Re: which is better: promise fasttrak-lite 100 or linux software raid?

On 2004-02-17T08:37:05,
   Matt Thrailkill [off-list ref] said:

A Hardware raid controller is always an add-on card, it never comes
distributed on a motherboard. It has a bios which you can enter before
booting into any OS and usually supports 0,1,1+0,and 5 at a minimum. It
has a full CPU onboard that does all raid calculations and I/O, and
displays itself to the OS as configured by the raid controller (i.e. if
you configure a single raid 5, from 3 drives, it will show up by the OS
as one big drive). A Hardware RAID will always be faster than a software
raid, and consumes MUCH less CPU time.

The first part of the last sentence is wrong.


Sincerely,
    Lars Marowsky-Brée [off-list ref]

-- 
High Availability & Clustering	      \ ever tried. ever failed. no matter.
SUSE Labs			      | try again. fail again. fail better.
Research & Development, SUSE LINUX AG \ 	-- Samuel Beckett

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