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Seagate’s new Mach.2 is the world’s fastest conventional hard drive
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<blockquote data-quote="OneMoreThing..." data-source="post: 1883699" data-attributes="member: 196927"><p><img src="https://cdn.arstechnica.net/wp-content/uploads/2021/05/mach.2-actuator-472x471.png" alt="The key to Mach.2's increased performance is a second set of actuator arms, which can be positioned independently from the first set. Essentially, this makes a Mach.2 two drives in one chassis.'s increased performance is a second set of actuator arms, which can be positioned independently from the first set. Essentially, this makes a Mach.2 two drives in one chassis." class="fr-fic fr-dii fr-draggable " style="" /></p><p>The key to Mach.2's increased performance is a second set of actuator arms, which can be positioned independently from the first set. Essentially, this makes a Mach.2 "two drives in one chassis." (credit: <a href="https://www.seagate.com/innovation/multi-actuator-hard-drives/" target="_blank">Seagate</a>)</p><p></p><p>Seagate has been working on dual-actuator hard drives—drives with two arms and read/write heads per platter—for several years. Its first production dual-actuator drive, the Mach.2, is now "available to select customers," meaning that enterprises can buy it directly from Seagate, but end-users are out of luck for now.</p><p></p><p>Seagate lists the sustained, sequential transfer rate of the Mach.2 as up to 524MBps—easily double that of a fast "normal" rust disk and edging into SATA SSD territory. The performance gains extend into random I/O territory as well, with 304 IOPS read / 384 IOPS write and only 4.16 ms average latency. (Normal hard drives tend to be 100/150 IOPS and about the same average latency.)</p><p></p><p>The added performance requires additional power; Mach.2 drives are rated for 7.2 W idle, while Seagate's standard Ironwolf line is rated at 5 W idle. It gets more difficult to compare loaded power consumption because Seagate specs the Mach.2 differently than the Ironwolf. The Mach.2's power consumption is explicitly <a href="https://www.seagate.com/innovation/multi-actuator-hard-drives/" target="_blank">rated</a> for several random I/O scenarios, while the Ironwolf line is rated for an unhelpful "average operating power," which isn't defined in the <a href="https://www.seagate.com/www-content/datasheets/pdfs/ironwolf-12tbDS1904-9-1707US-en_US.pdf" target="_blank">data sheet</a>.</p><p></p><p><a href="https://arstechnica.com/?p=1766760#p3" target="_blank">Read 2 remaining paragraphs</a> | <a href="https://arstechnica.com/?p=1766760&comments=1" target="_blank">Comments</a></p><p></p><p><a href="https://arstechnica.com/?p=1766760" target="_blank">Click here to view the article...</a></p></blockquote><p></p>
[QUOTE="OneMoreThing..., post: 1883699, member: 196927"] [IMG alt="The key to Mach.2's increased performance is a second set of actuator arms, which can be positioned independently from the first set. Essentially, this makes a Mach.2 two drives in one chassis.'s increased performance is a second set of actuator arms, which can be positioned independently from the first set. Essentially, this makes a Mach.2 two drives in one chassis."]https://cdn.arstechnica.net/wp-content/uploads/2021/05/mach.2-actuator-472x471.png[/IMG] The key to Mach.2's increased performance is a second set of actuator arms, which can be positioned independently from the first set. Essentially, this makes a Mach.2 "two drives in one chassis." (credit: [URL='https://www.seagate.com/innovation/multi-actuator-hard-drives/']Seagate[/URL]) Seagate has been working on dual-actuator hard drives—drives with two arms and read/write heads per platter—for several years. Its first production dual-actuator drive, the Mach.2, is now "available to select customers," meaning that enterprises can buy it directly from Seagate, but end-users are out of luck for now. Seagate lists the sustained, sequential transfer rate of the Mach.2 as up to 524MBps—easily double that of a fast "normal" rust disk and edging into SATA SSD territory. The performance gains extend into random I/O territory as well, with 304 IOPS read / 384 IOPS write and only 4.16 ms average latency. (Normal hard drives tend to be 100/150 IOPS and about the same average latency.) The added performance requires additional power; Mach.2 drives are rated for 7.2 W idle, while Seagate's standard Ironwolf line is rated at 5 W idle. It gets more difficult to compare loaded power consumption because Seagate specs the Mach.2 differently than the Ironwolf. The Mach.2's power consumption is explicitly [URL='https://www.seagate.com/innovation/multi-actuator-hard-drives/']rated[/URL] for several random I/O scenarios, while the Ironwolf line is rated for an unhelpful "average operating power," which isn't defined in the [URL='https://www.seagate.com/www-content/datasheets/pdfs/ironwolf-12tbDS1904-9-1707US-en_US.pdf']data sheet[/URL]. [URL='https://arstechnica.com/?p=1766760#p3']Read 2 remaining paragraphs[/URL] | [URL='https://arstechnica.com/?p=1766760&comments=1']Comments[/URL] [url=https://arstechnica.com/?p=1766760]Click here to view the article...[/url] [/QUOTE]
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Seagate’s new Mach.2 is the world’s fastest conventional hard drive
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