How to remove DISKs/LUNs FROM Solaris

1. Identify the file systems.
2. Get the disks that belong to the file system.
3. Check them in the metaset/metadevice and make sure no one else is using them (no other soft partition).
4. Clean the metadevice from the metaset
5. REMOVE THE DISKS FROM THE METASET
6. REMOVE THE METADB FOR THE DISKS THAT YOU WANT TO REMOVE
7. ASK data storage to remove the disks
8. Configure the controllers after you confirm that the disks has been removed in all nodes
9. Run devfsadm -Cv in all nodes
9. Run scgdevs in ONE NODE (in case you are using SUN Cluster)
10. Run scdidadm -C in ONE NODE (in case you are using SUN Cluster)
11. Check all nodes have the same number of LUNS (in case you are using SUN Cluster)

For more information check http://docs.sun.com/app/docs/doc/817-1673/6mhcv6m38?a=view