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December 10th, 2010 06:00
VMware 4.1 & Flare 30
We in the process of migrating our Vmware environment to 4.1 and on to a Clariion CX4-960 with FLARE 30. A couple of questions:
- How do I get my hosts to auto-register on the Clariion? They were manually registered on the older Clariions we have in the past. I have searched both Vmware and Powerlink and both say they should just do it but they are not.
- If hosts are manually registered will all of the integration work to offload cloning, storage vmotion, lun locking, etc? Or do they need to be auto registered?
clintonskitson
116 Posts
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December 10th, 2010 11:00
Hopefully this is helpful..
If a host is previously registered then it will not update itself to be auto-registered. This is similar situation where paths need to manually added to a storage group if paths are added after the fact to a host. What it boils down to is the array isn't going to make changes that could adversely affect an active host. My best solution for this would be to put the host in maintenance mode, power off the host, remove the host from storage group, and remove the initiators from the storage connectivity screen of the array. Once this is done, when you power up the host it should auto-register itself and you should see it as available by way of adding to storage groups or seeing it in the connectivity screen.
I would really only do this if you want to ensure what you see is correct from a host perspective. During manual registration it is possible to mismatch IPs to hostnames and can later be difficult to then see what's what. I rely mostly on WWN's in this case to ensure I am working with the right initiators and hosts.
The VAAI functionality is not dependent on whether it is auto-registered or not. See the below post for troubleshooting information. If you have Flare30 and the functionality is enabled (default in 4.1) and there is a VAAI specific function that VMware tries to use, it should work, see post for details if not. The functionality is at the SCSI layer, whereas the agent functionality (registration to array) is at the IP layer.
https://community.emc.com/thread/113823?tstart=0