We're blocking at the switch on the SAN. 
We're using Emulex.

No, it's much slower to detect failure on balanced.  Minq is close to
the same for time to detect failure.  But we like the adaptive
performance we get better.  

-----Original Message-----
[mailto:[EMAIL PROTECTED] On Behalf Of A Darren
Sent: Wednesday, March 26, 2008 5:09 PM
To: veritas-ha@mailman.eng.auburn.edu
Subject: Re: [Veritas-ha] DMP tests

On Wed, Mar 26, 2008 at 03:53:18PM -0500, [EMAIL PROTECTED]
> Does anyone know why there is a pause in i/o when using the adaptive
> iopolicy if you block one path?

How are you doing the blocking? 
What are the storage HBA/drivers in use on the host?

When you use other I/O policies, do you get significantly faster
detection of path failure?  (I wouldn't think that it should matter

Darren Dunham                                           [EMAIL PROTECTED]
Senior Technical Consultant         TAOS            http://www.taos.com/
Got some Dr Pepper?                           San Francisco, CA bay area
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