On 12/31/24 12:56, Andrew M.A. Cater wrote:
On Mon, Dec 30, 2024 at 11:32:17PM -0500, gene heskett wrote:
Marc
Good question Marc. I'm searching for someone who knows how to combine 4
ea 4T SSD's into one volume for use with amanda, the lvm docs are
somewhat confusing, lacking the context that actually teaches.

Hi Gene,

Five steps:

Ideally done when you do your reinstall :)

1. Decide whether you want RAID to provide some level of disk redundancy with
LVM over the top. If so, and you've got 4 disks, maybe go for RAID5
12TB capacity and one spare disk or RAID 6 where you can afford to lose
two disks for 8TB capacity..
I have 5 of those 4T SSD's. figuring on using one for a holding disk. So it willl always be empty at the end of a run
2. In the installer, use the RAID element to set up the disks as one md array
what installer? this is a pi clone but faster than a pi, install is putting the .iso on a 64Gb microSD. And maybe moving it to the board mounted m2 for faster booting.
That will give you one md partition spanning the  four disks.

3. Then use the LVM element to set up LVM over the top of the md array you've
just set up.

4. Use guided partitioning on the LVM array to set up one filesystem - ext4
probably.
yes.
5. Assign it a mount point - maybe /data or /amanda and mount it.

If you've got differently sized disks, then you can always set up LVM
across them in the way I've outlined above. If one disk fails, you lose the
lot - but for unimportant data, it works. I have 7TB working that way next
door providing my Debian mirror.

Hope this helps - all the very best, as ever,

Andy Cater
(amaca...@debian.org).
Thanks Andy, Bookmarked FFR.


Cheers, Gene Heskett, CET.
--
"There are four boxes to be used in defense of liberty:
  soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author, 1940)
If we desire respect for the law, we must first make the law respectable.
  - Louis D. Brandeis

.

Cheers, Gene Heskett, CET.
--
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author, 1940)
If we desire respect for the law, we must first make the law respectable.
 - Louis D. Brandeis

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