Hardware delivery / disk arrays
disk arrays
If data are to be centrally stored on disks, some disk array must be deployed. Disk arrays may be categorized depending on:
disk type
• SATA
• SAS
• SCSI
• FC
access method
• FC
• SCSI
• iSCSI
• NAS
capacity
• low-end arrays (most often a single bay with up to several disks)
• midrange arrays (modular arrays of up to a few hundred disks)
• enterprise arrays (monolithic arrays of a capacity from several TB up into the Peta Byte range).
Besides hardware itself, an extremely important system component is software, which may be categorized as follows:
• disk system monitoring & management software
• local volume backup software
• snapshot backup software
• remote synchronous/asynchronous replication software
• data access fail-over software.
The hardware/software product range
• modular disk arrays (SATA, SAS, SCSI, iSCSI, FC, NAS)
• monolithic disk arrays
• SAN (Storage Area Network) networks
• disk array software
Key manufacturers
SUN, StorageTek
Hitachi Data Systems
EMC
IBM
HP
NetApp
See also:
[central disk array systems]