[illumos-Developer] Changing sd_io_time to 8?

[Joerg Schilling]

"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.

I don't understand the reason for a change. Long delays during command 
execution is rather rare and should only happen exceptionally. In those cases
however, the overall time may be shorter if the timeout is longer and could 
allow the drive to recover instead of letting this do the kernel.

Jörg

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