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VMotion of Exchange mailbox server causing downtime

Hi,

When doing VMotion for Exchange Server 2007 SP1 CCR mailbox in the DR instance, it stopped the production node and causing downtime to the production mailbox server eventhough the VMotion is only for the DR instance  ?
 
Because during the VMotion the Virtual IP and clustername is not responding to ping, thus causing massive total outage in the production mailbox.
 
The solution was to turn off the DR instance after the VMotion to make it fail over to the production node again.
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Senior IT System Engineer
Asked:
Senior IT System Engineer
2 Solutions
 
uescompCommented:
I would say it depends on how your storage is setup.  Vmotion should only (maybe) drop the ping for 1-2 seconds but when you are moving it to the other server do you have a seperate iSCSI LUN attatched or is everything stored on a central location (SAN).
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Senior IT System EngineerIT ProfessionalAuthor Commented:
It is connected to the same Fiber channel SAN as and te network as well.
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
It's possible this can happen, that you may lose a "few pings" whilst the vMotion is in progress, but this depends on how busy your Exchange Server.
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piyushranusriCommented:
wht vsphere version are you using ?


1. how you attached the hdd on exchange server..because i face this issue as i add as d rive the esx local hdd instead of storage LUN.
2.http://www.vmware.com/files/pdf/resources/availability_recovery_exchange_sb.pdf
3.http://communities.vmware.com/message/1536600
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Senior IT System EngineerIT ProfessionalAuthor Commented:
I'm using VMware vSphere ESX 4.1.0 433742

the drives area all RDM presented from my EMC CX3 array, all of the ESX servers got access to the LUNs.
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Senior IT System EngineerIT ProfessionalAuthor Commented:
So the problem was after the VMotion of te Exchange Mailbox server in DR finished, all of my users got disconnected from the Exhcange Server.

Eventhough
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Senior IT System EngineerIT ProfessionalAuthor Commented:
Eventhough the DR mailbox server took over but none of my users are able to connect back to the Outlook.
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Simon Butler (Sembee)ConsultantCommented:
I have to say I wouldn't mix CCR and vMotion - in fact I am pretty sure that you are an unsupported scenario. The general consensus with HA on Exchange 2007 is that you should use one or the other technology, not both. It is only with Exchange 2010 that both are supported.
Also Exchange 2007 SP1 is very old you should really be on Exchange 2007 SP3 with the latest rollup.

Simon.
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
I concur with Sembee2, we do not use vMotion on busy Exchange servers, that are heavily loaded, the STUN cycle can cause issues.
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Senior IT System EngineerIT ProfessionalAuthor Commented:
But I only vMotion the passive node ?
I'm confused as to why it affects the production node.
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Possibly - You cluster setup is not correct.

If the Passive Node, became non-responsive, and a cluster failover attempt was made, failover cluster has taken resources offline.
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