What happens with the disk drive manufacturers is that they will test the HD as part of the last step in the manufacturing process. They will classify them as to their reliability. The drives with the best reliability results will be sold as drives for SAN products. The drives with reliability in the mid range are used for mid range servers and the drives with the lowest reliability are used for home PC/consumer market.
So, if you have a SAN and you go to your local PC store and buy a 500GB SATA drive and put it into the drive cradle for the SAN and try to load that drive into the SAN it will quickly be rejected.
If you were to purchase a SAN drive and take the HD out of the SAN drive cradle and use it on your PC/Server/Whatever you will have a much more reliable disk drive.
Phil
-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Charles Steinkuehler Sent: Tuesday, June 26, 2007 4:34 PM To: Billy Crook Cc: [email protected] Subject: Re: Stress Testing Hard Drives
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Billy Crook wrote:
I think they should lable hard drives with their halflife.
No hard scientific evidence here, but anecdotal accounts show the new(ish) 500-Gig SATA drives have a *MUCH* shorter half-life than the previous generation of 250-Gig drives.
The company I work for (NewTek) is shipping pre-configured video editing systems, and the latest includes a 500-Gig drive. They half-life (ie: blink out of existence) so quickly I had difficulty finding enough units to stress-test the imaging system. Of course, the inventory system indicated there were plenty available...
Other items with short half-lives:
- Oscilloscope probes (Why are they called 10:1 probes?
Because they ten(d) to one(run) away! <groan>).
- Sticks of DRAM
- Miniature screwdrivers
- Favorite pens/pencils
Charles Steinkuehler [email protected] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.0 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org
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