OTECTED] On Behalf
> Of Darren Dunham
> Sent: Thursday, September 28, 2006 5:12 PM
> To: Veritas-vx@mailman.eng.auburn.edu
> Subject: Re: [Veritas-vx] Age old question - PowerPath/DMP
> clarification ...
>
> > [Thomas] This is not an issue in 4.1 MP1. DMP 4.1 will
> de
> [Thomas] This is not an issue in 4.1 MP1. DMP 4.1 will detect that a
> path is back online and will automatically failback to it.
Is this detection different from the older versions? I recall that 3.x
used to check every 5 minutes or so for paths that have come back. Does
4.1 change this?
--
Hi Sanjay,
What we have heard is that DMP will fail to re-enable a failed path
whereas
PowerPath does. So when connecting to Clariions this becomes an
issue
because Clarrions offer active/passive SAN connection. This however
is
not an issue with Symmetrixes. I have also heard from after
> Of Kalpesh Patel
> Sent: Thursday, September 28, 2006 12:21 PM
> To: veritas-vx@mailman.eng.auburn.edu
> Subject: Re: [Veritas-vx] Age old question - PowerPath/DMP
> clarification
>
> > --
> >
> > Message: 4
> > Date: Thu, 28
> --
>
> Message: 4
> Date: Thu, 28 Sep 2006 08:30:13 -0700 (PDT)
> From: Darren Dunham <[EMAIL PROTECTED]>
> Subject: Re: [Veritas-vx] Age old question - PowerPath/DMP
> clarification
> To: Veritas-vx@mailman.eng.auburn.edu
&
> 3) Automatic active-active load balancing between multiple paths. (Clariions
> have limited capabilities to perform active-active load balancing through
> PowerPath while DMP provides none out of the box).
Can you clarify what you mean by "active-active" on a clariion?
DMP will load balance a
Here is the bottom line to PowerPath vs. DMP...we just gone through the same
internal debate when DMXs rolled in.
When to use PowerPath:
1) You do not want finger pointing between vendors when trying to resolve
issues between App-->OS-->HBA Drivers-->HBA-->Storage path!
2) Meet the minimum system
Hi Sanjay --
In my opinion /observation PowerPath is a better fit with
Clariion than Veritas DMP (v 4.1). Even though Veritas DMP
provides even load balancing across multiple HBAs (after
the PointPatch is installed) but it does generates the
"offline"
bogus messages for every secondary pat
