On 1/10/23 20:20, Robert Moskowitz wrote:

...

Official drives should be here Friday, so trying to get reading.

On 1/9/23 01:32, Simon Matter wrote:

...

Hi

...

Continuing this thread, and focusing on RAID1.

I got an HPE Proliant gen10+ that has hardware RAID support. (can turn it off if I want).

What exact model of RAID controller is this? If it's a S100i SR Gen10 then it's not hardware RAID at all.

Yes, I found the information:

HPE Smart Array Gen10 Controllers Data Sheet.

Software RAID

· HPE Smart Array S100i SR Gen10 Software RAID

Notes:

• HPE Smart Array S100i SR Gen10 SW RAID will operate in UEFI mode

only. For legacy support an additional controller will be needed

• The S100i only supports Windows. For Linux users, HPE offers a

solution that uses in-distro open-source software to create a two-disk RAID 1 boot volume. For more information visit: https://downloads.linux.hpe.com/SDR/project/lsrrb/ ==================== I have yet to look at this url.

This guide seems to answer MOST of my questions.

I didn't know this guide from HPE. What I'm not sure is how well it is supported now for newer distributions like EL9. I could be wrong but I think EL9 already supports setting this up out of the box without any additional fiddling.

In my case years ago with EL7 I simply put /boot/efi on a partition on disk 0 and another one on disk 1, like so:

/dev/nvme0n1p1 200M 12M 189M 6% /boot/efi /dev/nvme1n1p1 200M 12M 189M 6% /boot/efi.backup

To keep the filesystems in sync I've added a hook to our package update mechanism which simply calls this bash function:

EFISRC="/boot/efi" EFIDEST="${EFISRC}.backup"

efisync() { if [ -d "${EFISRC}/EFI" -a -d "${EFIDEST}/EFI" ]; then rsync --archive --delete --verbose "${EFISRC}/EFI" "${EFIDEST}/" fi }

If I had to install this today I'd like to put it on RAID as discussed.

Regards, Simon