old 1GB SCSI drive spin-up, down

[agustinxDable]

I get bored listening to the sound of the hard drive I've seen many that are open not closed so the video has nothing interesnte

[DiskTwenty]

It appears to be a Quantum DSP drive. Just imagining what that drive cost back in the 90s and what was considered "High End" back in those days. I remember when the Seagate Elite 47 came out in 1997 and how everyone at my firm was GAWKING at one ANYONE that would need 47 GBytes of hard disk storage.

[junito510]

why does that hardrive take forever to turn on????????

[37474748]

i want it! :D

[douro20]

5400rpm drive; isn't it a MicroScience hard disk?

[horta85]

1GB!

Wow think of all the data I can store!

[TheGeek1028]

A couple hundred MP3 files?

[horta85]

WOW just imaging when they come up with the 2GB Hard Drive!

Can't wait.

[TheGeek1028]

A couple hundred MORE MP3 files?

[lfstweak420]

well this drive can transfer data at 10 MB/s with SCSI, mine also same rate but is IDE. And stores 40 times as much

[litebeta]

In MPH??? Say you have 4 of these as the car weels , and there wasnt any forces on them atall , Basically its a perfect car..... The radius is 1.75" 3.14*1.75^2= 30.19 (say 30) circumference is 30" = 76.2cm 5400rpm = about 100 revs per seccond 76cm*100Hz= 76 Meters a seccond 76mx60secconds= 4560m (per minute) Thats about 3 miles per minute. 3 miles per minute. 3*60=180 , Thats 180MPH So the car would go at 180MPH Also this drive spins at 10,000rpm or 15,000rpm not 5,400rpm

[danwat1234]

Wow! I don't know if I have ever responded to this comment, but lots of great math!

And no, it is slower than 7200RPM trust me. There are many SCSI hard drives that spun at 5400RPM and possibly slower back in the day.

[christiancapella1]

No tehy span at 150000 RPM

[danwat1234]

no, not all spin at 10K or 15K

checkout Seagate's old SCSI hard drives, such as the ST12505N .

Seagate's current lineup even has 7200RPM SCSI hard drives, the Constellation ES.

SCSI is just a communication Protocol ..

[MrComputerfan]

@danwat1234 What Brand and model is this Drive?

[craiggloyd]

@MrComputerfan I think I recycled the drive a long time ago. I think it was a DEC (if I spelled that right) but I'm not really sure

[MrComputerfan]

@christiancapella1 Hard Drives can spin only to 15000RPM 20000RPM is the maximum.

[danwat1234]

Cetripedal velocity:  2piR/time for one revolution

so (6.28 * 3.5")/(1/5400)=118,752 meters per second. I'm not sure if this drive spins at 5400RPM or a little less.

118,752m to miles::73.789 miles,, then to milesperhour=73.789*3600= 265,640 MPH.

Maybe I screwed up somewhere.

[Tabby266]

danwat1234,

 im confused by all the equations and shit you guys are doing.

[danwat1234]

Read a physics book about centripedal velocity and centripedal acceleration ;)

[EclipseWebJS]

I wonder, how fast does a hard drive spin, in MPH?