Hi, It is not clear from your mail what is the exact operation which has led to this issue. Are there any errors in the alert.log of the ASM instance? You can try to force a rebalance on this node and check if it helps alter diskgroup ORADATA1 rebalance power 11; Also I hope u are on 10.2.0.2 Regards, Fairlie Johan Eriksson <valpis@xxxxxxxxx> wrote: Hi In our RAC environment (oracle 10.2 on linux, storage is in ASM, 2 node cluster) I should add a second diskgroup so that we could run some bigger tests but instead of creating a new diskgroup I added it to the existing group. Now I dont know how to remove it from the group. At the moment only one node is working , probably due to this error i made. from sqlplus i get: system@msrac1> select name, state from v$asm_disk; NAME STATE ------------------------------ -------- ORADATA1 NORMAL but when looking in EM I also have a second disk ORADATA2 in state FORCING, it shows 100% used but should have no data in it. /johan -- //www.freelists.org/webpage/oracle-l Fairlie Rego Senior Oracle Consultant http://el-caro.blogspot.com/ M: +61 402 792 405 --------------------------------- How low will we go? Check out Yahoo! Messenger?s low PC-to-Phone call rates.