migrate XP256 data to XP128

[Edgar_8]

Hi All,

We are planning to migrate our existing hardware infrastructure ( 2X N4000 colocated servers connected
to an XP256 array running business copy) to new hardware infrastructure ( 2 sites - Production/PRD & DR ;
therefore 2X RP8420 at each site running business copy on an XP128 array at each site).
Our migration plan so far is :
- setup pri/sec severs and XP128 arrays at both sites(PRD/DR)
- install O/S;Oracle;HBAs
- setup mirror of vg00 of new RP8400's at each site(1 mirror copy on internal disk & the other on external storage)
- setup XP business copy on both PRD/DR sites
- shutdown DB & stop app running on N-4000, then take a full backup of data on XP256 using netbackup
- restore data from backup onto new XP128 at PRD site
- sync the PRD pri/sec environments at the PRD site
- start DB & app

Question:
1. Is the above plan bullet proof OR is there a more viable;risk free procedure we could follow?
2. Is there a way we could copy data off the XP256 to the XP128 if they are not colocated?
3. Could we just create map files for each vg on existing N-4000's; deactivate the vg's; disconnect the
XP256 from N-4000's; remove pv's from XP256; insert pv's into XP128; import vg's & activate vg?

Any advice on the most viable & risk free procedure would be most appreciated.

Thanks in advance!

[Edgar_8]

Hi All,

Can anybody provide some advice on the original post?

Thanks in advance!

[Fabian_Nowee]

For so far i know it's only possible to CA (HDS Remote Copy) with escon from a 256 (7700E) to a 128 (9970V)

Other possibility is to to a hostbase migration, assign mirror between your storageboxes.