From: John Serafin (jps_at_pobox.com)
Date: Wed Dec 11 2002 - 12:13:43 EST
I have found out some more about 24x7 rated travelstars on IBM's web pile.
I no longer have the links as my steps have been forgotten over a 10 hour
plane ride followed by a long hard day at work, and I had to do some
aritmetic myself. A lot of info is at:
Basically, a regular drive is rated for 20000 power on hours at 333 POH/month
with a 20% read and/or write duty cycle. (or 5 years, whichever comes first)
A 24x7 rated drive is rated for 30000 POH and a 50% read and/or write duty
cycle. It would seem that the bearings have been beefed up on the higher
rated drives (based on speculations on the net as to why 2.5" drives
aren't as durable as 3.5" drives).
In my opinion, (I am NOT a business/marketing/management/legal type),
an insurance/warranty scheme would not couple a 50% increase in total
power on hours with more than double power on and read/write duty
cycles.
Still no evidence of actual drives for sale.
I am now leaning toward an external 3.5" firewire/usb drive for my
current needs.
-- John P. Serafin | Operating a bicycle is more like driving than riding. jps at pobox com | Operating an automobile is more like riding than driving.
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