Re: installing Debian 10 to 3 hdds as one big system

[David Christensen <dpchrist@holgerdanske.com>]

On 8/11/19 12:42 AM, Reco wrote:
> On Sat, Aug 10, 2019 at 05:25:30PM -0700, David Christensen wrote:
> > On 8/10/19 3:55 PM, Pascal Hambourg wrote:
> > > Le 10/08/2019 à 19:27, David Christensen a écrit :
> > > > On 8/10/19 4:35 AM, Andy Smith wrote:
> > > > > Personally I would use the three devices as a RAID-10 which would
> > > > > result in half the capacity of the total (768G) and you could
> > > > > withstand the loss of any one device.
> > > >
> > > > RAID 10 requires 4 drives:
> > >
> > > Not Linux implemention of RAID 10, which requires at least 2 drives.
> >
> > Do you have a URL or man page that describes this?
...
> https://raid.wiki.kernel.org/index.php/A_guide_to_mdadm#Raid_10


Thanks for the pointer.  STFW:

    https://en.wikipedia.org/wiki/RAID_10

    "... a nonstandard definition of "RAID 10" was created for the Linux
    MD driver ..."

    https://en.wikipedia.org/wiki/RAID#Non-standard_levels

    https://en.wikipedia.org/wiki/Linux_MD_RAID_10#Linux_MD_RAID_10


So, "Linux MD RAID 10" can be RAID 1, RAID 10, or something totally 
different.


Co-opting and redefining standard terms is bad engineering.


David