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perpendicular hdd speculation


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perpendicular hdd speculation
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intlplby
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Join Date: Dec 2004
 
2006-05-09, 11:58

i read somewhere that with the perpendicular recording, 3.5" hdds could be up to 1.6gb by the end of the year.

is this really possible?

i know seagate jumped quickly from 500 to 750 with the first perpendicular hdd.

how big do you think perpendicular hdds will be by december this year.

i also read on gizmag that hitachi plans on having a 5gb 3.5" hdd by 2010
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mattf
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Join Date: Feb 2005
Location: Devonshire - nearly twinned with Narnia
 
2006-05-09, 12:02

Quote:
Originally Posted by intlplby
... 1.6gb ...5gb 3.5" hdd by 2010
I take it you mean TB?
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benkraft
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2006-05-09, 12:03

Quote:
Originally Posted by intlplby
i read somewhere that with the perpendicular recording, 3.5" hdds could be up to 1.6gb by the end of the year.
Don't know about the rumor you heard, but at any rate one would hope that they'd be 1.6 TB...

Edit: Oooh, beaten to the punch by seconds....

Quidquid vis fieri, fac; facienda faciet nullus pro te.
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tannenhauser
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Join Date: Aug 2005
 
2006-05-09, 12:32

what is a 3.5 perpendicular hard drive? what is it used for?
can someone fill me in?
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Majost
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Join Date: Nov 2004
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2006-05-09, 12:35

Wikipedia knows all

It's probably best summed up by this diagram on that page:

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chucker
 
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2006-05-09, 12:36

Quote:
Originally Posted by tannenhauser
what is a 3.5 perpendicular hard drive? what is it used for?
can someone fill me in?
Perpendicular recording is a technique to allow denser data storage.
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mattf
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2006-05-09, 13:03

If you want a non-techy explanation of Perpendicular recording, take a look at the Get Perpendicular song (Warning: Flash-based, silly song alert)
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Kickaha
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Join Date: May 2004
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2006-05-09, 13:07

Man, you guys make it too difficult.

Look, take your hard drive, turn it on its edge. Now it's perpendicular.

Sheesh.
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pilot1129
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2006-05-09, 15:20

That explains why my powerbook runs faster and has more memory when I hold it sideways
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intlplby
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2006-05-09, 15:22

anyone want to talk about my original question? (yes Tb not GB... oops)
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hmurchison
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2006-05-09, 17:30

Even though we could indeed break the 1TB barrier with a single 3.5in drive I expect Seagate, Hitachi etc to milk the transition. They've cut the platter/heads of their SCSI 15k drives in half so that tells us that they could ship a 500GB or larger SCSI drive if they wanted to using the same tech. It all boils down to cost. Currently we have around 188GB per platter. So adding another platter to the current 750GB drives puts us at 940GB just under a TB.

I don't expect TB drives to hit for another year as they reap the rewards of the 750GB drives.

omgwtfbbq
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intlplby
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2006-05-09, 23:37

the milking things would suck... hopefully competitive practices means they would release them sooner to beat each other out
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Matsu
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2006-05-10, 08:28

Hopefully 2.5" laptop drives move up soon. They are lagging behind and could really use it...
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hmurchison
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2006-05-10, 09:27

Quote:
Originally Posted by Matsu
Hopefully 2.5" laptop drives move up soon. They are lagging behind and could really use it...

The Seagate Momentus 5400.3 already uses Perp recording to hit 160GB. Hitachi has a 4200k 200GB laptop drive due to hit this year as well.
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scratt
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2006-05-10, 09:30

Quote:
Originally Posted by hmurchison
The Seagate Momentus 5400.3 already uses Perp recording to hit 160GB. Hitachi has a 4200k 200GB laptop drive due to hit this year as well.
I didn't know that.. Cool.

I am using Seagate's Momentus drives at the moment, and so far have found them excellent compared to Toshibas and others... Can't wait to upgrade to one of those for my next one..

'Remember, measure life by the moments that take your breath away, not by how many breaths you take'
Extreme Sports Cafe | ESC's blog | scratt's blog | @thescratt
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Matsu
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2006-05-10, 11:20

iDunno anything about this stuff, but where have sustained and burst transfer rates for individual drives gone in the last few years? I imagine that with increased density, sustained data read rates have increased as well. While I don't imagine that a single drive can saturate SATA150, what about USB2 and FW400?

Just another reason why Apple shoud push FW800 or expresscard on ALL their non tower products...

.........................................
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intlplby
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2006-05-10, 11:37

i think these should be more of a push to make raid a standard option on desktops


i would love to see the incorporation of a 4 drive raid internally in a g5..... if we really want to move towards higher sustained and burst transfer rates......it should also be hotswappable
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hmurchison
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2006-05-10, 12:50

The only problem is that RAID is still relatively expensive. The ideal situation is to have a RAID controller that alleviates the burden from the CPP and to have Battery Backed Write Back cache. Servers don't normally get tweaked with like a workstation so they don't crash as much but in a workstation you're multitasking. In RAID 5 it's possible to get corrupted data without the system knowing it due to crashes where writes don't complete.

I'd personally love to see perp recording in 2.5" Small Form Factor drives running at 10k. Add 4-6 of these drives to a Workstation boosts your IOPS accordingly yet they'd take up the same space as 3 3.5" drives. The problem is most SFF drives max at 73GB we need them to hit 146GB for SAS/SATA

omgwtfbbq
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intlplby
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2006-05-10, 17:57

i gguess with ZFS it would be possible in Raid-z instead of raid-5
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curiousuburb
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2006-05-15, 06:18

*Bump*

C|Net/News.com chimes in on this topic with some linkage...

Hitachi stresses better chemistry on perpendicular drives
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709
¡Damned!
 
Join Date: May 2004
Location: Purgatory
 
2006-05-15, 13:11

Hitachi has posted a very enlightening movie explaining the ins-and-outs of perpendicular HDs. It's quite technical, but well worth it.
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MrENGLISH™
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Join Date: Jan 2006
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2006-05-15, 13:19

Quote:
Originally Posted by mattf
If you want a non-techy explanation of Perpendicular recording, take a look at the Get Perpendicular song (Warning: Flash-based, silly song alert)
Quote:
Originally Posted by 709
Hitachi has posted a very enlightening movie explaining the ins-and-outs of perpendicular HDs. It's quite technical, but well worth it.

AWESOME! This is like a NEW School House Rock video!

EDIT: Sorry mattf, I missed your post too

Last edited by MrENGLISH™ : 2006-05-15 at 13:47.
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mattf
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Join Date: Feb 2005
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2006-05-15, 13:37

Quote:
Originally Posted by 709
Hitachi has posted a very enlightening movie explaining the ins-and-outs of perpendicular HDs. It's quite technical, but well worth it.
*cough*
^
Quote:
Originally Posted by mattf
If you want a non-techy explanation of Perpendicular recording, take a look at the Get Perpendicular song (Warning: Flash-based, silly song alert)
*cough*

Sorry, nasty cough I have at the moment
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709
¡Damned!
 
Join Date: May 2004
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2006-05-15, 13:38

Shits. I did not see that.
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Swing
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Location: Paris
 
2006-05-15, 14:41

Quote:
Originally Posted by mattf
If you want a non-techy explanation of Perpendicular recording, take a look at the Get Perpendicular song (Warning: Flash-based, silly song alert)
uh oh, while playing that 'song' my PB crashed for the first time ever . . . I guess I'd better run a hardware test and some OnyX routines . . .
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