funsec mailing list archives
RE: Database design.
From: Drsolly <drsollyp () drsolly com>
Date: Wed, 7 Jun 2006 15:27:32 +0100 (BST)
On Wed, 7 Jun 2006 Blanchard_Michael () emc com wrote:
"regular" consumer drives are certainly not reliable enough for something of this scope. Drive array manufacturers (not just us, I'm sure others as well) go through great lengths to ensure that the systems will withstand just about anything with a guaranteed zero loss of data. At the risk of sounding like I'm praising the almighty EMC Symmetrix: Heck, take a peek on www.emc.com, I'm sure there is a page that explains our testing of the symmetrix systems (this is our flagship product). They can withstand like a 8.5 earthquake (and have in real life too), temps way down below freezing for weeks on end, temps way above 100deg F for weeks on end. They really are built like tanks, down to the last component....
Great. But we don't get earthquakes in England, it never goes above 100F, and it only goes below freezing on the worst winter nights.
I'm positive that NetApp, IBM, etc all put their storage systems through similar testing, although I don't think they are all as thorough with their testing.
There isn't a consumer IDE or SATA drive that will withstand that kind of torture and not skip a beat. The drive systems is certainly not the place to "penney-pinch" on a project as huge as the one the UK is going to undertake.
The drive systems are a very good place to economise by using the two ideas of redundancy and inexpensive drives. My point is that huge ultra-reliable do-it-all systems are great, but currently we're laying off nurses and can't pay our doctors. Maybe what we need is a cheaper system, and more nurses. _______________________________________________ Fun and Misc security discussion for OT posts. https://linuxbox.org/cgi-bin/mailman/listinfo/funsec Note: funsec is a public and open mailing list.
Current thread:
- Re: Database design., (continued)
- Re: Database design. Drsolly (Jun 06)
- Re: Database design. Valdis . Kletnieks (Jun 06)
- Re: Database design. Drsolly (Jun 06)
- Re: Database design. Blue Boar (Jun 06)
- Re: Database design. Drsolly (Jun 06)
- Re: Database design. Valdis . Kletnieks (Jun 06)
- Re: Database design. Andrew (Jun 06)
- Re: Database design. Drsolly (Jun 06)
- Re: Database design. Valdis . Kletnieks (Jun 06)
- RE: Database design. Blanchard_Michael (Jun 07)
- RE: Database design. Drsolly (Jun 07)
- Re: Database design. Brian Loe (Jun 07)
- Re: Database design. Drsolly (Jun 07)
- Re: Database design. Brian Loe (Jun 07)
- Re: Database design. Drsolly (Jun 07)
- Re: Database design. Brian Loe (Jun 07)
- Re: Database design. Drsolly (Jun 07)
- Re: Database design. Andrew (Jun 07)
- Re: Database design. Drsolly (Jun 07)
- Re: Database design. Valdis . Kletnieks (Jun 07)
- Re: Database design. David Lodge (Jun 06)