Re: Seeking advice and documentation on non-standard software RAID1 setup

[Pascal Hambourg <pascal.mail@plouf.fr.eu.org>]

Hello,

Andrei Popescu a écrit :
> 
> - make a software RAID1 on my laptop between a SD card and a partition 
>   on the builtin HDD
> - whenever I want or need to use the other laptop I use the SD card to 
>   boot from it and work in my environment
> 
> This way I can enjoy my work environment on whatever machine I work and 
> also have a sort of backup.
> 
> My questions are:
> 
> 1. Is this setup possible and/or feasible?

Yes, but my advice is : don't do this. RAID provides redundancy, not
backup. Better use a real backup/synchronisation solution.

> 3. Any other issues I haven't thought of (I have zero experience with 
> RAID)

- If something goes wrong, you may lose all the data.
- The RAID device on the hard disk drive will need to be synchronized
(i.e. rebuild) everytime you swap the SD card.