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Architecture - DMU OSD
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Note: The content on this page reflects the state of design of a Lustre feature at a particular point in time and may contain outdated information.
Summary
DMU OSD is a implementation of OSD API for DMU.
Definitions
DMU is a core of ZFS.
Use Cases
| ID | Quality Attribute | Summary |
|---|---|---|
| mount | usability | |
| umount | usability | |
| fid mapping | usability | how we map fids to local object id (dnode) |
| async IO | performance | use async IO where possible for better performance |
| swapping | performance | protect cache from swapping (actual for userspace DMU) |
Quality Attribute Scenarios
Implementation Details
here we enlist how DMU API matches OSD API
