Re: Transport affected timeouts...

James Bottomley
2004-04-16T19:24:25Z

On Fri, 2004-04-16 at 10:40, Smart, James wrote:
> One issue that we're wrestling with in our driver is timeout values. In the
> past, we've encountered large configurations where the timeouts from the
> midlayer are insufficient. In general - we'd like the scsi host to be able
> to add a transport/topology increment time to the base timeout values. The
> methodology would have to be dynamic as it may change as link connectivity
> changes.
>
> Obviously, an hba driver mucking with the timeout values handed to it is
> frowned upon. Is there a recommendation on how we should handle this ?

There's no currently agreed upon framework, but would

http://www-124.ibm.com/storageio/ipr/patch-2.6.5-sd_timeout_mod

Do for what you want?

James