IBM System Storage Ideas Portal
This portal is to open public enhancement requests against IBM System Storage products. To view all of your ideas submitted to IBM, create and manage groups of Ideas, or create an idea explicitly set to be either visible by all (public) or visible only to you and IBM (private), use the IBM Unified Ideas Portal (https://ideas.ibm.com).
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Due to processing by IBM, this request was reassigned to have the following updated attributes:
Brand - Servers and Systems Software
Product family - IBM Spectrum Scale
Product - Spectrum Scale (formerly known as GPFS) - Private RFEs
Component - Product functionality
For recording keeping, the previous attributes were:
Brand - Servers and Systems Software
Product family - IBM Spectrum Scale
Product - Spectrum Scale (formerly known as GPFS) - Private RFEs
Component - V3 Product functionality
The basic problem with trying to consume failure group definitions in mmshutdown is that it would constitute a layering violation. A failure group definitions is a property of a disk in given file system, not a property of a given node. If multiple file systems are present, failure groups may be laid out differently, and possibly in a conflicting manner (the disks belonging to the same node may belong to different failure groups in different file systems). Of course, in the special case of only a single file system being defined this would appear to be less of a problem, but the general GPFS syntax conventions do need to cover the general case.
On the more practical level, failure group definitions are stored in the file system descriptor for a given file system, and are thus not available if the file system itself is not available (e.g. the file system has been force-unmounted on a given node due to a quorum loss due to network communication errors). mmshutdown, however, must work under all conditions, rain or shine, and cannot depend on a specific file system being online.
Due to processing by IBM, this request was reassigned to have the following updated attributes:
Brand - Servers and Systems Software
Product family - General Parallel File System
Product - GPFS
Component - V3 Product functionality
Operating system - Linux
For recording keeping, the previous attributes were:
Brand - Servers and Systems Software
Product family - General Parallel File System
Product - GPFS
Component - V3
Operating system - Linux
Creating a new RFE based on Community RFE #56294 in product GPFS.