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From Pankaj Singh <pank.sin9...@gmail.com>
Subject RE: Network performance issue
Date Sat, 04 Apr 2015 13:48:50 GMT
Yes, with few more tuning of FreeNAS we are able to achieve quite
comparable performance as compared to our xenserver VM.

Thanks & Regards
PankaJ Singh
On Apr 4, 2015 1:22 PM, "Sonali Jadhav" <sonali@servercentralen.se> wrote:

> Awesome, that helped me too. Weird I have other few hypervisors using zfs
> storage they never had problem with sync enabled. I had bond configured for
> secondary storage traffic, but still speed was super slow. I even thought
> that SCVMM low config would be issue, but it wasn't.
>
> Thanks :)
>
> /Sonali
>
> -----Original Message-----
> From: Sam Ceylani [mailto:sam@mistercertified.com]
> Sent: Friday, April 3, 2015 2:59 AM
> To: <users@cloudstack.apache.org>
> Subject: Re: Network performance issue
>
> np glad it worked,ty
>
>
> Thanks,
>
> Sam Ceylani, MBA
> Computer Engineer
> MisterCertified Inc.
>
> 301 W. Platt St. Suite 447, Tampa, FL 33606<x-apple-data-detectors://0/0>
> P 813<tel:813.264.6460>.264.6460<tel:813.264.6460> M
> 813<tel:813.416.7867>.416.7867<tel:813.416.7867>
> F 800<tel:800.553.9520>.553.9520<tel:800.553.9520> E
> sam.ceylani@mistercertified.com<mailto:sam.ceylani@mistercertified.com>
>
> On Apr 2, 2015, at 5:06 PM, "Pankaj Singh" <pank.sin9191@gmail.com<mailto:
> pank.sin9191@gmail.com>> wrote:
>
> Thanks Sam,
> Its a great help. Now we can able to achieve 50 to 60 MB/s transferring
> speed.
>
> Thanks & Regards,
> PankaJ Singh
>
> On Thu, Apr 2, 2015 at 10:49 PM, Sam Ceylani <sam@mistercertified.com
> <mailto:sam@mistercertified.com>>
> wrote:
>
> We use Freenas with ZFS also and it is notorious with NFS shares, we
> created a dataset and shared on NFS and disabled sync option for this
> dataset from ZFS, I forgot the command but it was something like zfs set
> sync=disabled /tank/dataset something like that, it will fix it. This has
> really nothing to do with cloudstack and xenserver which we use both...
>
>
> Thanks,
>
> Sam Ceylani, MBA
> Computer Engineer
> MisterCertified Inc.
>
> 301 W. Platt St. Suite 447, Tampa, FL 33606<x-apple-data-detectors://0/0>
> P 813<tel:813.264.6460>.264.6460<tel:813.264.6460> M
> 813<tel:813.416.7867>.416.7867<tel:813.416.7867>
> F 800<tel:800.553.9520>.553.9520<tel:800.553.9520> E
> sam.ceylani@mistercertified.com<mailto:sam.ceylani@mistercertified.com
> ><mailto:sam.ceylani@mistercertified.com>
>
> On Apr 2, 2015, at 1:13 PM, "Pankaj Singh" <pank.sin9191@gmail.com<mailto:
> pank.sin9191@gmail.com><mailto:
> pank.sin9191@gmail.com<mailto:pank.sin9191@gmail.com>>> wrote:
>
> Still no luck by disabling these flags.
> Would you please help us for this.
>
> Thanks & Regards,
> PankaJ Singh
>
>
> On Thu, Apr 2, 2015 at 8:06 PM, Jeronimo Garcia <garciaj.uk@gmail.com
> <mailto:garciaj.uk@gmail.com>
> <mailto:garciaj.uk@gmail.com>>
> wrote:
>
> mmmmmm i had this problem before ....
> i think it was TCP offliading or RX/TX checksumming.
> I'd say play with ethtool and see if it makes any difference disabling
> this flags (or enabling them) Im on #cloudstack@freenode if you want to
> pop in.
>
> Thanks
>
> On Thu, Apr 2, 2015 at 3:12 PM, Pankaj Singh <pank.sin9191@gmail.com
> <mailto:pank.sin9191@gmail.com>
> <mailto:pank.sin9191@gmail.com>>
> wrote:
>
> We have two different network on two similar switches. One is our
> 192.168.1.0/24 and other is 192.168.2.0/24 network.
> Our switch capacity is 1000Mbps and so does our NIC cards on Host machines.
>
> On n/w 192.168.1.0/24, we are using xenserver 6.2 to deploy our Virtual
> machines and we can able to achieve persistent 75 to 80 MB/s speed while
> transferring (via scp) one 12GiB file from one VM to another VM on same
> Xenserver.
>
> We are using 192.168.2.0/24 network for our cloudstack setup.
> We have used following software with their version to establish out private
> cloud:
>
>
> Cloudstack = v4.4.2
> Management Server On = Centos 6.4 x86_64 bit Xenserver as a hypervisor =
> v6.2 (similar configuration of machine as we have used in 192.168.1.0/24
> n/w) FreeNAS as a Primary and Secondary Storage via NFS = v9.3 (filesystem
> is ZFS  based) Virtual Machine OS = Centos 6.5 x86_64 bit
>
> We are using basic networking with its all default configurations but we
> are not able to achieve at least 60 to 65 MB/s of transferring speed.
>
> In cloud If we start scp from one machine to another machine then our
> transferring speed starts from 63 MB/s and then its keep falling till 20 to
> 25 MB/s.
>
> Would you please tell us that what we are missing here. Is ther any kind
> of global setting we need to configure so that at least we can achieve more
> than 50 MB/s transferring speed between two guest VM.
>
>
> Thanks and Regards
> PankaJ Singh
>
>
>
>

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