNIA definition [4] and has the same failure characteristics as RAID 6. The performance penalty of RAID-DP is typically under 2% when compared to a similar RAID 4 configuration. [5]
NetApp's Data ONTAP Release 7G operating system supports a read-write snapshot called FlexClone. Snapshots are basis for technologies like SnapMirror , SnapVault and Online Volume Move while features like FlexClone , SnapLock , SnapRestore are snapshot-like technologies leverage on WAFL capabilities and properties like manipulations with inodes.
Diagram of a RAID 1 setup. RAID 1 consists of an exact copy (or mirror) of a set of data on two or more disks; a classic RAID 1 mirrored pair contains two disks.This configuration offers no parity, striping, or spanning of disk space across multiple disks, since the data is mirrored on all disks belonging to the array, and the array can only be as big as the smallest member disk.
ZFS (previously Zettabyte File System) is a file system with volume management capabilities. It began as part of the Sun Microsystems Solaris operating system in 2001. Large parts of Solaris, including ZFS, were published under an open source license as OpenSolaris for around 5 years from 2005 before being placed under a closed source license when Oracle Corporation acquired Sun in 2009–2010.
WAFL in NetApp's ONTAP 7.2 operating system has a command called reallocate that is designed to defragment large files. XFS provides an online defragmentation utility called xfs_fsr . SFS processes the defragmentation feature in almost completely stateless way (apart from the location it is working on), so defragmentation can be stopped and ...