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by wtallis
4292 days ago
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btrfs at least offers the flexibility to use a collection of mismatched drives and ensure that N copies of the data exist across separate devices. Once it's parity-based RAID modes are stable, it should be able to retain that flexibility while offering a redundant option for cases where N=2 wastes too much space. That combined with regular scrubbing should suffice for moderately sized arrays. Treating drives differently based on their expected failure rates seems like it would only matter for very large arrays trying to keep the redundancy as low as possible. |
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