Editing Disk arrays

A [[wikipedia:disk array]] is a disk [[storage system]] which contains multiple disk drives ([[Hard disk drive|HDD]] or [[SDD]]). It is differentiated from a disk enclosure by providing additional functionalities and capabilities such as fault tolerant designs, cache memory, different [[RAID]] levels, [[deduplication]], [[cryptography|encryption]] and even [[virtualization]].

Primary vendors of storage systems include Dell EMC, Fujitsu, Hewlett Packard Enterprise, Hitachi Data Systems, Huawei, IBM, NetApp and Oracle Corporation.

Some disk arrays such as [[NetApp]] allows to group disks creating pools of HDD, SDD or mixed.

== Activities ==
# Identify available vendors offering disk array solutions and their OS such as Netapp [[ONTAP]]
# Identify main advantages of using a disk array solution vs using computer internal disks or a internal [[array controller]]
# Identify main characteristics of disk arrays fault tolerant designs 
# Identity hot plugging capabilities of disk arrays
# Understand different connectivity technologies such as [[Fibre Channel]], [[NFS]] or [[iSCSI]] availables on disk arrays products.

== See also ==
* [[ONTAP]] [[NetApp]]’s proprietary operating system used in storage disk arrays
* [[Hard disk drive|HDD]] and [[SDD]]
* [[RAM]]
* [[IOPs]] and [[block size]]
* [[Fibre Channel]] and [[Storage Area Networks]] (SAN)
* [[System administration/ProLiant/HPE ProLiant Smart Array Controllers| HPE ProLiant Smart Array Controllers]]
* [[Computer Support/Hardware/Storage| CompTIA A+ certification: Computer Support/Hardware/Storage]]
* [[File Systems|Filesystems]]: [[Linux Administration/Devices and Filesystems/ZFS|ZFS]]
* [[Backup]]

[[Category:Storage]]