[illumos-Developer] Changing sd_io_time to 8?

[Cyril Plisko]

On Fri, Apr 29, 2011 at 11:33 PM, Brendan Gregg
<brendan.gregg at joyent.com> wrote:
> G'Day Richard,
> Yes, this has been a nuisance and would be good to tune.  I'm trying to
> remember if it could break anything.  Could this be made an int so it can be
> mdb -kw tuned back to 60 if things go bad for someone?  Of course, we don't
> want to create yet-another tunable if we can avoid it, so this would be
> temporary and eventually switched back to a #define.
> Brendan

Hi,

I believe it is a tunable variable (settable via /etc/system) already:

http://src.illumos.org/source/xref/illumos-gate/usr/src/uts/common/io/scsi/targets/sd.c#233


-- 
Regards,
        Cyril