You found the issue!
VirtIOSCSI can only do its magic, when it's actually used. And once the boot
disks was running using AHCI emulation it's a little hard to make it
"re-attach" to SCSI.
I am pretty sure it could be done, like you could make Windows disks switch
from IDE to SATA/AHCI with a b
The storage domain lists the type as "Local on Host". It's been a while since I
set it up, but I thought the engine deployment had an option for local storage.
The VM's reside in a directory under /opt on the Physical Host.
https://i.postimg.cc/z3mMNj3J/Capture.png
I forget which version I act
On Tue, Aug 3, 2021 at 3:18 PM wrote:
> Yes - local as in 5400 RPM SATA - standard desktop, slow storage.. :)
>
> It's still 'slow' being 5400 RPM SATA, but after setting the new VM to
> 'VirtIO-SCSI' and loading the driver, the performance is 'as expected'. I
> don't notice with with the Linux V
On Tue, Aug 3, 2021 at 12:24 PM Tony Pearce wrote:
> I believe "local" in this context is using the local ovirt Host OS disk as
> VM storage ie "local storage". The disk info mentioned "WDC WD40EZRZ-00G" =
> a single 4TB disk, at 5400RPM.
>
> OP the seek time on that disk will be high. How many V
When I did the VM this time, I did pre-allocate all of the space. The first
time, I was just curious if Windows would even run ok under oVirt and it does
appear it will.
Next.. I need to get a couple Solaris VMs actually working. I've seen some
'hacks' out there that others have reported succe
Yes - local as in 5400 RPM SATA - standard desktop, slow storage.. :)
It's still 'slow' being 5400 RPM SATA, but after setting the new VM to
'VirtIO-SCSI' and loading the driver, the performance is 'as expected'. I don't
notice with with the Linux VMs because they don't do anything that requires
I believe "local" in this context is using the local ovirt Host OS disk as
VM storage ie "local storage". The disk info mentioned "WDC WD40EZRZ-00G" =
a single 4TB disk, at 5400RPM.
OP the seek time on that disk will be high. How many VMs are running off
it?
Are you able to try other storage? If
On Fri, Jul 30, 2021 at 5:17 PM wrote:
> This is a simple one desktop setup I use at home for being a nerd :)
>
> So it's a single host 'cluster' using local storage.
>
Sorry for the late reply.
Define: local.
NFS, Gluster or ISCSI?
- Gilboa
>
> Host Info:
> CentOS Linux 8 - 4.18.0-305.10.2.e
You should also know that preallocated disks are about 20-30% faster than thin
disks in read/write speed (this is according to my measurements with caching
turned off)
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Re-installation using the 'VirtIO-SCSI' interface along with the appropriate
driver installs took care of the issue! It's still a little bit slow - but what
I would expect for a 5400 RPM drive :)
The performance had improved greatly!
Thanks for the suggestions!
_
On Fri, Jul 30, 2021 at 4:17 PM wrote:
>
> I think I'll deploy a new Windows guest and try the 'VirtIO-SCSI'
> interface and see if my performance is any better. It's just a default
> install of Windows at this point, so that'll be easy. :)
>
>
>
I think it should work also this way:
. hot add a
This is a simple one desktop setup I use at home for being a nerd :)
So it's a single host 'cluster' using local storage.
Host Info:
CentOS Linux 8 - 4.18.0-305.10.2.el8_4.x86_64 (I keep fairly well updated)
Intel(R) Core(TM) i5-7500 CPU @ 3.40GHz [Kaby Lake] {Skylake}, 14nm
The disk it's on is:
On Wed, Jul 28, 2021 at 2:51 PM wrote:
> I recently installed a Windows 10 VM under oVirt 4.4.5.11-1.el8
>
> Also installed the drivers using "virtio-win-1.9.16.iso" (Then
> re-installed them after updates just in case it helped)
>
> I found a similar complaint with VMWare (
> https://communities
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