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OVH vrack experience
| Posted by Russ86, 10-27-2016, 07:37 AM |
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Hi guys,
Anyone can share your experience with OVH VRACK technology. I am interested mostly in speeds on that interface. OVH is claiming on their web site it is 10 Gbps. We have ordered 10+1 server from them. 10 servers showing almost 10 Gbps performance between servers, but 1 server showing slow upload speed!
Any of you are using vrack and could share the results, OVH support is claiming, that upload speed is cut on 5 Gbps. However between those 10 servers this is never the case and it's ~10 Gbps both ways. What is your experience?
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| Posted by mgbhard, 10-27-2016, 10:28 AM |
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Storage servers have guaranteed 10 Gbps, "host" line servers 3 Gbps, most of the time we can use 5 to 10 on all of them.
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| Posted by Russ86, 10-27-2016, 10:44 AM |
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Just received information from support!
Seems, saying 10 Gbps VRACK means totally nothing! It is totally best effort and nothing guaranteed at all! The only guaranteed traffic is OVH/Internet, in my case it is 250 Mbps.
"
Hello,
My apologies. Your server has in fact 250Mbps of guaranteed OVH/Internet Bandwidth. However, the OVH to OVH bandwidth is in fact best effort.
....
"
That means that if you buy 40 Gbps network, you might not go close to that! If we bought servers to have 10 Gbps, we might bot get even 1 Gbps and so on! I am feeling fooled by OVH!
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| Posted by Mike_A, 10-27-2016, 11:00 AM |
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What type of disk configuration do you have that'll actually let you push 10Gbit to a server?
I don't have any of those "vRack 10Gbps" Host servers but I'm almost always able to push full gigabit (110MB/s) across the internal datacenter networks to store backups and transfer client data to other systems.
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| Posted by Russ86, 10-27-2016, 11:15 AM |
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We are using iperf to check network speed. Not sure about disks, but current disks in RAID5, allows to reach ~450 MB/s. I think iperf does not using disks for test. We can also use RAM disks!
Interesting information provided by @mgbhard . Why this information hidden from web page! We actually have choosen OVH based on information provided on the official web page, sorted servers, selecting VRACK 10 Gbps and hoping that it is right! We made tests and it was! So we started buying other servers! And now we are really dissapointed! And now support is saying and that actually it is not quaranteed at all! However I would say it is exactly as @mgbhard stated for that one server!
So from that experience it would be hard to believe in what OVH is writing on their webpages, because it might be not exactly what they mean.
i.e. if thet writing 10 Gbps bandwidth, that might mean only 10 Gbps port! Or if they write VRACK is "Cisco ASR 9000, that should route the data without passing through the public network" In reality limit would be public network, that is what OVH support is telling us...
And now support is saying it is error that you get 10 Gbps, we need to limit it to 5 Gbps. It does not sound professional and respective! It is not for what we have paid!
Last edited by Russ86; 10-27-2016 at 11:18 AM.
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| Posted by mgbhard, 10-27-2016, 11:19 AM |
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They do announce it on their website:
Edit: if you don't have any info on that server just ask them to credit you for the time left and buy a new server wich hopefully will be in a rack with more free bw.
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| Posted by Russ86, 10-27-2016, 11:31 AM |
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Thank you @mgbhard for explanation, that clarifies everything! Maybe we just need to buy other line servers!
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| Posted by Russ86, 10-27-2016, 05:47 PM |
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If anyone will come to same topic, I have now found guaranteed bandwidth comparisment table for different servers.
https://www.ovh.com/us/dedicated-ser...-bandwidth.xml
So guaranteed bandwidth would be 10 Gbps, only on below models in each product range:
Infrastructure range: EG-128
Storage range: FS-48T, FS-72T, FS MAX (40 Gbps)
All models from Big Data range
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