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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Welcome to the IBM Ideas Portal (https://www.ibm.com/ideas) - Use this site to find out additional information and details about the IBM Ideas process and statuses.
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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
A pool has a separate block allocation map that covers a specific set of disks. The rest of the file system metadata is shared between different storage pools. It is therefore not possible to do any meaningful integrity checking on a single pool without doing the work of processing metadata shared between pools, other than the block allocation map.
In GPFS, a storage pool is basically represented by a separate block allocation map that covers a specific set of disks. The rest of the file system metadata is shared between different storage pools. It is therefore not possible to do any meaningful integrity checking on a single pool without doing the work of processing metadata shared between pools, which would largely defeat the purpose of trying to limit the processing to a single pool. Even if we only cared about a single storage pool, we'd still need to examine all inodes and indirect blocks, to process all disk address pointers, and this is where the bulk of fsck cost is. Only examining a single block allocation map in conjunction with that processing would be simple wasteful.
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 - Multiple
For recording keeping, the previous attributes were:
Brand - Servers and Systems Software
Product family - General Parallel File System
Product - GPFS
Component - V3
Operating system - Multiple
Creating a new RFE based on Community RFE #56770 in product GPFS.