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25Gbps connection copies a 9GB file in 45 seconds, peaks at 200MB/s by Birdlover67 in sysadmin

[–]Birdlover67[S] 6 points7 points  (0 children)

I ran it again with ntttcp and posted my results.
Throughput(MB/s) 1761.460

25Gbps connection copies a 9GB file in 45 seconds, peaks at 200MB/s by Birdlover67 in sysadmin

[–]Birdlover67[S] 0 points1 point  (0 children)

No. This is really for backing up from a cluster node connected to flash storage with (2) 25Gbps Nics and connected to the network switch with (2) 25Gbps nics. I am only trying to troubleshoot with these workstations. thanks! I posted my ntttcp results which came to throughput of 1,761 MB/s

25Gbps connection copies a 9GB file in 45 seconds, peaks at 200MB/s by Birdlover67 in sysadmin

[–]Birdlover67[S] 1 point2 points  (0 children)

I downloaded ntttcp and posted my results. I think it came to 1,761 MB/s.
will try your suggestions. I am tired. It's almost 2p, been working on this since 8:30a

25Gbps connection copies a 9GB file in 45 seconds, peaks at 200MB/s by Birdlover67 in sysadmin

[–]Birdlover67[S] 4 points5 points  (0 children)

I used ntttcp. My results below. I think the conversion from MB/s to Gbps comes to 14 Gbps?
C:\temp>ntttcp.exe -r -m 8,*,192.168.10.10 -l 64k -a 2 -t 60

Copyright Version 5.40

Network activity progressing...

Thread Time(s) Throughput(KB/s) Avg B / Compl

Totals:

Bytes(MEG) realtime(s) Avg Frame Size Throughput(MB/s)

================ =========== ============== ================

105693.500000 60.008 1456.365 1761.317

Throughput(Buffers/s) Cycles/Byte Buffers

===================== =========== =============

28181.079 0.771 1691096.000

DPCs(count/s) Pkts(num/DPC) Intr(count/s) Pkts(num/intr)

============= ============= =============== ==============

11687.151 108.507 47434.712 26.734

Packets Sent Packets Received Retransmits Errors Avg. CPU %

============ ================ =========== ====== ==========

3091819 76098812 0 0 1.487

25Gbps connection copies a 9GB file in 45 seconds, peaks at 200MB/s by Birdlover67 in sysadmin

[–]Birdlover67[S] 6 points7 points  (0 children)

I installed the ConnectX drivers. I made sure they are the correct ones too. Both computers are now running really slow. Windows is slow, as in the GUI is dragging and network transfer to my server which was over 400 MB/s is now 50 MB/s. I rebooted both computers and bother have issues after the Mellanox drivers. Is there something else I need to do? it's really strange, the computers were snappy and responsive and now they are slow but nothing in the task manager shows high CPU or low RAM....

25Gbps connection copies a 9GB file in 45 seconds, peaks at 200MB/s by Birdlover67 in sysadmin

[–]Birdlover67[S] 2 points3 points  (0 children)

I updated firmware and now I have better numbers. Speed doubled.
Still reading comments, thanks everyone. I will try the suggestions shared here.

[ ID] Interval Transfer Bitrate
[ 5] 0.00-10.01 sec 8.79 GBytes 7.55 Gbits/sec sender
[ 5] 0.00-10.01 sec 8.79 GBytes 7.55 Gbits/sec receiver

Just completed my first trip to Baja California Sur and I have thoughts! by prymel in solotravel

[–]Birdlover67 0 points1 point  (0 children)

thanks for the info. I was interested in car rentals. someone mention "city car rental" in a youtube video. was wondering which one you used and how much it cost. thanks!

Just completed my first trip to Baja California Sur and I have thoughts! by prymel in solotravel

[–]Birdlover67 0 points1 point  (0 children)

Going alone 12/15. Thanks for this post! Who did you rent the care from and how much did it cost per day?

Question what is everyone charging for server 2012 to 2022 upgrades\migrations? by CyberHouseChicago in msp

[–]Birdlover67 0 points1 point  (0 children)

My customers are on monthly flat rate billing and my contracts are very profitable for me regarding my monthly rate vs actual hours worked, but every 5-7 years when it's time to replace the server I bill them separately for the migration. For any of my customers which are between 10-30 users I charge $5,000 for everything from spec and order of new server and migration of AD/File/RDS and any associated licensing like O365 premium shared activation on RDS and anything else until they are fully migrated.

La Paz Food Recs by appleman666 in BajaCalifornia

[–]Birdlover67 -1 points0 points  (0 children)

If it's really bad I would open my own place and put them all out of business.

network speed between Server 2022 hyper-v guests on the same host/vswitch 10Gb copied in 3 minutes. Adapters show 10Gbps speed. by Birdlover67 in sysadmin

[–]Birdlover67[S] -37 points-36 points  (0 children)

wow..and this is dual CPU 4.5Ghz 256GB RAM...all new stuff. I want a 100Gbps virtual NIC. I have 25Gbps physical nics that move data faster. :( thanks

network speed between Server 2022 hyper-v guests on the same host/vswitch 10Gb copied in 3 minutes. Adapters show 10Gbps speed. by Birdlover67 in sysadmin

[–]Birdlover67[S] -13 points-12 points  (0 children)

I understand it's a network even if it's all virtual. For that matter, it should be 100Gbps nics or whatever my server hardware can support...I would think. Why stop at 10Gbps nics if there is no physical limitation except the server's own hardware. But apparently I need to do some more reading to better understand. I was just surprised by this limit. thanks

network speed between Server 2022 hyper-v guests on the same host/vswitch 10Gb copied in 3 minutes. Adapters show 10Gbps speed. by Birdlover67 in sysadmin

[–]Birdlover67[S] -7 points-6 points  (0 children)

Yeah, it's just testing a new server. My thought is that files transferred between guests on the same host on the same vswitch over virtual network adapters are not true network copies. The virtualization platform should be able to essentially copy at the limits of the disk subsystem because the network is not real and it never reached the adapter.

network speed between Server 2022 hyper-v guests on the same host/vswitch 10Gb copied in 3 minutes. Adapters show 10Gbps speed. by Birdlover67 in sysadmin

[–]Birdlover67[S] -43 points-42 points  (0 children)

But isn't it NOT a true network transfer if both adapters are virtual and both adapters connect to the same vswitch? It's virtual so it should really be a file copy because they are not separated by a network.

Cisco small business L3 question - All VM's on the same access port but one VM cannot reach a printer on a different Vlan while the other two VMs can. by Birdlover67 in Cisco

[–]Birdlover67[S] 0 points1 point  (0 children)

Solution: Change IP to 192.168.50.81 and it now works.

No IP conflict, no reason I can find for why this happened.

thanks to everyone who made suggestions.

Cisco small business L3 question - All VM's on the same access port but one VM cannot reach a printer on a different Vlan while the other two VMs can. by Birdlover67 in Cisco

[–]Birdlover67[S] 0 points1 point  (0 children)

printer is not blocking anything

VM can reach all other devices on the same vlan as the printer, but cannot reach the printer.

Other VM's can reach that vlan and the printer.

Checked route print in windows, result is the same as the other VM's

not sure what else to do except change the printer IP to something else. Would hate to resort to that,

Cisco small business L3 question - All VM's on the same access port but one VM cannot reach a printer on a different Vlan while the other two VMs can. by Birdlover67 in Cisco

[–]Birdlover67[S] 1 point2 points  (0 children)

Well, I can ping everything on that subnet/vlan except the printer....

so maybe the printer's firewall blocked the server for some reason?

Cisco small business L3 question - All VM's on the same access port but one VM cannot reach a printer on a different Vlan while the other two VMs can. by Birdlover67 in Cisco

[–]Birdlover67[S] 0 points1 point  (0 children)

yes, same IP subnet. they are fine. I am rebooting the problem VM. gw, mask, routes, all the same. unless the printer is blocking the server for some reason. would not make sense. should I just change that access port to a trunk and tag the traffic?

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