Solved: Install not using whole disk

[Tom Mitchell]

On Fri, Jun 3, 2022 at 7:10 PM Ralf Mardorf via ubuntu-users
<ubuntu-users at lists.ubuntu.com> wrote:
>
> On Fri, 3 Jun 2022 20:20:00 +0100, ubuntu at howorth.org.uk wrote:
> >If you have lots of little files then there's still nothing that beats
> >reiserfs despite it being deprecated and removed slowly. If you have
> >larger files then it's difficult to beat xfs.
>
> Everything beats a discontinued file system.
>
> Disclaimer: I'm not an expert in this domain.
>
> Do you want to run the server with read and write access while doing
> backups? Consider to read
> https://en.wikipedia.org/wiki/Snapshot_(computer_storage)
>
> Do you want to ensure to never ever run out of inodes?
> Consider to read
> https://en.wikipedia.org/wiki/Inode
>
> Other considerations are probably RAID
> https://en.wikipedia.org/wiki/RAID#Software-based
> or resizing
> https://en.wikipedia.org/wiki/Comparison_of_file_systems#Resize_capabilities
>
Nice summary.
Backups while running are difficult.
I am a fan of raid mirroring if a system is to be backed up.
It can be SLOW.
i.e.  disk mirroring (RAID 1)
Another strategy is rsync using sub directories.
The use of rsync allows refreshing and checking for changes.
Database systems are special and the database needs to have a backup tool set as
data lives on a giant file or a raw device.

My advice is to experiment.  All these tools and strategies can be
explored with a handful of inexpensive USB memory sticks.  A powered
USB hub allows
extra devices for a power or port starved machine.  A powered USB hub allows old
Raspberry Pi experiments with a lot of devices.
Most of us have an old laptop that allows fun and games with a
USB hub full of USB storage devices is inexpensive.

I am sure there are better and more current references but this link reads well.
Remove the []'s. Scan down to RAID-1
https[://]kifarunix[.]com/setup-software-raid-on-ubuntu-20-04/
also
https[://]discourse[.]ubuntu[.]com/t/installation-advanced/11577