The reason I asked because of the whole UUID thing, I don’t think it will matter here as you are not changing Host id, not migrating to another array ..something that would require VMFS resignature.
Hello,   i have a question about performance on lun's presented to VMware and used as a extent.  here is the config  extent1     RG14     SATA extent2     RG15     SATA extent3     RG12     FC extent4     RG13     FC  All the lun's are 1TB in size and the drive has been extented 3 tiimes in vSphere to make a 4TB VMFS volume.  Now what i want to do is migrate 3 & 4 into RG's 14 & 15 but i am not sure if there will be a performance hit.  I know about the performance hit when you have stacked metalun's and even though these are not metalun's, to me it is the same concept.  Will there be big spindle contention?  Now those extents are concantonated  so i would think that if i was writing to the end of extent2, that the next write would go to extent 3 which would be moved to a different RG (14).  The target RG's are 7 disk R5 with 750G drives  Thanks
Vmware extent Lun's in same RG?