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Re: RAID 1 - software or hardware.



yudi v wrote:
> > You would need a second compatible hardware raid controller to use
> > in order to extract the data from the drives.  The hardware raid
> > controllers I have used have not allowed me to access the data
> > without a compatible raid controller.
> 
> If it's in RAID 1, I was under the impression that I would be able to
> mount that disk on another system and be able to access my data. I
> came to this conclusion because in RAID 1 each disk has the full
> contents unlike in parity.

Most motherboard raid controllers are what are called BIOS fake raid
and use a different disk format making the data unreadable on a
different controller in a different system.  The data is all there but
usually simply not accessible by the standard programs because of the
unique format.  Most of the time these are not compatible with other
controllers making data recovery on a different system problematic.

> So what does the data look like when you mount it on another system?

You are in the best situation to know.  Install a test using the
hardware raid and then try moving one disk to a different system and
mounting it there.  If it works then great.  If not then you will
know.  Also you might try benchmarking the different configurations
too.  Often the results are not intuitive.

Bob

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