Re: Virtual Server Performance Issue

Hi Julian,

Please check this Vmware KB.
http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2006277

HTH.

Marcelo Pinheiro

2012/4/16 Radioactive Frog <pbhatkoti_at_gmail.com>

> You need to define this more close to the issue.
> I'd check :
> a) actually isssue - read/write,
> b) IOPS on disk/LUN that is attached to your VS.
> c) copy file using some other method (MS copy or ftp might be issue
> sometime) if they are using firewall.
> d) copy file from the same VS server to same vs server (it will test the
> IOPS), compare it with the network file copy.
> e) depneds what OS u are using on VS , grab some sniffer logs and check for
> the TCP performance.
> f) Network retransmission - jumbo frame queueing.
>
> Ask performance report from cloud provider for the VS.
>
>
> On Mon, Apr 16, 2012 at 5:57 PM, Julian Ko <julian13901_at_gmail.com> wrote:
>
> > Hello, Group
> >
> > This is not only network related issues, but VMWare(Virtual Server
> Issues).
> > If anyone can give me any related comments, I'll be really appreciated.
> >
> > Well, recently I have been complained about Virtual Server performance
> > issues. Users were complaining about slowness such as when they copying
> > files on virtual servers on VMWare. I tries to clear out there are no
> > network related issues, which affect on virtual server environment. But
> > one thing that came to my mind is this issue is related with VMWare
> > setting.
> >
> > Currently, there are multiple virtual servers on VMWare base, which is
> > installed in one physical server. The physical server and network switch
> is
> > connected to two ports(Port Channel). So, what I'm thinking is that if
> > multiple virtual servers access to the same network segment, if a certain
> > virtual server occupies this limitted network resource, it may affect
> other
> > virtual servers network performance.
> >
> > Well, if this is the case, or if anyone had similar issues, please feel
> > free to give me comments or advice.
> >
> > Thanks in advance and regards,
> > Julian
> >
> >
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Received on Mon Apr 16 2012 - 18:32:21 ART