SAS Raid - mfi driver

Tue Oct 31 22:17:31 UTC 2006

Fredrik Widlund wrote:
> Solved my issue with LSI 8480E without BBU. With "write: BadBBU",
> "cache: enabled", and "io: cached", performance rose to around 200MB/s
> from 20MB/s.

I don't know what "BadBBU" is, but from some Googling it seems to be a
setting that overrides BBU detection, and enables write caching even if
the system believes BBU is broken or missing. If true, this may be
dangerous for data consistency.