Re: [tlug] SATA software RAID or SAS hardware RAID?

[Edward Middleton <edward@example.com>]

> On Fri, 15 Dec 2006, Stephen J. Turnbull wrote:
>> Also, while I'm no expert, getting multiple anything to perform better
>> than a single piece of hardware seems to be non-trivial.
>
> Well, it depends on what exactly you're trying to make it perform. The
> cost of making something perform reliably can be altered dramatically
> by changes in the structure of the system and the application. So
> Google, for example, manages to avoid the quite difficult job of keeping
> a single machine and set of drives up and running despite hardware
> and environment failures by having a system that doesn't care if a
> particular machine vanishes in a puff of smoke.

Googles situation is a bit unique, at least in their search engine
section, they don't have to worry so much if the data on the machine
goes up in a puff of smoke. Most other systems can't ignore data loss.

Edward