I am s0lkanar1 in the https://github.com/xcp-ng-rpms/microsemi-aacraid/issues/2 thread. I'll reply there when I have more information.

I'll try more testing when I get a chance. I did try that test version first on a stripped down test computer with the relevant RAID card and the upgrade worked on the 2nd attempt, but when I tried on an in-use system with a bunch of running VMs, it was hanging on the install during my two attempts (the VMs were backed up in case of emergency). It didn't damage the 8.2.1 install. I didn't know to grab the dmesg output though before falling back to 8.2.1. It takes some time to set things up to do the tests, but I'll try to do that soon.

0nelight created this issue in xcp-ng-rpms/microsemi-aacraid

open Microsemi Adaptec Series-8 Card not working in XCP-NG 8.3 #2

I have a system with an older Adaptec ASR-71605 RAID card that has been working fine with XCP-ng 8.2.1. Otherwise the system is Intel 14th gen consumer grade hardware. When I attempt to upgrade to XCP-ng 8.3 by running the downloaded ISO from a bootable USB drive, the installation freezes during the step to "backup the old installation". After several tries and a few hours of waiting, I gave up on the normal upgrades. Sorry, I didn't save the log, but there was a lot of AACRAID timeout errors like those shown in this photo.

Then I tried to upgrade to 8.3 using the alternate kernel, and this works. The server will be up and running for some hours, or a few days, but eventually the VMs and hypervisor seem to lock up (ALL storage is connected to RAID through the Adaptec card). The photo above is the result of this issue. Everything seems to lose, or at least have extremely slow access to the disks.

I did not try running the server with the alternate kernel, just installing with it. I don't know if the alternate kernel would be stable with the Adaptec card in the long term.

For now I left the system at 8.2.1. I'm sure I can replace the RAID card with a newer supported card, which I may do, but I'm wondering if there's a simple and known fix for the older cards that worked on 8.2.1 but eventually stop working on 8.3?