[nylug-talk] How to set up Raid 1 on Ubuntu, Or Linux in gerneral

Peter C. Norton spacey-nylug at lenin.net
Fri Jun 1 14:56:35 EDT 2007


On Fri, Jun 01, 2007 at 02:10:56PM -0400, sixtyfourbeets wrote:
> >* When taking into account that a 1 second delay on the server
> *>* side could mean, for example, a customer/user getting
> *>* the impression that a web site is taking too long to load;
> *>* trundling along might not be sufficient.
> *>*
> *>* Companies spend time measuring response time on servers
> *>* and finding why a particular machine takes .5 seconds
> *>* longer to respond with a particular software.
> *
> And this has almost nothing to do with the underlying technology, only
> with the care that's gone into selecting the components. BTW, .5
> seconds is forever in serious computing-land. What in the world makes
> you think that a software RAID1 would have any time cost?
> --------------------------------------------------------------------
> A) You are paraphrasing what I wrote.

Hm. Perhaps I misunderstood what you were trying to say in the first
half. It seems as though you are blindly repeating the ATA vs. SCSI
sales hogwash.

> B) Are you saying that software RAID has no impact on system
> performance?

A software RAID 1 will have pretty much zero impact.
 
-Peter

-- 
The 5 year plan:
In five years we'll make up another plan.
Or just re-use this one.



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