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Harddrive Performance
When I look up the specs on a ATA150 and a SATA 150 the data transfer rate
is listed the same. What is the advantage of SATA? |
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jime schrieb:
When I look up the specs on a ATA150 and a SATA 150 the data transfer rate is listed the same. What is the advantage of SATA? You can indeed buy the same drives as either PATA and SATA versions, and performance differences will be very small. What SATA would bring you is the longer and thinner cables, OTOH 1st generation SATA connectors can be very loose and cause problems that way (so-called c.r.a.p), which should be fixed in 2nd-gen connectors (no idea whether these are actually already in use). One compelling reason to upgrade to SATA certainly are the WD Raptors, which are only available with SATA interface. Stephan -- Home: http://stephan.win31.de/ PC#6: i440BX, 2xP3-500E, 704 MiB, 18+80 GB, R9k AGP 64 MiB, 110W |
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"Stephan Grossklass" wrote in message
... jime schrieb: When I look up the specs on a ATA150 and a SATA 150 the data transfer rate is listed the same. What is the advantage of SATA? You can indeed buy the same drives as either PATA and SATA versions, and performance differences will be very small. What SATA would bring you is the longer and thinner cables, OTOH 1st generation SATA connectors can be very loose and cause problems that way (so-called c.r.a.p), which should be fixed in 2nd-gen connectors (no idea whether these are actually already in use). One compelling reason to upgrade to SATA certainly are the WD Raptors, which are only available with SATA interface. Stephan Some of the newer SATA drives already on the market also have Command Queuing, which is similar to a feature on high-end SCSI drives. Besides the WD Raptor, some Maxtor and Seagate drives have it. This allows multiple I/O requests to queue up and be processed asynchronously. SATA II, which provides up to 300 mbps is just around the corner, but will not provide much transfer speed advantage for 7200 rpm drives under typical use. Some motherboards already support SATA II (including my A8N-E). The longer and thinner SATA cables are important as system builders try to keep ever more powerful computers cool and quiet. They have less restrictive airflow through case compared to flat ribbon cables. |
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"(PeteCresswell)" wrote in message
... Per Mark A: Some of the newer SATA drives already on the market also have Command Queuing, which is similar to a feature on high-end SCSI drives. Besides the WD Raptor, some Maxtor and Seagate drives have it. Any idea if Seagate's ST3 120 827AS has it? -- PeteCresswell Manufacturer websites will tell you which ones have it. But keep in mind that command queuing primarily helps server type applications where you get multiple simultaneous I/O requests to the same disk from different applications running at the same time. |
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Per Mark A:
Some of the newer SATA drives already on the market also have Command Queuing, which is similar to a feature on high-end SCSI drives. Besides the WD Raptor, some Maxtor and Seagate drives have it. Any idea if Seagate's ST3 120 827AS has it? -- PeteCresswell |
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