Re: The eventual fate of BLOCK devices.

[Warner Losh]

In message <[EMAIL PROTECTED]> David 
Scheidt writes:
: It doesn't run on FreeBSD, but Sybase uses block devices for its dedicated
: disk devices.  There may be other RDBMSes that do this. 

EVERY RDBMS that I've ever seen or had to make work with my drivers
has been on the raw partition.  This is because the database writers
DO NOT LIKE OR TRUST the buffer cache due to its non-deterministic
nature of disk writing.  Are you sure that Sybase uses BLOCK devices
and not CHAR devices?

Warner


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