Solution : https://service.sap.com/sap/support/notes/152877 (SAP Service marketplace login required)
Key words :
db2 list tablespaces show detailthe rebalancer, increased io response times, multiple disk heads reading, improve sql query performance, additional key words tablespace, creating additional tablespaces, improves disk io, oss notes referenced, default diagnostic level, heavy work load
Related Notes :
| 766827 | Composite SAP note: Performance SCM 4.0 |
| 63891 | Appending several containers to one tablespace |