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Seagate Upgrades Hybrids, Phases Out 7,200RPM HDDs

Seagate's New SSHD FamilySeagate made two important statements on two successive days – March 4 and 5: First, the company disclosed plans to phase out its 7,200 RPM 2.5″ notebook HDDs, and second, Seagate announced a new line of Momentus XT hybrid hard drives, which the company calls: “Solid State Hybrid Drives” or “SSHDs.”

Are these two announcements related?  Well, The SSD Guy thinks they are!

Higher-RPM HDDs help to accelerate disk accesses by a small percentage while a hybrid can boost speeds significantly.  According to Seagate, Continue reading

Why Don’t HDDs Spin Faster than 15K RPM?

Some claim this to be a pohoto of a jet breaking the sound barrierSome folks who look at the speed difference between HDDs and SSDs ask themselves why HDD makers don’t defend their market against the SSD menace by cranking the speed beyond 15,000 RPM.  An unfortunately popular answer is that the edge of the HDD would have to break the sound barrier and the HDD would shatter.  Is this true?

With a little back-of-the-envelope calculation The SSD Guy can rapidly disprove this. (Forgive me, but I am going to mix metric and English measure here.)

The speed of sound is Continue reading

Contact

Jim Handy
Objective Analysis
SSD Market Research
+1 (408) 356-2549
Jim.Handy (at) Objective-Analysis.com

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