Sounds risky. I wouldn't want a LUN available to a host via ONTAP and the original array simultaneously. If something unexpected happens, it's going to corrupt your data.
From: toasters-bounces@teaparty.net toasters-bounces@teaparty.net On Behalf Of Chris Hague Sent: Wednesday, October 10, 2018 12:00 To: Toasters@teaparty.net Toasters@teaparty.net Subject: FLI & Windows Clusters
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Hi All,
We have been using Foreign LUN Import to migrate 3rd party storage systems into CDOT. So far, we have been shutting down servers to perform the cutover.
However we are now due to migrate some multiple node SQL clusters and looking at the possibility of using windows failover cluster manager to make these migrations non-disruptive.
i.e. Failover node 1 resources to node 2 FLI node 1 LUN's & re-zone Failover node 2 resources to node 1 FLI node 2 LUN's & re-zone
We are worried that if we fail over each windows node, migrate it's disks using FLI and change the zoning. When we failover the next node which still has direct access to the 3rd party storage, any writes made will not go through the LUN import relationship on CDOT and potentially cause corruption.
Can anyone offer any advice on this?
Many Thanks, Chris.
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