Exclude paths on DMP with VxVm 5.x

Hi,

How I can exclude some paths from DMP control on VxVm 5.x? I need to this
because, I want to have Hitachi disks managed by DMP and EMC disks managed
by PowerPath.

VxVM 5.0 knows not to handle DMP for any EMC disks with powerpath.


OK, so even if c9t10d0  and c10t10d0  are the 2 paths for an EMC LUN and 
this is under PowerPath (say emcpower10), you will see the followingL


vxdisk list


Will show you the disks VxVM knows about. Depending on your naming 
scheme, you might see something like

c9t10d0       or EMC0_0      or  emcpower10c


So, now, go and check what that disk is (and how many paths VxVM DMP is 
controlling). Say it is c9t10d0, then do

vxdisk list c9t10d0



Look specifically at the last line !!

You will see that VxVM will have only 1 path to all EMC disks under 
PowerPath. Thus VxVM will not do DMP (M = Multi, and as such VxVM sees 
only 1 path and thus can not do the "M" bit)


So, sorted alread !!!


By the way, this is called TPD (Thirt Party Driver) support and has been 
available since VxVM 4.1





Fernando Mendoza wrote:
> Hi,
> 
> How I can exclude some paths from DMP control on VxVm 5.x? I need to this
> because, I want to have Hitachi disks managed by DMP and EMC disks managed
> by PowerPath.
>