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Comment: Ignores how disks often fail (Score 1) 182

My understanding is that disks often fail when a head touches the surface, or a piece of dirt gets between the head and the surface. Once that happens, more dirt is produced, increasing the probability of more head crashes, leading to a failure cascade. As a consequence, once one of my drives starts to show unrecoverable errors, corresponding to damaged surface areas, I replace it while it can still be read.

The spare platter strategy does nothing to reduce this failure mode. In fact, all modern disks already have spare space for bad block relocation.

Comment: How do you know? (Score 1) 275

by MarcAuslander (#43611207) Attached to: Condensation On Your Beer != Good

People always claim that bad beer tastes like piss. And I always wonder how they know! Which reminds me of a childhood memory. We were in the Catskills in what was then called a bungalow colony. One day, for some reasons, the owner had to siphon some gas, which he started by sucking on the hose. My dad asked what it tasted like - it tastes like manure he said. Once we were away, my dad wondered aloud how he knew.

Comment: Marketing to cover weakness (Score 1) 153

by MarcAuslander (#42279387) Attached to: Google Loses Santa To Bing

The story prompted me to look at bing maps. Very first direction request produced a poor route. When dragging the route to change it gives less time and distance, you know it's not the source to use! There is no way to reset a drag! etc. etc. I'll stick with google.

But one wonders how this government agency was co-opted.

Comment: Security Questions deemed dangerous (Score 1) 87

by MarcAuslander (#40079515) Attached to: WHMCS Data Compromised By Good Old Social Engineering

It has been pointed out many times that the security question system is dangerous if the user does what he's told. It is in general easier to find out what someone's high school mascot was than to guess his password! My approach it to provide nonsense answers I can retrieve for all such question. No one's going to guess that my mother's maiden name was bottleofbitsofstuff for example. You can use the same answer for all questions if they let you, or use obvious variants otherwise.

+ - When backups and redundancy fail->

Submitted by MarcAuslander
MarcAuslander (517215) writes "dslreports, a forum site covering ISP's and Cable, has lost its web site. A summary of how this happened is at http://www.dslreports.com/shutdown.html. All the backups and raid in the world don't help if you are not set up to recover from failures. And after a failure happens it's too late to start practicing."
Link to Original Source

+ - What do WiFi signal looks like?->

Submitted by MarcAuslander
MarcAuslander (517215) writes "Have you ever wondered what the WiFi signal looks like around your office, school, or local café? In this video, Timo Arnall, Jørn Knutsen, and Einar Sneve Martinussen show you the invisible. And they pulled this off by building a WiFi measuring rod, measuring four meters in length, that can visualize WiFi signals around Oslo, Norway with the help of long exposure photography."
Link to Original Source

Comment: Assigning new values to constants can be useful! (Score 2) 305

by MarcAuslander (#39153077) Attached to: Stroustrup Reveals What's New In C++ 11

I was amused by the comment "If that incr(0) were allowed either some temporary that nobody ever saw would be incremented or - far worse - the value of 0 would become 1. The latter sounds silly, but there was actually a bug like that in early Fortran compilers that set aside a memory location to hold the value 0. "

Back then, I wrote Fortran subroutines which took computed dimension arrays by declaring the arrays with crazy bounds, numbers I hoped would never be used as constants, and then "assigning" the real bounds to the "constants".

Those were the good old days.

Nothing succeeds like the appearance of success. -- Christopher Lascl