Using a SAS hard drive in a personal computer will not offer real world benefit. SATA hard drives are for the consumer market. The hardware architecture of a SAS hard drive is optimized for multiple users that are sending and retrieving large amounts of data at once. However, they have very different hardware and technical configurations.Įssentially, SAS hard drives are targeted toward the enterprise or server markets. Remember that the similarities between the two center on the fact that they are both types of mechanical data storage devices that use serial signaling technology. The aforementioned differences between a SATA hard drive and a SAS hard drive all boil down to utility and practicality. SAS hard drives have an MTBF of 1.2 million to 1.6 million of hours of use at 45 degrees Celsius. Note that the mean time between failures or MTBF for SATA hard drives is 700K hours to 1.2 million hours of use at 25 degrees Celsius. SATA hard drives can technically operate under a 24/7 condition but it is more prone to failures. However, SAS hard drives are engineered for round-the-clock wide scale use. On the other hand, SATA hard drives have a cable limit of 1 meter or 3 feet while eSATA has a cable limit limit of 2 meter or 6.6 feet.īoth SATA hard drives and SAS hard drives are considerably reliable and durable under normal use. This means that another advantage of SAS hard drives is that they can use longer cables of up to 10 meters or 33 feet in length. Remember that SAS uses a higher signaling voltage compared to SATA. Meanwhile, SATA uses a signaling voltage of 400 to 600 mV for transmitting and 325 to 66 mV for receiving. This higher signaling voltage allows SAS to support server backplanes. SAS has a higher signaling voltage of 800 to 1600 mV for transmitting and 275 to 1600 mV for receiving. They are for mission-critical applications such as large databases, e-mail servers, and back-office.Another difference between a SATA hard drive and a SAS hard drive is power consumption. They are the only HP drives designed for use at unconstrained I/O workloads. Both technologies do roughly the same thing, but each is built with different hardware. HP Enterprise (SAS 10k/15k) drives give you maximum reliability, highest performance, scalability, and error management under the most demanding conditions. Posted: NovemCategories: Laptops, Desktops Author: HP Online Store SAS and SATA are two technologies that computers use to transfer data from the motherboard to storage, and vice versa. We do not recommend Entry or Midline drives for mission-critical applications. Like Entry drives, however, Midline drives are for use in moderate workload environments. HP Midline drives are for high-capacity applications such as external storage that may require increased reliability. Midline drives are more resistant to rotational and operational vibration, so they are better suited for use in multi-drive configurations. HP Midline (SAS 7.2k) drives give you larger capacity and greater reliability than Entry drives. They are typically best suited for internal/archival storage or as boot drives for entry-level servers. They are best suited for non-mission-critical environments where I/O workloads are 40 percent or less. HP Entry (SATA 7.2k) drives have the lowest unit cost and give you a basic level of reliability and performance. The former are better for sequential transfer and high capacity requirements. The latter are meant for high transactional and high random I/O workloads. 10000rpm and 15000rpm disks are smaller and faster. In short, they have different characteristics and purposes.ħ200rpm disks are bigger and slower.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |