@Forza
Thank you for your answer. If I take the "EPYC-path": Did you ever see, that a 2P-system is slower, than its 1P-pendant?
Best posts made by KPS
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RE: NUMA-impact - Xeon/Epyc - 1P vs 2P
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RE: USB Passthrough of licensing dongle
I am using USB-servers from SEH and Silex. Both of them are working.
Silex can provide higher Performance - SEH is IMHO nicer for license-dongels, etc.
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RE: Replication Backup failure
@sumansahabd
Its an LVM-repository. To replicate, you need a snapshot first. A snapshot needs at least 2x the size of the volume on the repository.Please check, if this is really the case. If you have a VHD which consumes 51% of the SR, you are not able to snapshot/replicate.
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RE: backup using http instead of https
@florent
Sorry, but next issue:
Backup size is always shown as 122 KiB although, there are 4GB saved to the remote.If I save to a storage without "many-files"-seting, 4 GiB is shown
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RE: backup using http instead of https
@florent
My problem seems to be, that NBD is not getting activated/tried:Dec 27 09:35:59 XOA xo-server[6477]: 2022-12-27T08:35:59.951Z xo:backups:DeltaBackupWriter INFO use nbd is NOT activated
...although:
- useNbd = true is set
- Backup-Remote is an SMB-share wir the setting "Store backup as multiple data blocks instead of a whole VHD file. (creates 500-1000 files per backed up TB but allows faster merge) "
- NBD-network is activated on one interface, XO and XCP-ng can work with
Is there any other dependency, that stops NBD from getting used?
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RE: XCP-ng logs in XOA - where to find
Just if somebody else is searching for the same thing, although it is not directly related to XOA:
If you want to get these alerts by mail and you are not using XCP-ng-Center, you can activate them with:
xe pool-param-set uuid=pool-uuid other-config:mail-destination=mail@example.com xe pool-param-set uuid=pool-uuid other-config:ssmtp-mailhub=mailserverip:port
KPS
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RE: CPU Usage Discrepency
That's quite interesting!
It makes sense, that the scheduler "rotates" the load over the cores, but it wonders me, that the "single-threaded-load" of the VM is not shown on the whole system.
Shouldn't one core be at least at 75%, if one core in the VM is at 75%?
Latest posts made by KPS
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RE: USB Passthrough of licensing dongle
I am using USB-servers from SEH and Silex. Both of them are working.
Silex can provide higher Performance - SEH is IMHO nicer for license-dongels, etc.
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XOA - Browse backups and filter by Remote
Hi!
I am trying to find out which backups are located on a specific remote.
Can you give me a hint on how to filter the results to see only backups of one remote, or to see at least the remote-name as colunn?Thank you for your help!
KPS -
RE: Rolling Pool Upgrade - Does not reboot hosts
@olivierlambert
There are lots of messages about:unable to parse XAPI datetime "2023-03-01T12:41:47.000Z"
But nothing about the upgrade process.
I was able to upgrade hosts 2+3 without any problem - but not automatically
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Rolling Pool Upgrade - Does not reboot hosts
Hi!
I did just start the RPU on a pool with 3 XCP-ng 8.2.1 hosts. XOA is running on 5.80, XCP-ng servers have been fully patched 2 weeks ago --> 14 patches missing.
The upgrade did start with the master (successful).
The second node did get evacuated, but did then wait with no more VMs on it with the sign: "Reboot to apply patches".Shouldn't this be done automatically?
The third host did not update at all. I had to restart patch and reboot.Thank you and best wishes
KPS -
RE: CPU Usage Discrepency
@olivierlambert
So, 75% of one core is 75% of one core, but the time-resolution of the graph and the rotation over the physical cores makes this "hidden"? -
RE: CPU Usage Discrepency
That's quite interesting!
It makes sense, that the scheduler "rotates" the load over the cores, but it wonders me, that the "single-threaded-load" of the VM is not shown on the whole system.
Shouldn't one core be at least at 75%, if one core in the VM is at 75%?
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Managing HA-cluster in case of dead master
Hi!
What is the best method to manage a cluster with XOA?
If I only add the IP of the master node, the whole cluster disappears, if the master fails, although HA did evaluate a new clusterr.
What is "best-practice"? Should I also add the other nodes, although they are showing up a "connection failed"?
Thank you for your help
KPS -
RE: VMware migration tool: we need your feedback!
Hi!
I did my first migration: Everything looks good!
The only thing, that should be noted:
You need to provide the VM-ID in your script. The ID that is shown through vSphere was not valid for your script. I had to login the the current ESXi-host and to get the ID with:vim-cmd vmsvc/getallvms | grep NAME
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RE: Orphaned VDI after backup - NBD issue
Hi!
I was able to isolate the issue: It does happen, if NBD is activated on one of the network interfaces!
xe network-param-remove param-name=purpose param-key=nbd uuid=xxxxxxxx
--> Disabling "useNBD" did not solve the issue. I had to disable the feature in XCP-ng
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Orphaned VDI after backup - NBD issue
Hi!
I am having a problem with my XOCE system on commit 317e4, xo-server 5.107.5 and XCP-ng 8.2.
After every run of a delta-backup, there is a VDI, that is attached to the control-domain of one of the XCP-ng-nodes. If I do not manually handle this throug reboot and forget, the snapshot-chain of the VM is getting longer and longer, until no backups are possible.
SMLog is only showing:
Jan 26 07:45:52 xenpool4host1 SM: [7714] ['/sbin/lvchange', '-an', '/dev/VG_XenStorage-9f4a43ca-f00e-f575-4897-9298235982d8/VHD-3c2f0bdc-093d-451b-b19e-7c099e354c13'] Jan 26 07:45:52 xenpool4host1 SM: [7714] lock: released /var/lock/sm/lvm-9f4a43ca-f00e-f575-4897-9298235982d8/3c2f0bdc-093d-451b-b19e-7c099e354c13 Jan 26 07:45:52 xenpool4host1 SMGC: [7714] Updated the vhd-parent field for child 3c2f0bdc-093d-451b-b19e-7c099e354c13 with d9022d81-2c9f-4f5f-8c7c-0d9e537fc14e Jan 26 07:45:53 xenpool4host1 SM: [7714] Refresh request for 3c2f0bdc-093d-451b-b19e-7c099e354c13 Jan 26 07:46:12 xenpool4host1 SM: [7714] Refresh request for 3c2f0bdc-093d-451b-b19e-7c099e354c13 Jan 26 07:46:35 xenpool4host1 SM: [7714] Refresh request for 3c2f0bdc-093d-451b-b19e-7c099e354c13 Jan 26 07:46:52 xenpool4host1 SM: [7714] Refresh request for 3c2f0bdc-093d-451b-b19e-7c099e354c13 Jan 26 07:47:08 xenpool4host1 SM: [7714] Refresh request for 3c2f0bdc-093d-451b-b19e-7c099e354c13 Jan 26 07:48:20 xenpool4host1 SM: [7714] Refresh request for 3c2f0bdc-093d-451b-b19e-7c099e354c13 Jan 26 07:48:38 xenpool4host1 SM: [7714] Refresh request for 3c2f0bdc-093d-451b-b19e-7c099e354c13 Jan 26 07:48:56 xenpool4host1 SM: [7714] Refresh request for 3c2f0bdc-093d-451b-b19e-7c099e354c13 Jan 26 07:49:30 xenpool4host1 SM: [7714] Refresh request for 3c2f0bdc-093d-451b-b19e-7c099e354c13 Jan 26 07:49:44 xenpool4host1 SM: [7714] Refresh request for 3c2f0bdc-093d-451b-b19e-7c099e354c13 Jan 26 07:50:01 xenpool4host1 SM: [7714] Refresh request for 3c2f0bdc-093d-451b-b19e-7c099e354c13 Jan 26 07:51:31 xenpool4host1 SM: [7714] Refresh request for 3c2f0bdc-093d-451b-b19e-7c099e354c13 Jan 26 07:52:16 xenpool4host1 SM: [7714] Refresh request for 3c2f0bdc-093d-451b-b19e-7c099e354c13
...every 30s.
Do you have any idea, why this happens and what I can do?
On XOCE, NBD is activated, but not used for that job.
Thank you and best wishes
KPS