On Tue, 24 Jan 2006, Patrick Mansfield wrote:
On Tue, Jan 24, 2006 at 12:52:36PM -0500, Chip Coldwell wrote:
Put
options st try_direct_io=0
in /etc/modprobe.conf. Direct I/O defeats read-ahead, and
significantly (factor of >5) degrates read performance. I don't know
about writes.
For tape???
Yes, for tape. We verified this with a DAT72 DDS drive.
Chip
--
Charles M. "Chip" Coldwell
Senior Software Engineer
Red Hat, Inc
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