IBM System Storage Ideas Portal
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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
Quota provides a close approximation to this requirement. Anything closer would involve excessive overhead.
A fast, approximate df-like command is possible for a storage pool, see https://www.ibm.com/developerworks/community/forums/html/topic?id=d30c6462-68f0-4b35-9e58-92743a5c9f87&ps=25
Filesets operate on a different plane that's orthogonal to block allocation. Blocks belong to storage pools, while inode and directory subtrees belong to filesets. So when a block is allocated, this is accounted for in storage pool metadata, but not in fileset metadata. It would be theoretically possible to maintain a running total, but at the cost of substantial overhead. Essentially, this is what quota code does today. It is not clear that having a parallel mechanism that's substantially similar to that used by quota code would make sense. If something is fundamentally wrong with the way quota code does this, perhaps we should fix the quota code instead of implementing another layer.
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 #56781 in product GPFS.