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===Enterprise and business segment=== ; Server and workstation HDDs : [[File:IBM TotalStorage Exp400.jpg|thumb|[[hot-swapping|Hot-swappable]] HDD enclosure]] : Typically used with multiple-user computers running [[enterprise software]]. Examples are: transaction processing databases, internet infrastructure (email, webserver, e-commerce), scientific computing software, and nearline storage management software. Enterprise drives commonly operate continuously ("24/7") in demanding environments while delivering the highest possible performance without sacrificing reliability. Maximum capacity is not the primary goal, and as a result the drives are often offered in capacities that are relatively low in relation to their cost.<ref name="AutoMK-99" /> : The fastest enterprise HDDs spin at 10,000 or 15,000 rpm, and can achieve sequential media transfer speeds above {{nowrap|1.6 Gbit/s}}<ref name="erwpnw" /> and a sustained transfer rate up to {{nowrap|1 Gbit/s}}.<ref name="erwpnw" /> Drives running at 10,000 or 15,000 rpm use smaller platters to mitigate increased power requirements (as they have less [[air drag]]) and therefore generally have lower capacity than the highest capacity desktop drives. Enterprise HDDs are commonly connected through [[Serial Attached SCSI]] (SAS) or [[Fibre Channel]] (FC). Some support multiple ports, so they can be connected to a redundant [[host bus adapter]]. : Enterprise HDDs can have sector sizes larger than 512 bytes (often 520, 524, 528 or 536 bytes). The additional per-sector space can be used by hardware RAID controllers or applications for storing [[Data Integrity Field]] (DIF) or Data Integrity Extensions (DIX) data, resulting in higher reliability and prevention of [[silent data corruption]].<ref>{{cite web | url = https://oss.oracle.com/~mkp/docs/lpc08-data-integrity.pdf | archive-url = https://web.archive.org/web/20150109235547/https://oss.oracle.com/~mkp/docs/lpc08-data-integrity.pdf | title = Linux Data Integrity | date = August 30, 2008 | access-date = January 23, 2015 | archive-date = January 9, 2015 | first = Martin K. | last = Petersen | publisher = [[Oracle Corporation]] | quote = Most disk drives use 512-byte sectors. [...] Enterprise drives (Parallel SCSI/SAS/FC) support 520/528 byte 'fat' sectors. }}</ref> ;[[#VideoHDD|Surveillance hard drives]]; : Video recording HDDs used in network video recorders.<ref name="VHD"/>
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