Re: Yuriy about NVMe over fabrics for oVirt
by Nir Soffer
On Thu, Nov 2, 2023 at 4:40 PM Yuriy <ykhokhlov(a)gmail.com> wrote:
> Hi Nir!
>
> This is Yuriy.
> We agreed to continue the subject via email.
>
So the options are:
1. Using Managed Block Storage (cinderlib) with a driver that supports
NVMe/TCP.
Lastest oVirt has the needed changes to configure this. Benny and I tested
with Lightbits[1] driver in a
virtualized environment. This is basically a POC that may work for you or
not, or require more work
that you will have to do yourself since not much development is happening
now in oVirt.
2. Using the devices via multipath
Legacy storage domains are based on multipath. It may be possible to use
multipath on top of
NVMe devices, and in this case they look like a normal LUN so you can
create a storage domain
from such devices.
oVirt will not handle connections for you, and all the devices must be
connected to all nodes at the
same time, just like FC/iSCSI LUNs. You will likely not get the performance
benefit of NVMe/TCP.
3. Using host devices
If what you need is using some devices (which happen to be connected via be
NVMe/TCP), maybe you
can attach them to a VM directly (using host devices). This gives the best
possible performance but no
features (snapshots, backup, live migration, live storage migration, etc.)
[1] https://www.lightbitslabs.com/
Nir
4 months, 1 week
Write To a Storage Domain
by Shafi Mohammed
Hi Guys ,
I am writing a tool to migrate VMs from KVM to Ovirt .
I created a storage domain and tried to expose it to NBD server to write
the data from the source Vm disk . But im facing a nbd permission issue .
Even a copy or write is restricted .
Actual Command
qemu-nbd -f qcow2 /rhev/data-center/mnt/192.168.108.27:
_storage/d62b04f8-973f-4168-9e69-1f334a4968b6/images/cd6b9fc4-ef8a-4f40-ac8d-f18d355223d0/d2a57e6f-029e-46cc-85f8-ce151d027dcb
*qemu-nbd: Failed to blk_new_open
'/rhev/data-center/mnt/192.168.108.27:_storage/d62b04f8-973f-4168-9e69-1f334a4968b6/images/cd6b9fc4-ef8a-4f40-ac8d-f18d355223d0/d2a57e6f-029e-46cc-85f8-ce151d027dcb':
Could not open
'/rhev/data-center/mnt/192.168.108.27:_storage/d62b04f8-973f-4168-9e69-1f334a4968b6/images/cd6b9fc4-ef8a-4f40-ac8d-f18d355223d0/d2a57e6f-029e-46cc-85f8-ce151d027dcb':
Permission denied *
Please suggest me if Ovirt has any API to open a disk from a
storage domain and write data to it
9 months
Can anyone help me to upload the img file into the ovirt 4.5
by Prabu Raj
Hi,
Please refer to the below details of my system and am not able to upload the image even cli and ui. both am getting same error.
The service are running fine.
Error :- RemoveImageTicketVDS failed: Image daemon is unsupported: ()
Linux OS :- OLE8.9
Ovirt :- 4.5
9 months, 2 weeks
Ovirt logos
by Cody Ault
Hello,
I'm trying to figure out who to contact to get permission to use the trademarked logos in our software. Veeam has a backup product for RHV, but we'd like to add official support for the upstream solution which would have the oVirt logos. We've reached out to Red Hat but haven't had luck in finding out who would be the best person to authorize this.
Thanks,
Cody Ault
9 months, 3 weeks
Bug 3156 - happy to fix
by Geoff O'Callaghan
Hi Dev Team
I'm happy to have a crack at Issue: /develop/release-management/features/integration/ovirtappliance.html · Issue #3156 · oVirt/ovirt-site (github.com)<https://github.com/oVirt/ovirt-site/issues/3156>
It seems to me that just a couple of extra lines that detail how you get the OVA from the zip file. Is that it or have I missed something?
Thanks
Geoff
9 months, 3 weeks
