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Hard drive platters number

  • Hard Drives
  • Storage
Last response: in Storage
May 3, 2010 9:44:07 PM

Is there any way to determine the number of platters that a hard drive has without opening it?

(I've just bought a WD5001AALS-00E3A0 hard drive and I'm suspecting it has more than one platter)


More about : hard drive platters number

a b G Storage
May 3, 2010 10:18:42 PM

I did some searching, and couldn't find any resources which gave me that information. I would read the label thoroughly, it might have some helpful information.
a c 181 G Storage
May 3, 2010 10:43:37 PM

I had a bookmark on my son's computer that listed this info for every HD in production .... he reinstalled Firefox and lost it :( 

I know I posted it in one of the threads I participated in but w/ 4400+ posted messages, wasn't going to look for it tonite :) 
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a b G Storage
May 3, 2010 11:57:47 PM

You can guess at platter size based on the raw transfer rates. Aside from that, I don't know of any way.

What's making you suspicious?
a b G Storage
May 4, 2010 2:55:48 AM

The advertised transfer rates on this model drive are between the 1 and 2 terr drives of the same interface- that much I did find out. Actually, the numbers are somewhat interesting. Taken from a WD document copyrighted 2010, the "data transfer rate (max) | host to/from drive (sustained)" for the black series are;
2T (sata 3G) 138MB/s
1T (sata 6G) 126MB/s
1T (sata 3G) 106MB/s
750G(sata 3G) 106MB/s
640G(sata 6G) 126MB/s
640G(sata 3G) 113MB/s
500G(sata 3G) 113MB/s
May 5, 2010 7:57:46 AM

Thanks for your answers.

My HDD transfer rates are:
minimum:49.7 MB/s
maximum:104.4 MB/s
average: 84.0 MB/s

And the access time 12.4ms

I am suspicious because the drive runs idle at 42°C and it is so heavy and thick ...
a b G Storage
May 5, 2010 11:28:10 AM

How is your airflow?
May 5, 2010 11:59:20 AM

To find out the number of platters in your hdd use "Everest Ultimate Edition". It is a software which gives you any info you want about your hardware.