Hello, all!
We have a Stretch MetroCluster with both mirrored and non-mirrored aggregates at the moment (in transition). All aggregates are production. During the next downtime the plan is to reconfigure the system so that all aggregates are mirrored, by introducing the non-mirrored SAS shelves into the ATTO stacks on both nodes.
Since this is not a hot-add scenario, this should be relatively easy to accomplish. But my experience in this matter is limited and it's worth running a couple of points by the community for confirmation/comments:
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1. When adding an existing non-mirorred SAS shelf to existing ATTO stack residing on the same node, with plans for that shelf to remain in pool0 (local disk), other than the automatic change of disk paths - will anything else change? Aggregate properties, data volumes, disk ownership, pool assignment should remain identical - making the aggregate will be readily accessible, correct?
2. Same game plan as 1, but this time with plans for the SAS shelf to become a part of pool1 (remote disks for partner node). Other than going into Maintenance mode and reassigning disks to pool1, is there anything else that needs attention?
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3. When adding an existing non-mirorred SAS shelf to existing ATTO stack residing, but this time on the different node, with plans for that shelf to remain in pool0 (local disk) - other then changing disk ownership is there anything else to keep in mind?
4. Similarly, same game plan as 3, with plans for the SAS shelf to become a part of pool1 (remote disks for partner node). That would imply having to change both disk ownership and pool assignment, right?
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Please share your thoughts!
Thanks!
