![]() ![]() To get a proper snap of the filesystem inside the vmdk file, VMware snapshotting would be required. Leveraging an array snapshot against a vmdk is kind of tricky since the disk in question is actually a file sitting in a datastore which is in turn sitting in some pool of array-based storage. Thinking it through, it makes sense that SME requires LUNs rather than vmdks if you take into account what it would be snapshotting. There are references to physical and virtual resources in the Snapmanager for Exchange admin guide but I believe those are related to Exchange cluster resources and not virtual disks or virtual machines. I did a quick look for some documentation that specifically deals with this and I didn't find anything explicit. Likewise, apologies if this is just a total rehash of what you've investigated so far. I work with Netapp but I am not directly familiar with Snapmanager for Exchange so hopefully somebody with direct experience w/ SME and virtualized Exchange can offer better insight. If this is the case, you would still run your operating system on a VMDK stored on NFS and then present an iSCSI or FC LUN to the guest for things like Database or Translogs.Ģ.You should profile your application using perfmon and determine the average (but include spikes) for throughput and I/Os per second and compare this to the throughput that you can get using NFS which will depend on how you set up your networking. Things like Snap Manager for Exchange need to use an iSCSI or FC LUN presented directly to the Exchange VM. The more complicated answer is this should be considered carefully in the context of several things.ġ.Are there any SAN or backup application that need native access to the LUNs (RDM or iSCSI). If you have 2-4 thousand heavy Exchange users on a mailbox server you might want to reconsider. The simple answer is "yes" you can run Exchange using vmdks stored on NFS storage and usually in small to medium size environments this is the way to go. I found this information in the vmware forums:
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