Sandra,
To the best of my understanding - ASM does not permit mixed sector sizes
in a single disk group - so I presume that rules out the use of the
'removing the old disks and rebalance as we go'
You didn't include the version of grid infrastructure/ASM that your
environment is running ... but this was not allowed in 12c...
12c -->
https://docs.oracle.com/database/121/OSTMG/GUID-8B656725-D347-4166-8775-1070B6C4D580.htm#OSTMG10203
In 19c and higher - there's the concept of logical_sector_sizes and
physical_sector_sizes but I am unsure of how that would fit into your
migration scenario...
https://docs.oracle.com/en/database/oracle/oracle-database/21/ostmg/create-diskgroups.html#GUID-8B656725-D347-4166-8775-1070B6C4D580
Additions, comments, corrections welcome (and I will gladly defer to the
wiser folks in this group)
Thanks,
--Rajesh
On Tue, Oct 12, 2021 at 2:16 PM Sandra Becker <sbecker6925@xxxxxxxxx> wrote:
We need to move some databases off of their current storage, which is old
and no longer supported. The new disk will have a different sector size.
Can we create a new diskgroup for the new storage and use it along with the
old storage? If possible, can we do the balancing and then start removing
the old disks and rebalance as we go? I'm not very familiar with ASM, so
would appreciate some guidance or pointing me to an appropriate document.
I've been doing some google searches, but still not sure we can move the
databases in this manner.
Thank you,
--
Sandy B.
