selection timeout

Matthew Jacob mjacob at feral.com
Mon May 6 15:01:01 PDT 2002


* From the T10 Reflector (t10 at t10.org), posted by:
* Matthew Jacob <mjacob at feral.com>
*

How often do you actually need to do it?

	15 * 250ms == 3.75 seconds.

Since SPI still really isn't defined to be hotpluggable, 3.75 seconds per bus
doesn't seem that bad.

It also depends on your environment. If this is an open bus connection, the
250ms is still desirable. If it's your own internal drives, set it to
something shorter.

I'm not sure the QAS stuff coming down is now what you're looking for tho.

On Mon, 6 May 2002, Neaz, Joe wrote:

> * From the T10 Reflector (t10 at t10.org), posted by:
> * "Neaz, Joe" <Joe.Neaz at stratus.com>
> *
> Is there a generally accepted value for selection timeout that is more
> reasonable for current Ultra160 disk drives than the SCSI spec of 250ms? We
> are trying to reduce the amount of time it takes to rescan the SCSI bus and
> waiting 250ms for non-existent device ID's takes a lot of time.
> 
> Thanks,
>               Joe 
> 
> *
> * For T10 Reflector information, send a message with
> * 'info t10' (no quotes) in the message body to majordomo at t10.org
> 


*
* For T10 Reflector information, send a message with
* 'info t10' (no quotes) in the message body to majordomo at t10.org




More information about the T10 mailing list