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Feature #21741
closedos/bluestore: multi-tier support in BlueStore
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Description
Currently, BlueStore stores data in a single block device.
Allow users to add a fast tier (ex. SSD) to BlueStore so that clients can do tiering in order to improve performance.
Users can add a fast tier to BlueStore by using the new configuration options (bluestore_block_fast_path/size/create).
Clients can put data in the fast tier by calling set_alloc_hint API with LIBRADOS_ALLOC_HINT_FLAG_FAST_TIER flag. By default, all data is stored in the slow tier.
If clients call set_alloc_hint API after creating an object, the data is moved between tiers.
Updated by Ken Iizawa over 6 years ago
Updated by Kefu Chai over 6 years ago
- Status changed from New to Fix Under Review
- Assignee set to Ken Iizawa
Updated by Sage Weil over 6 years ago
- Project changed from RADOS to bluestore
- Category deleted (
Tiering)
Updated by Sage Weil about 6 years ago
- Status changed from Fix Under Review to In Progress
Updated by Igor Fedotov almost 3 years ago
- Status changed from In Progress to Closed
Closing due to inactivity
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