[BlueOnyx:01341] Re: RAID

[Chris Gebhardt - VIRTBIZ Internet]

Tony C. Loosle wrote:
> i will check that one out.
>  
> The LSI Megaraid is natively supported by Cent OS5, and I can get to the 
> screen to select the driver, but it never finds the array?

This has been discussed in some detail previously on this list.   The 
LSI Megaraid is one of a family known as "fakeraid".   ie: it's not a 
true hardware RAID, and relies upon software (drivers) to operate.

In the opinion of many, fakeraid is to be avoided, since it offers 
questionable benefit as to reliability, and debatable benefit when it 
comes to performance.

As Xin has noted, often times the Linux software RAID will perform just 
as well in most situations, if not better.

If it were me, I would never trust a production system with a "fakeraid" 
controller enabled.   I'd sooner run the controller as a standard drive 
controller (ie: turn off the RAID) and let the Linux RAID do its thing. 
   There are a lot of reasons for that... many of them from personal 
experience!

-- 
Chris Gebhardt
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