Restart the toolstack on each server.

You should be able to delete the snapshots without causing any harm. A couple of things to keep in mind --

• If the snapshot is associated with an existing backup job, then the next run of that job will result in a full backup instead of a delta

• It may take some time for the snapshots to coalesce following deletion, so this could still affect your backups until they are completely removed

• If you want to delete the backups associated with the old job, then you can from the Backup > Health tab in XO

It is also possible to perform this activity from within XO as described here. There are some prerequisites for performing this action that you should review -- https://docs.xcp-ng.org/installation/requirements/#-pool-requirements

I would setup a Continuous Replication backup job to create a duplicate VM on the new storage repository. When you are ready to perform the cutover, shutdown the original VM, perform one final run of the CR job, and then start the new VM on the new pool.

Interesting read that mentions xcp-ng!

https://www.theregister.com/2022/09/30/citrix_xen/

Yes, it's technically possible, as long as the underlying hardware is compatible. For example, you can't put a server using AMD processors into a pool with Intel processors.

The server being moved into the existing pool will lose its local storage and all VMs stored there, so you will need to migrate those VMs to the main pool before the server is merged. Afterwards, you can move them back if desired.

@JoyceBabu They are now available at https://www.xenserver.com/downloads

@BrianDLC The error ""EACCES: permission denied" should have pointed you to a permissions error to begin with.

Since we have no knowledge of how that script operates, it often makes more sense to refer you to their repo for help rather than us guessing at the reason for the issue.

@Ascar I suspect that Olivier means to register with the XO instance using this syntax --

xo-cli register [--allowUnauthorized] [--expiresIn <duration>] [--otp <otp>] <XO-Server URL> <username> [<password>]

You can run xo-cli without any parameters to get the full usage text.

Click the person icon below the Sign Out option to access the settings for the currently logged in user.

@ph7 This is being investigated by the XOA team. We will update this thread when more information is available.

Could be a routing issue. Have you checked to make sure that your switch is working?

What do these commands return when run from your XOA VM?

rpcinfo -p <IP address of NFS device>
nmap <IP address of NFS device>
showmount -e <IP address of NFS device>

@scboley We do not offer per-incident support. See https://vates.tech/pricing-and-support/ for information on our current support offerings.

@scboley For now, I recommend sticking with XCP-ng 8.2.1 when using XOSTOR. You can also start a free trial of XOA at xen-orchestra.com and then use that to deploy a trial of XOSTOR.

@irtaza9 I assume that you are running XO from the sources. Is your VM up-to-date with the latest sources?

Are you sure a template with that UUID exists for the target pool? What does the following command return?

xo-cli --list-objects type=VM-template uuid=f6745939-cc54-fa9c-5169-6f14ba830a6a

@irtaza9 Have you tried it with the body formatted like this?

{
	"boot": true,
	"memory": 2147483648,
	"name_label": "testingVM" ,
	"template": "f6745939-cc54-fa9c-5169-6f14ba830a6a" ,
	"auto_poweron": true
}

The VDI is likely corrupt. I suggest deleting it since it's associated with a DR backup.

@McHenry said in VDIs failing to coalesce:

Jan 2 07:22:29 svr10533 SMGC: [2484036] *** UNDO LEAF-COALESCE
Jan 2 07:22:29 svr10533 SM: [2484036] ['/usr/bin/vhd-util', 'set', '--debug', '-n', '/var/run/sr-mount/eb9076c3-13a5-f9a7-43e3-ff1146e5599d/2f032201-4355-4407-bf1c-91320e942cfe.vhd', '-f', 'hidden', '-v', '1']
Jan 2 07:22:29 svr10533 SM: [2484036] FAILED in util.pread: (rc 22) stdout: '', stderr: ''

Have you checked to see which VDI this UUID (2f032201-4355-4407-bf1c-91320e942cfe) represents?

Hi @ph7,

Can you post the full error from the backup log? Also, are you running XCP-ng 8.2 or 8.3?

Dan

Hi @techknowbabble

Can you show us the contents of /boot/efi/EFI/xenserver/grub.cfg?

Regards, Dan