| Ultrastar HC590<\/a><\/td> | 26 TB<\/td> | SATA<\/td> | maximum capacity, 11-platter CMR design<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n Most models in the table are also available with a SAS interface within the same product line\u2014the exception is HA340, which is available only in a SATA version.<\/p>\n\n\n\n <\/span>Which Ultrastar for which application?<\/strong><\/span><\/h2>\n\n\n\nFile server and backup for a smaller business<\/strong><\/h3>\n\n\n\nIf you need several or a dozen terabytes in a server with a few drive bays, models HC320 or HA340 are a good fit. They cost less per drive, and at this scale, capacity per individual drive is not a bottleneck.<\/p>\n\n\n\n RAID array and mid-sized storage<\/strong><\/h3>\n\n\n\nHC330 and HC555 are good choices here, offering a solid capacity-to-price ratio with full availability. With larger drives, remember that array rebuilds take longer, so for capacities above 20 TB, it is worth considering RAID 6 rather than RAID 5.<\/p>\n\n\n\n Data centre and maximum density<\/strong><\/h3>\n\n\n\nWhen data grows faster than the budget for rack space, capacity per bay delivers the greatest benefit. HC570, HC580 and HC590 let you fit more terabytes into the same enclosure, while higher recording density also usually means lower power consumption per TB.<\/p>\n\n\n\n <\/span>SATA or SAS?<\/strong><\/span><\/h2>\n\n\n\nSATA is suitable for most servers and NAS systems, and it usually costs less. Choose SAS when:<\/p>\n\n\n\n |