Hey, since I'm running TrueNAS virtualized, I wanted to passthrough the SATA controller.

This led me to a journey of updating to 8.3, just so I could do it through xen orchestra, which I did. After I toggled the controller, the system restarted and all of a sudden xcp-ng didn't want to boot. It was stuck in the dracut emergency shell.

I had absolutely no idea why, until I realized the system itself is on a SATA SSD, and not an m.2 drive.

I had to manually change the grub config for it to be able to boot to the main config again, which was a bit stressful.

Anyways, my idea, just adding a little popup warning, or something similar that this could happen if users have xcp-ng installed on a SATA drive, just to prevent future headaches for homelabbers such as myself, but in reality, it could happen to anyone.

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Got it, thanks!
I'm certain many if not all enterprise users would be interested in such a feature.

@olivierlambert That's where my question comes in

Any plans on having these exposed for monitoring in Grafana?

@olivierlambert Could you confirm please if netdata provides such metrics? ^

@olivierlambert Just to confirm, I want to look at the size of daily backups created by Xen Orchestra, and the time/speed it took for them to complete, basically this page, but on a graph:

I'm not sure that is something netdata can offer?

Any plans on having these exposed for monitoring in Grafana?

I would really much like to see a graph which would correlate backup length, backup size, per VM, per Job, etc.

 cleanVm: incorrect backup size in metadata

    path
    "/xo-vm-backups/db8b6e5f-6e3a-e919-f5c1-d097f46eb259/20240321T000510Z.json"
    actual
    21861989376
    expected
    21861989888

I've been having this warning for 3~ months, on all my VMs.
At first the difference was just a few bytes (if those are bytes), but now the difference seems to be growing.

Running XO from the sources, updated multiple times during those 3 months, and also updated yesterday, same warning still occurred during last night's backup.

Any ideas how to get rid of this?

Hi,

I do not understand what this setting does.

To tailor the backup process to your specific needs and infrastructure, you can adjust the number of NBD connections per exported disk. This setting is accessible in the Advanced backup job section and allows for further customization to optimize performance according to your network conditions and backup requirements:

More connections = faster backup? What's the trade-off?

@olivierlambert I do.

I have also noticed something extremely weird.

I have 3 HDDs attached to one host.
2x2TB raid 1 (software raid done on the XCP-ng host)
1x4TB

lsblk shows:

... SNIP ...
sda                                                             8:0    0   1.8T  0 disk
├─sda2                                                          8:2    0   1.8T  0 part
└─sda1                                                          8:1    0     2G  0 part
...
sdb                                                             8:16   0   1.8T  0 disk
├─sdb2                                                          8:18   0   1.8T  0 part
└─sdb1                                                          8:17   0     2G  0 part
  └─md127                                                       9:127  0     2G  0 raid1
...
sde                                                             8:64   0   3.7T  0 disk
├─sde2                                                          8:66   0   3.7T  0 part
└─sde1                                                          8:65   0     2G  0 part
  └─md127                                                       9:127  0     2G  0 raid1

All 3 disks are passed through to a TrueNAS VM on the host, and all the data is properly stored, but I have no idea why mdadm shows that the 4TB disk is part of the raid, instead of the other one?

/dev/md127:
           Version : 1.2
     Creation Time : Sun Aug 27 14:32:08 2023
        Raid Level : raid1
        Array Size : 2094080 (2045.00 MiB 2144.34 MB)
     Used Dev Size : 2094080 (2045.00 MiB 2144.34 MB)
      Raid Devices : 2
     Total Devices : 2
       Persistence : Superblock is persistent

       Update Time : Sun Oct  8 12:07:28 2023
             State : clean
    Active Devices : 2
   Working Devices : 2
    Failed Devices : 0
     Spare Devices : 0

Consistency Policy : resync

              Name : november:swap0
              UUID : ae045fa0:74b00896:3134ede5:c837bec3
            Events : 27

    Number   Major   Minor   RaidDevice State
       0       8       65        0      active sync   /dev/sde1
       1       8       17        1      active sync   /dev/sdb1

Anyways, this doesn't seem to be the issue, since the other host which has no HDDs attached, only m.2 VM SR's, and it also took exactly 10 minutes for the toolstack to go up.

Now XO can't reach any of the hosts, even though all the VMs are up.