Solutions Enabler: Non-Disruptive device moves between Storage Groups

Summary: Arrays running HYPERMAX OS allow moving devices from one Storage Group (SG) to another SG without disrupting host visibility for the devices.

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Instructions

Moving a device to another SG does not disrupt the host visibility for the device, if any of the following conditions are met:
 

  • Moves between child Storage Groups (SGs) of a parent SG, when the view is on the parent SG.
  • Moves between SGs when a view is on each SG, and both the initiator group (IG) and the port group (PG) are common to the views.
  • Moves between SGs when a view is on each SG, and they have a common IG. They have different port groups, but the same set of ports or the target PG is a superset of the source PG.
  • Moves when the source SG is not in a masking view.


If none of these conditions are met, the operation is rejected.
The move can be forced by specifying the -force flag, but forcing a move may affect the host visibility of the device.

Device moves between FAST managed SGs, or between a FAST managed SG and a non-FAST managed SG is permitted.

The symsg syntax:

symsg -sg <SgName> -sid <SymmID> move dev <SymDevName> <DestSgName> [-force] [-devs <<SymDevStart>:<SymDevEnd> | <SymDevName>
  [,<<SymDevStart>:<SymDevEnd> | <SymDevName>>...]> | -file <DeviceFileName> [-tgt] ] moveall <DestSgName> [-force]

Affected Products

Solutions Enabler
Article Properties
Article Number: 000155531
Article Type: How To
Last Modified: 24 Sept 2025
Version:  5
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