Disk Capacity....

From: Paul Koning <pkoning_at_equallogic.com>
Date: Wed Jul 14 15:26:10 2004

>>>>> "Antonio" == Antonio Carlini <a.carlini_at_ntlworld.com> writes:

>> Apparently, 15,000 rpm drives (high end fibre channel drives) have
>> lower capacity than slower drives not just because the areal
>> density is less, but also because the platter is smaller. You're
>> getting what is effectively a 2.5 inch drive packaged into a 3.5
>> inch chassis. The reason the platter is that small is that you
>> can't spin a 3.5 inch sized platter at 15k rpm with acceptable
>> motor power.

 Antonio> We ship plenty of FC drives at work - the "lower capacity"
 Antonio> here means (typically) 130GB instead of 250GB. They cost
 Antonio> more too!

Those are the 10,000 rpm ones. The 15,000 rpm ones are smaller still.

      paul
Received on Wed Jul 14 2004 - 15:26:10 BST