XCP-ng 8.3 updates announcements and testing

dinhngtu

@ovicz To confirm, you were using the ZFS integration documented here https://docs.xcp-ng.org/storage/#zfs right?

ovicz

@dinhngtu Yes. Like I said, all was good before the update from testing. The host xcp-ng is on another drive and the zfs pool is on other ssd if that matters. The host is using ext4 partitions.

lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
nvme0n1 259:0 0 238.5G 0 disk
├─nvme0n1p5 259:4 0 4G 0 part /var/log
├─nvme0n1p3 259:3 0 512M 0 part /boot/efi
├─nvme0n1p1 259:1 0 18G 0 part /
├─nvme0n1p6 259:5 0 1G 0 part [SWAP]
└─nvme0n1p2 259:2 0 18G 0 part
sda 8:0 0 465.8G 0 disk
├─sda9 8:9 0 8M 0 part
└─sda1 8:1 0 465.8G 0 part

dinhngtu

@ovicz I'd start by listing the VDIs on your SR to see if things are still there.

ovicz

@dinhngtu xe sr-list
uuid ( RO) : 5956893e-7041-d424-a35e-6e7449238663
name-label ( RW): LocalISO
name-description ( RW):
host ( RO): xcp-ng-akz
type ( RO): iso
content-type ( RO): iso

uuid ( RO) : dccbfe9d-3e28-2163-2ea9-b0e972a42804
name-label ( RW): DVD drives
name-description ( RW): Physical DVD drives
host ( RO): xcp-ng-akz
type ( RO): udev
content-type ( RO): iso

uuid ( RO) : 8e908932-0577-d6f0-3133-14d94a317b90
name-label ( RW): LocalZFS
name-description ( RW):
host ( RO): xcp-ng-akz
type ( RO): zfs
content-type ( RO): user

uuid ( RO) : b37d8ad6-d9fa-203b-b057-a834908ae0e7
name-label ( RW): Removable storage
name-description ( RW):
host ( RO): xcp-ng-akz
type ( RO): udev
content-type ( RO): disk

uuid ( RO) : 34133934-0724-f9c1-3831-79cf54445fae
name-label ( RW): XCP-ng Tools
name-description ( RW): XCP-ng Tools ISOs
host ( RO): xcp-ng-akz
type ( RO): iso
content-type ( RO): iso!

Screenshot from 2025-12-17 11-42-47.png

dinhngtu

@ovicz How about xe vdi-list sr-uuid=8e908932-0577-d6f0-3133-14d94a317b90 ?

ovicz

@dinhngtu no ouput from that command.

dinhngtu

@ovicz Ok, I've contacted the storage team for a look.

ronan-a

@ovicz Can you share the /var/log/SMlog file from the master? It's quite strange considering that this driver is small and hasn't been modified.

stormi

@ovicz I'd also like to have a look at /var/log/daemon.log after a failed VM startup attempt.

acebmxer

i have applied updates to my 2 amd home lab hosts. Ryzen 7700x and 7950x amd x670e mobo's. No issues to report. Windows vm migrated between hosts no isssues. No issues with windows vm booting with uefi enabled prior to update.

ovicz

@ronan-a SMlog.txt
Attached. Please rename it as tgz and extract it as I couldn't uploaded as an archive file.

ovicz

@stormi daemon.txt

Attached. Please rename it as tgz and extract it as I couldn't uploaded as an archive file.

Screenshot from 2025-12-17 14-04-50.png

Strange thing the disks don't appear in xen orchestra but they are on the drive:

[14:04 xcp-ng-akz zfs]# ls -l
total 34863861
-rw-r--r-- 1 root root 393216 Dec 10 11:19 2b94bb8f-b44d-4c3d-9844-0b2c80e7d11c.qcow2
-rw-r--r-- 1 root root 16969367552 Dec 17 09:15 37c89d4e-93d0-4f47-a340-4add9fb91307.qcow2
-rw-r--r-- 1 root root 5435228160 Dec 16 18:41 67d7cb86-864b-4bfc-9ec6-f54dbb9c9f45.qcow2
-rw-r--r-- 1 root root 10212737024 Dec 17 09:37 740d3e10-ebc9-42a3-bc7c-849f6bcc0e61.qcow2
-rw-r--r-- 1 root root 2685730816 Dec 16 14:52 76dc4b94-ad88-4514-87ef-99357b93daaf.qcow2
-rw-r--r-- 1 root root 197408 Dec 10 11:19 8158436c-327a-4dcf-ba49-56e73006ed66.qcow2
-rw-r--r-- 1 root root 11897602048 Dec 17 10:09 e219112b-73b7-46a4-8fcb-4ee8810b3625.qcow2
-rw-r--r-- 1 root root 11566120960 Dec 10 09:51 f5d157cb-39df-482b-a39d-432a90d60e89.qcow2
-rw-r--r-- 1 root root 1984 Dec 10 11:02 filelog.txt

[14:07 xcp-ng-akz zfs]# zfs list
NAME USED AVAIL REFER MOUNTPOINT
ZFS_Pool 33.3G 416G 33.2G /mnt/zfs
[14:07 xcp-ng-akz zfs]# zpool list
NAME SIZE ALLOC FREE CKPOINT EXPANDSZ FRAG CAP DEDUP HEALTH ALTROOT
ZFS_Pool 464G 33.3G 431G - - 5% 7% 1.00x ONLINE -
[14:07 xcp-ng-akz zfs]# zpool status
pool: ZFS_Pool
state: ONLINE
config:

NAME        STATE     READ WRITE CKSUM
ZFS_Pool    ONLINE       0     0     0
  sda       ONLINE       0     0     0

errors: No known data errors

dthenot

@ovicz Hello,

From what I saw in your logs, you have a non QCOW2 sm version, it made the QCOW2 VDIs not available to the storage stack and the XAPI lost them.
If you update again while enabling the QCOW2 repo:

yum update --enablerepo=xcp-ng-testing,xcp-ng-candidates,xcp-ng-qcow2

A SR scan will make the VDI available to the XAPI. Though you will have to identify them and connect them to the VM manually, since this information was lost.

stormi

I added a warning to my initial announcement.

ovicz

@dthenot Screenshot from 2025-12-17 14-21-43.png

They appear now. I will try to identify them manually. Thanks for the tip.

olivierlambert

Thanks for your feedback