I vaguely remember that work Paul – but I’m amazed you’ve got all those figures in your head still!
I think Sezai might be able to attest to any general issues using a well set up SQL/SharePoint/SAN infrastructure. If funds allow, my experience has been that a well configured vmware solution is preferable given all the manageability benefits, with few issues arising. Mike MOSSuMS From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Wednesday, 6 February 2008 2:50 PM To: [email protected] Subject: Re: [SPAM] RE: [OzMOSS] MOSS & V-Motio (put my CIsco hat on for a sec).. In terms of IO and bottlenecks I did some work on this a few years back when we contractually had to guarantee a minimim media streaming throughput on a gigabit network. Once you go beyond 100mbit (and any virtual server infrastructure likely uses several teamed gigabit adapters), the PCI bus kicks in as an IO constraint. But PCI-X specification took care of that as it at the time did 133MB/s or 1064Mb/sec (gigabit speed - and this was 6 years ago so and is faster now). So once you move past bus speeds, for us, disk IO constraints kicked in at around 5-600mbit/sec. Of course, there are lots of dependencies here, but we were testing on seriously good hardware (for its time) on large compaq raid arrays. If we streamed data from memory, we acheived 992mbit on a gigabit network. If we read from disk it went down to 600-650mbit. Even based on figures from 6 years ago, 600mbit is plenty to handle a heavy load SQL server for most sites :-) Now VM or no VM, if the disk infrastructure is on a SAN, we know that PCI bottlenecks are unlikely to become an issue and fibre channel is 2 or 4 gigabit. You could still hit constraints if enough VM's worked hard enough at he same time, but for the most part, it all comes down to the disk infrastucture you have. I do know of companies that run production VM's because they have all of the same advantages of using VM's for Dev, but they always put their data on a fast, redundant disk infrastructire. They planned things properly by estimating future peak I/O requirements of their VM's and ensured that the VM hardware was sized for those peak loads. Thus I don't see a problem with SharePoint/SQL on production VM's when properly sized and planned for. In fact I know IBM engineers who swear by this arrangment for Exchange as well (and Microsoft definitely does not support exchange on VM's) regards Paul On Wed Feb 6 13:26 , Dave Porter <[EMAIL PROTECTED]> wrote: Mainly networking issues and high proc and IO's that choke a virtual server. You need one heck of a virtual environment for a SQL server. Since MOSS makes many more calls than the previous version of SharePoint, SQL utilization goes up. Dave P. ________________________________ Date: Wed, 6 Feb 2008 14:06:46 +0900 From: [EMAIL PROTECTED] To: [email protected] Subject: Re: [OzMOSS] MOSS & V-Motio Dave is there any way you could elaborate more on "not seen SQL do well" just out of interest. Thanks Jeremy Thake [EMAIL PROTECTED] <javascript:top.opencompose('[EMAIL PROTECTED]','','','')> On Feb 6, 2008 1:55 PM, Dave Porter <[EMAIL PROTECTED] <javascript:top.opencompose('[EMAIL PROTECTED]','','','')> > wrote: I have seen several issues with MOSS when you virtualize SQL. It is not recommended. You can virtualize the WFE's, but I have not seen SQL do well in a virtual environment. What are the specs on the virtual environment? Dave P. ________________________________ Subject: [OzMOSS] MOSS & V-Motion Date: Wed, 6 Feb 2008 10:03:08 +1100 From: [EMAIL PROTECTED] <javascript:top.opencompose('[EMAIL PROTECTED]','','','')> To: [email protected] <javascript:top.opencompose('[email protected]','','','')> Hi all, We currently have a client who has a virtual SharePoint environment. Virtual Web/Application Server and a virtual SQL Server. We are seeing, when the web/application server is v-motion, a whole stack of database connectivity errors appear in the event log, the SharePoint logs bloat to massive size and owstimer.exe is peaking out. My initial investigation has revealed that while v-motion is happening, network connectivity between the web/application server and the SQL server is lost. Has anyone encountered this before, as this seems like a common setup and if so, is there a work around for this (we have currently set the web/application and SQL server not to v-motion and be static). Thanks, - Adelaide SharePoint User group - http://www.aspug.org.au <http://www.aspug.org.au/> (Comming Soon!) - My Blog: http://www.danielbrown.id.au <http://www.danielbrown.id.au/> ý Please consider the envrionment before printing this email. ------------------------------------------------------------------- OzMOSS.com - to unsubscribe from this list, send a message back to the list with 'unsubscribe' as the subject. 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