Hi all, I have never had the situation where I need to virtualise a system which has fairly large data disks which are presented via SAN LUNs. I am hoping to get some views/ideas as to the pro...
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Hi all, I have never had the situation where I need to virtualise a system which has fairly large data disks which are presented via SAN LUNs. I am hoping to get some views/ideas as to the process to follow. I guess I have a couple of options here: Currently, the largest data disk in use on the system in question is 1073GB in size. For a vSphere 4.1 environment, this would mean it is comfortably within the 2TB minus 512 bytes maximum VMFS volume size (considering an 8MB block size formatting). The other data disks which are also presented via SAN LUNs are smaller in size and could fit on other datastores once P2V'd. Based on this info, I would say that it would be preferable to P2V everything and not worry about using RDM. I would like to present the option for RDM though, seeing as though the data disks are already being presented from LUN, or if not, at least get a good idea of the process for consolidation in this type of scenario. I have done my research and gathered data on performance metrics - CPU, Mem, network and disk. All are within scope for virtualisation - disk usage is fairly high though, with the average IOPS utilisation over a 24 hour period being 395 IOPS - (peak of 490 IOPS). What are your thoughts on the above two options? Which would you go for, and would someone be able to give me an idea on what they would do should they want to virtualise this system and use RDM for the data disks? - what would the high level process be? Thanks for any input