Linked by Thom Holwerda on Fri 18th Sep 2009 13:40 UTC, submitted by Robert Escue
Hardware, Embedded Systems This is an article which discusses the increase in storage capacity while performance and hard error rates have not improved significantly in years, and what this means for protecting data in large storage systems. "The concept of parity-based RAID (levels 3, 5 and 6) is now pretty old in technological terms, and the technology's limitations will become pretty clear in the not-too-distant future " and are probably obvious to some users already. In my opinion, RAID-6 is a reliability Band Aid for RAID-5, and going from one parity drive to two is simply delaying the inevitable."
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zlynx
Member since:
2005-07-20

Flash memory (if that is what you mean by solid state) fails over time as well.

Reply Parent Score: 2

MamiyaOtaru Member since:
2005-11-11

Flash memory (if that is what you mean by solid state)

Hint: take a guess what the SS in SSD stands for.

But yeah, it does fail over time. And the situation is not likely to get better as it goes through process shrinks.

Reply Parent Score: 2

zlynx Member since:
2005-07-20

Hint: There are more types of "solid state" storage than Flash EEPROM.

There is battery backed RAM, there is MRAM, there is stuff in the laboratories that might make everything we use as storage obsolete. Someday.

http://en.wikipedia.org/wiki/Racetrack_memory is completely awesome, for example.

There is even nanoscale punch cards: http://en.wikipedia.org/wiki/Millipede_memory

Reply Parent Score: 2