hello Andrija,
I have just set up a Xenserver 7.6 cluster, but I think that the license
problem will be a brake!
- Does Cloudstack work optimally with XCP-NG?
- If YES until which version?
- Will XCP-NG be compatible with the future Cloudstack 4.14?
Cheers,
Olivier
Le 24/04/2020 à 08:59, Andrija Panic a écrit :
Not necessarily - i.e. you should still observe multiple hundredns of
megabits/sec with default VR offering, with the routing process.
I would pay attention to the network throttling set on XS side, as Vivek
has already suggested in another email.
On Fri, 24 Apr 2020 at 13:51, Olivier GUIN <[email protected]> wrote:
Hi Andrija,
You wrote that there would be my CPU / RAM ratio which would cause the
throttled on my interface.
What would be the right CPU / RAM ratio?
If you have a recommendation.
I think my problem comes from there ..
I made a VM with 4GB RAM and 4 vCPU at 2Ghz and it works very well!
(Linux/Windows)
Cheers,
Olivier
Le 23/04/2020 à 17:33, Andrija Panic a écrit :
(mon français n'est pas si bon) - but if that is a physical server - than
it's a valid test - beside the traffic will go through the VR (from VM
via
VR to that external host) - here you have NAT over relatively slow VR
(CPU/RAM) and over the throttled interface most probably.
In general, you should not keep mixed XS versions (whatever is true for
XenServer alone, irrelevant of the CloudStack), as 7.x is a big
difference
to 6.5 and i.e. VM live migrations will not work (and I'm sure many other
things, possibly)
That being said, make sure to TEST the upgrade (pool master, then slaves,
then see how to reconnect hosts to ACS, etc, etc) - if this is your test
env - better start from scratch.
7.1 LTSR is recommended over 7.0 any day.
Cheers
Andrija
On Thu, 23 Apr 2020 at 22:22, Olivier GUIN <[email protected]>
wrote:
Hi Andrija,
Thank for your anwser ...
1) My Cloudstack is 4.13
2) Can I mix a version of xen 6.5 and xen 7 in the same cluster? (I
think
I cannot move a VM from one cluster to another)
3) 200.13.xxx.xxx est un de mes serveurs sur mon réseau physique
I think the problem comes from my service offerings
I keep looking ...
But I think upgrading my Xen servers from 6.5 to 7 is a good idea.
Point 2 is important !
Regards,
Olivier
Le 23/04/2020 à 16:02, Andrija Panic a écrit :
Hi Olivier,
Upgrade to 4.13 should not be a problem here. I would suggest:
- checking traffic shaping on XenServer side - to confirm what is/is not
in place (we don't know your network offerings/compute offerings network
rates and such)
- Confirm VM/drivers used inside VMs are all up to date (6.5 is an
ancient
thing, not supported any more in ACS 4.14 that will be out soon)
You are doing: iperf3 -c 200.13.XXX.XXX -p5001
Why are you connecting to the IP of the VR? What kind of testing is this
supposed to be/show what?
Why not starting iperf server on Centos 7 and connect to it from Windows
2012 (and the other way around)?
This traffic is NOT going over the virtual router, but just via the same
"network" on XS.
I'll try ok
Alternatively, you can deploy VPC (multiple isolated networks behind a
VR)
- and have VM1 in network1, VM2 in network2 - and do iperf between them
(traffic router via VR) - here keep in mind even if your VM's NIC are
1Gbps, but your VR NICs are 100 Mbps, you will be limited to the slowest
nic in the whole path/chain - 100 Mbps.
OK
Regards,
Andrija
-
On Thu, 23 Apr 2020 at 20:34, Olivier Guin <[email protected]>
wrote:
Hello,
Some news :
from VM to SRV :
[root@centos7 centos]# iperf3 -c 200.13.XXX.XXX -p5001
Connecting to host 200.13.XXX.XXX, port 5001
[ 4] local 10.0.1.42 port 56190 connected to 200.13.XXX.XXX port 5001
[ ID] Interval Transfer Bandwidth Retr Cwnd
[ 4] 0.00-1.00 sec 12.9 MBytes 108 Mbits/sec 77 55.1 KBytes
[ 4] 1.00-2.00 sec 11.9 MBytes 100 Mbits/sec 51 45.2 KBytes
[ 4] 2.00-3.00 sec 9.96 MBytes 83.6 Mbits/sec 36 28.3 KBytes
[ 4] 3.00-4.00 sec 9.37 MBytes 78.6 Mbits/sec 33 25.5 KBytes
[ 4] 4.00-5.00 sec 11.1 MBytes 93.5 Mbits/sec 24 50.9 KBytes
[ 4] 5.00-6.00 sec 11.2 MBytes 94.2 Mbits/sec 24 82.0 KBytes
[ 4] 6.00-7.07 sec 12.9 MBytes 101 Mbits/sec 38 143 KBytes
[ 4] 7.07-8.07 sec 9.03 MBytes 75.2 Mbits/sec 13 123 KBytes
[ 4] 8.07-9.00 sec 12.5 MBytes 113 Mbits/sec 24 103 KBytes
[ 4] 9.00-10.06 sec 13.6 MBytes 107 Mbits/sec 98 140 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bandwidth Retr
[ 4] 0.00-10.06 sec 114 MBytes 95.4 Mbits/sec 418
sender
[ 4] 0.00-10.06 sec 114 MBytes 95.4 Mbits/sec
receiver
from SRV to VM :
[root@centos7 centos]# iperf3 -s -p 5001
-----------------------------------------------------------
Server listening on 5001
-----------------------------------------------------------
Accepted connection from 200.13.XXX.XXX, port 48782
[ 5] local 10.0.1.42 port 5001 connected to 200.13.XXX.XXX port 48784
[ ID] Interval Transfer Bandwidth
[ 5] 0.00-1.00 sec 7.95 MBytes 66.7 Mbits/sec
[ 5] 1.00-2.00 sec 10.6 MBytes 88.7 Mbits/sec
[ 5] 2.00-3.00 sec 0.00 Bytes 0.00 bits/sec
[ 5] 3.00-4.00 sec 0.00 Bytes 0.00 bits/sec
[ 5] 4.00-5.00 sec 0.00 Bytes 0.00 bits/sec
[ 5] 5.00-6.00 sec 0.00 Bytes 0.00 bits/sec
[ 5] 6.00-7.00 sec 0.00 Bytes 0.00 bits/sec
[ 5] 7.00-8.00 sec 0.00 Bytes 0.00 bits/sec
[ 5] 8.00-9.00 sec 0.00 Bytes 0.00 bits/sec
[ 5] 9.00-10.00 sec 0.00 Bytes 0.00 bits/sec
[ 5] 10.00-11.00 sec 0.00 Bytes 0.00 bits/sec
[ 5] 11.00-11.52 sec 0.00 Bytes 0.00 bits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bandwidth
[ 5] 0.00-11.52 sec 0.00 Bytes 0.00 bits/sec
sender
[ 5] 0.00-11.52 sec 18.5 MBytes 13.5 Mbits/sec
receiver
Regards,
Olivier
--
Andrija Panić
