One diskgroup to another data movement

DB version: 10 gr 2, 11 2 GR
operating system: Solaris
2 node RAC


Someone here had to move data from one diskgroup to another?
If you did, why it was done and how did you do?

J.Kiechle wrote:
DB version: 10 gr 2, 11 2 GR
operating system: Solaris
2 node RAC

Someone here had to move data from one diskgroup to another?
If you did, why it was done and how did you do?

Explain the problem and therefore move the data.

As for 'move' data at the level of the DSO, while the CAR is running and don't even know... Here are the basic steps:
(a) you add the new disks (which will be the 'new' diskgroup) to the existing diskgroup
(b) you drop all 'old' disks in the existing diskgroup
(c) you start a consolidation process (this will be rewinding the data from 'old' disks on the 'new' records)
(d) once consolidation is completed, the "old" records will be removed the existing diskgroup

Thus the name of diskgrpoup remains the same - but the diskgroup is composed of a whole new set of disks. The 'old' discs are now unused and can be used to create a new another diskgroup.

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