| Softupdates |
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| • | Three
traditional file system mount types: |
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| 1. | Asynchronous
data and meta-data writes (Linux default).
Very fast, but unsafe |
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| 2. | Asynchronous
data, synchronous meta-data writes (FreeBSD default). Slower, |
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| but
safer |
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| 3. | Journaling.
Can be very fast, but the code is complicated. |
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| • | Softupdates
is a mechanism for ordering meta-data writes |
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| • | All
the speed of (1), with the safety of (2) |
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| • | Softupdates
and journalling have different results on |
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| different
data sets |
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