It doesn't matter that the /db2/<SID> has to be in the data volume. it should be either on its own volume other than db2 binary (instance home, software) and SAP binary. The make the volume as part of the Snap Creator process. I have seen customers having /db2/SID on rootvg, and if that is the case the snap restore wont work. Please make sure you move that to a NetApp volume.
mhmm not sure if I get you right... so when you restore the database you normally restore the data volume and the volume containing the db directory? Why? because you restore the SQLOGCTL.LFH in the SQL00001 folder?
The db directory is contained in the soft volume which also contains the db2 software... so this is wrong?
That is correct.The DB directory has information which gets updated as part of the Snapshot process. You will need to make the /db2/SID/db2<sid> as a filesystem which is part of NetApp volume. You will need to bring the database down for this operation. If you need to talk please do let me know. You can reach me at email@example.com.