Print 32 comment(s) - last by mindless1.. on Nov 19 at 4:52 PM

Hard drive shuts itself off after detecting the laws of gravity

Samsung Electronics today introduced its new M80 SATA Series and M80 Series 2.5-inch hard disk drives. Both series utilize Perpendicular Magnetic Recording (PMR) technology, feature an optional free-fall sensors and offer increased storage capacity. Both the M80 SATA and M80 Series comes in 80GB, 120GB and 160GB sizes. 

Samsungs newest 2.5-inch drives offer users increased damage risk protection by incorporating free-fall sensors, which feature a minimum fall detection rate of 30cm. Hard drives enabled with the sensor are able to detect changes in acceleration caused by a freefall, and park the drives head on the ramp and turns the hard drive off, protecting it from damage.

The M80 SATA and M80 Series feature an 8MB cache and a 5,400rpm spindle speed and comes equipped with the Hybrid Latch System, a mechanism that eliminates rattling noises and reduces the clicking noise generated when a drive moves its heads on and off the disk.

The M80 SATA and M80 Series are Samsungs first hard drives based on PMR technology. Unlike traditional longitudinal recording technology, which lays data bits end to end where they can flip and corrupt data on the disc, PMR technology places the data bits perpendicular to the disc, which reduces the corruption factor. In addition, by placing the data bits standing on end, more data can fit onto a disc, allowing for greater storage capacity.

Other hard drive manufacturers have already made headway in the area of PMR technology. Seagate launched 2.5" drives with PMR back in January, and shipped the first 3.5" PMR drives three months later. In May, Hitachi joined the perpendicular ranks in mobile storage with the a new Travelstar. Fujitsu followed during late summer with its MHW2 BH hard drives, and Western Digital with its new Scorpio SATA drive.

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By hughlle on 11/17/2006 2:36:52 PM , Rating: 1
when i drop my laptop from and minimum of 30cm the hard drive is going to be the least of my worries :S

RE: but...
By S3anister on 11/17/2006 2:41:14 PM , Rating: 2
omg i know! that's what i was thinking! like that drop feature should work at 10cm or 15... like seriously if i drop my laptop past 30cm then i'm going to be VERY worried about the screen, cpu... really all of it.

RE: but...
By Aikouka on 11/17/2006 2:44:50 PM , Rating: 4
The point is that at least now you won't have to worry about losing your data as it'll be protected. I mean you can easily replace a screen, but sometimes losing data can just be hard/impossible or very time consuming to replace.

RE: but...
By daniel1113 on 11/17/2006 2:42:36 PM , Rating: 5
Not if you have important data stored on it. Everything else is replaceable.

RE: but...
By mindless1 on 11/17/2006 5:19:11 PM , Rating: 2
By definition, if that data is "Important", it isn't only stored on a laptop hard drive.

RE: but...
By Hare on 11/18/2006 4:50:42 AM , Rating: 3
Tell that to the average user...

RE: but...
By shamgar03 on 11/17/2006 2:42:48 PM , Rating: 2
Unless you have valuable data on it...

RE: but...
By hughlle on 11/17/06, Rating: 0
RE: but...
By bohhad on 11/17/2006 4:02:22 PM , Rating: 2
no offense, but that's like saying if you use a car to get to work everyday, you deserve to have it break if you don't have a spare in your garage

RE: but...
By Frank M on 11/17/2006 4:50:23 PM , Rating: 2
Not really, no. Backing up data is free, fast and easy. Anyone who doesn't do it can only blame themselves when they lose data. That said, every bit helps.

RE: but...
By hughlle on 11/17/2006 8:35:23 PM , Rating: 2
my poitnt entirely, backing up data doesn;t mean having a spare computer it just means putting it on a floppy.

i personally have never once had my harddrive in mylaptop braek yet have had my entire laptop smashed up, i am far more concerned with the screen than th harddrive. the harddrive is remarkably robust and it is a simple 30gb drive, not even a perpenticilaur storage jobby

RE: but...
By hughlle on 11/17/2006 8:36:51 PM , Rating: 2
Hard drive shuts itself off after detecting the laws of gravity

no offence but graity is a constant so surely it would remain forever off according to this statment :D

RE: but...
By heated snail on 11/17/2006 4:27:46 PM , Rating: 2
The article said:
which feature a minimum fall detection rate of 30cm.

Hmm, 30cm is not a "rate". Did he mean to say a minimum acceleration? 30cm/s² is a lot less than 1g (~9.8m/s²). This is confusing.

RE: but...
By psychobriggsy on 11/19/2006 6:58:13 AM , Rating: 2
I hazard a guess that it means that if you drop the laptop containing the hard drive, after falling for 30cm the hard drive will have protected itself.

Old News??
By wwwebsurfer on 11/17/2006 2:01:38 PM , Rating: 2
How is this significant? IBM/Lenovo has been doing this for years, and Apple is picking up on it too.

Even better, in a few years we'll be looking at SS HDD's anyway...

RE: Old News??
By captchaos2 on 11/17/2006 2:22:02 PM , Rating: 2
Seriously, I can't wait for my first SS drive, and then I'll be using SD memory chips in a card reader instead of CD's/DVD's in an optical drive, and then I'll have a perfectly silent desktop!

RE: Old News??
By FPSfan on 11/17/2006 2:51:15 PM , Rating: 2
I could be wrong, but I believe that this is "significant" now because this drive has both Perpendicular Magnetic Recording technology AND Freefall sensing. (I don't believe that IBM/Lenovo and Apple have been doing the PMR tech for YEARS, since some of the first 2.5" HDDs w/PMR only came out in January of this year.)

Agree w/you on the eager anticipation of Solid State drives as well.

RE: Old News??
By Motley on 11/18/2006 4:28:52 AM , Rating: 2
Obviously you haven't a clue. Read the article. The *FIRST* 2.5" PMR drives were shipped in January (by Seagate, not IBM/Lenovo or Apple), and then they (Seagate) shipped the FIRST 3.5" PMR drives a few months later. NOONE has been doing it for years. And it's significant because it increases the density of the data by 30%ish, making the drive throughput (given everything else equal) by 30%. And everyone knows laptops sure could use a faster hard drive.

RE: Old News??
By Trippytiger on 11/18/2006 5:16:53 PM , Rating: 2
IBM and Apple have accelerometers on the system board that detect if the laptop is falling and then tell the hard drive to park the heads. These hard drives have all of that functionality on board, so you could use them in any laptop and get the same kind of protection. That is significant.

Will they last?
By Jeff7181 on 11/17/2006 4:01:07 PM , Rating: 2
I've been reading that these perpendicular storage drives could end up failing sooner than expected because the heads actually make contact with the platter surface and if there's not adequate lubricant that could cause premature failure. Has anyone see anything that contradicts that?

RE: Will they last?
By mindless1 on 11/17/2006 5:21:22 PM , Rating: 2
If you'e expecting us to counter random unfounded speculation, here goes: a layer of cheese-whiz will keep the bits where they belong. Have you seen anything that contradicts that?

RE: Will they last?
By Motley on 11/18/2006 4:24:13 AM , Rating: 2
Yes, I heard if you eat crackers near the new drives with cheese-whiz in them, the tiny cracker particles get stuck the to platter until it gets so heavy that it can't spin anymore.

RE: Will they last?
By Jeff7181 on 11/19/2006 4:47:01 PM , Rating: 2
ORLY?!? That's interesting... but what's even more interested is that I read somewhere that insulting people on the Internet not only makes you feel better about yourself, but it makes your manhood larger too! Looks like you guys are on the right track!

RE: Will they last?
By mindless1 on 11/19/2006 4:52:02 PM , Rating: 2
I take it you don't grasp the nonsensical nature of your supposition that we need to refute something that was never established as reliable, let alone factual, information.

By encryptkeeper on 11/17/2006 3:06:38 PM , Rating: 2
I guess this will be useful the next time I'm playing catch with a 2.5" hard drive.

RE: Hmm...
By Souka on 11/17/2006 6:21:19 PM , Rating: 2
good feature for those who put a 2.5" into a USB enclosure... I've more than once picked up my laptop and forgot about the 120gb usb drive I had attacked.... I've been lucky so far. (the enclousre has rubber strike points, but I'd rather the drive be spun-down before impact!

Also... I use Lenovo laptops on a daily basis at my work... I wonder how this drive AND lenov's will get along with each other!

RE: Hmm...
By Crassus on 11/18/2006 12:11:44 PM , Rating: 2
Or you could simply stop attacking your external hard disk and simply attach it to your laptop. There's not reason to beat it up all the time, even if it has a sensor in it ;c)

I'd like to know some technical details
By zsouthboy on 11/17/06, Rating: 0
By Christopher1 on 11/17/2006 3:31:31 PM , Rating: 2
Well, when a drive is turned off, it SHOULD already have parked and locked the head. If not, you either have a very, very old drive, or very very cheap one.

RE: I'd like to know some technical details
By muffins on 11/17/2006 3:33:36 PM , Rating: 2
i would assume it would be "protected" already when its off

RE: I'd like to know some technical details
By zsouthboy on 11/17/06, Rating: 0
"When an individual makes a copy of a song for himself, I suppose we can say he stole a song." -- Sony BMG attorney Jennifer Pariser

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