Are you really saturating you GigE link with only 5-10 users. It sounds like you may be running out of IOs, SQL is usually a very write intensive workload.
Junaid Shahid <shahid.jun...@gmail.com> wrote: Thanks Todd! Well I think the service offering is at 200Mbps.. Also I we are not using any link aggregation at all. Let me float these ideas to my team. Thanks for your feedback! On Wed, Nov 13, 2013 at 5:36 PM, Todd Pigram <t...@toddpigram.com> wrote: > Junaid, > > what did you set the the network rate to in the exchange service offering? > Depending on your backend network setup for that offering you may get > better results with setting it to a '0' for unlimited. On my internal CCP, > our SQL servers service offering has network rate to '0' as I am using a 4 > NIC LACP bond. > > just food for thought > > Todd > > > On Wed, Nov 13, 2013 at 6:37 AM, Junaid Shahid <shahid.jun...@gmail.com > >wrote: > > > Hi all, > > We are running a mixture of Windows and Linux VMs under different > accounts > > on our cloud, that is based on CloudPlatform 3 (I know that it's a > mailing > > list for ACS, but I still need your feedback so read on please :)). > > > > The Primary storage is based on iSCSI with GigE link, and Xen hyperviser. > > > > Now the problem is that whenever we run Windows OSes with applications > like > > Exchange, Sharepoint and particularly MS Lync (that includes AD and MSSQL > > as pre-requisites..), the GigE link to Primary Storage becomes so > congested > > that it affects the whole cloud environment. Nothing remains usable > > anymore, the performance of Linux VMs also is affected in the process. > > > > So what does your experience say, what should we do: > > 1) Segregate the Windows VMs to their own cluster and their own separate > > Primary storage. > > 2) Use local storage for the "pre-cloud era" traditional Windows > workloads > > such as MS Exchange etc. > > 3) Is cloud environment feasible at all for Hosted Exchange and the > like, > > as Local storage that runs on the speed of the motherboard back-plane, of > > course cannot be matched by a GigE link alone. > > > > Awaiting your valuable feedback all :) > > > > -- > > Regards, > > Junaid Shahid, > > TODO:______ > > > -- Regards, Junaid Shahid, TODO:______
