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07-27-2012 03:53 AM
07-27-2012 03:53 AM
Exporting volume already published as iscsi? [3PAR, F400]
Hi,
I have some volumes already exported as iscsi to ESXi hosts.
Just finished configuring fiber channel [ESXi hosts FC connected to 3PAR F400] and would like to "migrate" those volumes to FC.
Do I just have to export the same volumes as FC [export to ESXi FC host set]?
I've done a test and it says that multiple exports can cause corruption unless the volume is being exported to a clustered environment.
Does ESXi cluster count as a clustered environment? Is is safe to go ahead or should I create a brand new volume and migrate a storage from vCentre?
Do you know how ESXi is going to behave if there is 1 volume exported as iscsi and fc?
Migrate a VM to "new" FC data store? Or is it intelligent enough to see that it is the same volume?
Many thanks,
Pawel
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07-27-2012 07:23 AM
07-27-2012 07:23 AM
Re: Exporting volume already published as iscsi? [3PAR, F400]
First, ESXi cluster counts as a clustered environment.
Second, having a volume exported via iSCSI and FC to the same host is not supported.
If you are talking about changing a host, I believe what you need to do is:
- put the host in maintenance mode,
- change the 3PAR host definition from using iSCSI to FC (persona 6 - generic legacy),
- and have the ESX server rescan for volumes and datastores.
Check the multipathing on each datastore that it is set for round-robin.
There's a lot of information in the HP 3PAR VMware ESX Implementation Guide.
Note: While I am an HPE Employee, all of my comments (whether noted or not), are my own and are not any official representation of the company