How to set Disk profile via REST API?
by ovirt.org＠nevim.eu
Hi,
I have ovirt version: 4.3.4.3-1.el7 I can't find in the documentation how to set up a server disk profile during creation via the REST API. If it didn't work during creation, then it doesn't matter later after creation.
How to please set up a disk profile server via REST API?
Thank you.
3 years, 4 months
Moving backing datastores from NFS to iSCSI
by David Johnson
Hello braintrust,
My ovirt cluster is prone to hanging when it is put under a high IO load.
In an earlier thread, someone determined that this is consistent across
architectures and infrastructures when NFS is used for the backing
datastore for the cluster.
I was able to see a huge improvement by switching putting an nVME drive in
as the intent log cache on the NAS. But, alas, that appears to have only
put off the reckoning, and the cluster locked up again when I doubled the
IO workload.
Prior email chains to this list have established that the hang occurs
because "something" in qemu throws the VM into PAUSE state instead of
IOWAIT state when under load. Other emails I have viewed seem to point at
NFS as the root cause, so a "least cost" suggestion is to migrate from NFS
to iSCSI as backing storage.
Is there an existing procedure for migrating Ovirt VM storage from NFS to
iSCSI?
Current architecture:
Ovirt engine 4.4.4.7-1.el8 on centos 8.x, on bare metal intel desktop
2 hosts 4.4.4.7-1.el8 on centos 8.x
TrueNAS Core 2020, with shares exposed as NFS
10 GBit dedicated storage Network
Thanks,
*David Johnson*
3 years, 4 months
oVirt 3 Node with GlusterFS
by Joseph Goldman
Hi list,
Building a new kit for a client, 3x servers each with a 5 disk RAID 5
10k SPIN and a 3 drive RAID 5 SSD
I am thinking of doing a straight replica 3 GlusterFS, 1 for spin and 1
for SSD so
a) all servers have technically local access to disks
b) any server can die without much impact beyond awaiting migrate
Is just a replica 3 best option for space + performance in a VM
environment?
Is there any specific tricks or traps I should look out for building
such an environment? Any recommendations on why this is a good OR BAD
idea?
Thanks,
Joe
3 years, 4 months
Downloads failing
by Gary Pedretty
Any idea when the download repositories will be fixed. Seems like none of the mirrors are working so we cannot do new installs of Ovirt
Error: Error downloading packages:
Cannot download x86_64/ovirt-imageio-daemon-2.3.0-1.el8.x86_64.rpm: All mirrors were tried
This has been happening since Monday.
Thanks
Gary
_______________________________
Gary Pedretty
Director of IT
Ravn Alaska
Office: 907-266-8451
Mobile: 907-388-2247
Email: gary.pedretty(a)ravnalaska.com
"We call Alaska......Home!"
Ravn Alaska
CONFIDENTIALITY NOTICE:
The information in this email may be confidential and/or privileged. This email is intended to be reviewed by only the individual or organization named above. If you are not the intended recipient or an authorized representative of the intended recipient, you are hereby notified that any review, dissemination, forwarding or copying of the email and its attachments, if any, or the information contained herein is prohibited. If you have received this email in error, please immediately notify the sender by return email and delete this email from your system. Thank you.
3 years, 4 months
