1332   A logical device may contain at most one LPHD

Created: 20 Nov 2014

Status: Not Applicable

Part: Part 7-2 (2010; Edition 2)

Links:

Page: 38

Clause: 9.1.2.2

Paragraph:

Category: No impact on this part

Issue

Edition 1 (Clause 8.1.2.3) clearly specified that a logical device must contain one LLN0 and one LPHD.
In Edition 2, there is no more constraint on LPHD.

Proposal

If the logical device is a root logical device, then the logical device must contain one (and only one) LPHD.
Otherwise, the logical device may contain 0..1 LPHD.

Discussion Created Status
The LPHD presence condition has been removed from 7-2 in Ed2 to 7-1 by purpose, since the Logical Device hierarchy was introduced in ed2 making the madating of LPHD in every logical device over-engineered.

See 7-1 Ed2 Clause 8.2.3.
08 Dec 14 Not Applicable

 

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