First add disks from the new array to the diskgroups.

Then mirror all your volumes (use the vxassists command and use the "alloc"
option - see man page for vxassist)
(make sure this completes before doing the next steps)

Next remove the mirrors, but remove the "old" disks

Say you have a volume called "MyVol" (in a dg called "MyDG") with the
mirrors (plexes) on disks c13t1d0 and c24t1d0.

The c13t1d0 is on the "old" array while c24t1d0 is on the "new" array

You want to remove the c13t1d0 from the volume. You want to remove the
mirror on that disk. Again use the vxassist command:

vxassist -g MyDG remove mirror !c13t1d0


And that will remove the mirror from the "old" disk (on the "old" array.)

You will still have the "old" disk in the diskgroup. Make sure that it is no
longer used in any volumes (vxprint or gui) and then remove the disks from
the diskgroup:

vxdg -g MyDG rmdisk c13t1d0


The last step (not needed - but good is you want to "clean up" after
yourself), is to tell volume manager to "forget" about the disk. You want to
"unsetup" the disk:

/etc/vx/bin/vxdiskunsetup c13t1d0


ALL DONE !!!


All of the above steps without having to stop, or unmount.



Hope that helps

"CoMteC17" wrote in message
news:40780466@ROSASTDMZ05....
>
> Hello all!!
>
> Here is my situation. I am running Solaris 8 and Veritas Volume Manager
> 3.5mp2.
>
> I have an old Hitachi array and have just bought a new one. I need to
migrated
> my Veritas Disks from the old EMC to the new EMC. What I was wanting to
> do is add the new disk to the Disk Group and mirror the disks. I would
then
> like to remove the old disk from the system. My question is, how do I
remove
> the old volumes cleanly. Do I just remove the array connections, or do I
> break the mirror, or should I do an evacuate of the disks? I have to do
> this while the system is online as well.
>
> Thanks in advance!!

Thanks for the help. The actual command was "vxassist -g mydg remove mirror
my_vol !c5t3d0".

I also found the command "vxplex -o rm dis plex_name"



"Me" wrote:
>First add disks from the new array to the diskgroups.
>
>Then mirror all your volumes (use the vxassists command and use the "alloc"
>option - see man page for vxassist)
>(make sure this completes before doing the next steps)
>
>Next remove the mirrors, but remove the "old" disks
>
>Say you have a volume called "MyVol" (in a dg called "MyDG") with the
>mirrors (plexes) on disks c13t1d0 and c24t1d0.
>
>The c13t1d0 is on the "old" array while c24t1d0 is on the "new" array
>
>You want to remove the c13t1d0 from the volume. You want to remove the
>mirror on that disk. Again use the vxassist command:
>
>vxassist -g MyDG remove mirror !c13t1d0
>
>
>And that will remove the mirror from the "old" disk (on the "old" array.)
>
>You will still have the "old" disk in the diskgroup. Make sure that it is
no
>longer used in any volumes (vxprint or gui) and then remove the disks from
>the diskgroup:
>
>vxdg -g MyDG rmdisk c13t1d0
>
>
>The last step (not needed - but good is you want to "clean up" after
>yourself), is to tell volume manager to "forget" about the disk. You want
to
>"unsetup" the disk:
>
>/etc/vx/bin/vxdiskunsetup c13t1d0
>
>
>ALL DONE !!!
>
>
>All of the above steps without having to stop, or unmount.
>
>
>
>Hope that helps
>
>"CoMteC17" wrote in message
>news:40780466@ROSASTDMZ05....
>>
>> Hello all!!
>>
>> Here is my situation. I am running Solaris 8 and Veritas Volume Manager
>> 3.5mp2.
>>
>> I have an old Hitachi array and have just bought a new one. I need to
>migrated
>> my Veritas Disks from the old EMC to the new EMC. What I was wanting
to
>> do is add the new disk to the Disk Group and mirror the disks. I would
>then
>> like to remove the old disk from the system. My question is, how do I
>remove
>> the old volumes cleanly. Do I just remove the array connections, or do
I
>> break the mirror, or should I do an evacuate of the disks? I have to
do
>> this while the system is online as well.
>>
>> Thanks in advance!!
>
>