RAID mirror really worked

[Sten Daniel Soersdal]

Wojciech Puchar wrote:
>>>> gmirror works too very good without any hardware :)
>>
>> CB> Yes, but a hardware RAID works without the OS having to know about 
>> it. :-)
>>
>> ...and its failures? ;)
>>
> :)
> 
> for mirroring there is almost no CPU overhead so buying extra hardware 
> doesn't make sense at all. not mentioning that most of such hardware are 
> actually normal disk controllers with extra soft in BIOS. these are 
> supported by ataraid driver.
> 
> 
> much better is to use gmirror so it will be completely portable.
> 
> and - with gmirror you DO NOT have to mirror/stripe/concat whole drives.
> and that's what i do most often - mirror important data but store 
> unimportant data without it.

... But with a raid controller mirror you do not have to send the data 
twice over the host bus.

gmirror is awesome

-- 
Sten Daniel Soersdal