:: Re: [DNG] install on a raid 1 array
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Author: Hendrik Boom
Date:  
To: Devuan ML
Subject: Re: [DNG] install on a raid 1 array
On Wed, Jun 01, 2022 at 05:16:05PM -0500, o1bigtenor via Dng wrote:
> On Wed, Jun 1, 2022 at 4:57 PM tito via Dng <dng@???> wrote:
> >
> > On Wed, 1 Jun 2022 16:34:21 -0500
> > o1bigtenor via Dng <dng@???> wrote:
> >
> > > Greetings
> > >
> > > When the parts get here I'm going to be installing Devuan testing on
> > > the system.
> > >
> > > I have not ever installed like this so first the configuration.
> > >
> > > Ryzen 7 3800X
> > > Asus TUF Gaming X570-Pro mobo
> > > 64 GB ram
> > > 2 - 1 TB M2 drives
> > > 2 - 1 TB SSDs
> > >
> > > I want to set the system up so that the drives are 2 sets of Raid-1 with
> > > (proposed)
> > > set 1
> > > /efi, /boot, /, /usr, /usr/local, /var, swap
> > > set 2
> > > /home
> > >
> > > How do I set up the raid arrays?
> >
> > They could be easily setup during installation process in the disk partitioning step if I recall
> > it correctly. See https://wiki.debian.org/DebianInstaller/SoftwareRaidRoot
> > for more info (just the first part).
>
> Interesting - - - that wiki is current as of 2012.
> That's why I wasn't trusting the information - - - - the newest stuff
> I could find was
> some 3 or 4 years old and I've found that newer stuff has different
> gotchas than
> the older versions.
>
> The assumption is that LLVM is used on top of the array. (from the wiki)
> Is that necessary?
> (I've never used LLVM to date!)
>
> My idea was to partition the disks just like normal after the array was built.
> Is that possible?


Yes, it is possible. I use LVM over RAID on my system because it offers more flexibility if I have to repartition.

In fact, I have two separate RAID 1's -- one for partitions that are divided up the traditional way, and the other for partitions that are done with LVM.

/boot is on the traditionally divided RAID. Back when I set it up, if /boot was on a RAID it had to be a RAID of the old format, not the new. I don't know if that still applies.

And, LVM is the Logical Vomume Manager. LLVM is the Low Level Virtual Machine, used by some compilers (such as clang) in generating object code.

-- hendrik
>
> TIA
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