Access denied to sapmnt\<SID>\SYS\global\security\data\SecStore.properties

Dear Forum,

I have an EP 6.0 on clustered servers. When I change the parameter in the configtool's secure store, there is an error message showing access denied.

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I/O error on file "
gdcsepci\sapmnt\PP1\SYS\global\security\data\SecStore.properties".

com.sap.security.core.server.secstorefs.FileIOException: I/O error on file "
gdcsepci\sapmnt\PP1\SYS\global\security\data\SecStore.properties".

at com.sap.security.core.server.secstorefs.StorageHandler.flush(StorageHandler.java:769)

at com.sap.security.core.server.secstorefs.SecStoreFS.updatePair(SecStoreFS.java:2351)

at com.sap.sql.connect.OpenSQLConnectInfo.rebind(OpenSQLConnectInfo.java:739)

at com.sap.sql.connect.OpenSQLConnectInfo.rebind(OpenSQLConnectInfo.java:709)

at com.sap.engine.configtool.batch.task.ChangeSecStoreTask.replaceJDBCConnectionInfo(ChangeSecStoreTask.java:183)

at com.sap.engine.configtool.batch.task.ChangeSecStoreTask.go(ChangeSecStoreTask.java:119)

at com.sap.engine.configtool.batch.task.TasksThread.run(TasksThread.java:46)

Caused by: java.io.FileNotFoundException:
gdcsepci\sapmnt\PP1\SYS\global\security\data\SecStore.properties (Access is denied)

at java.io.FileOutputStream.open(Native Method)

at java.io.FileOutputStream.<init>(FileOutputStream.java:179)

at java.io.FileOutputStream.<init>(FileOutputStream.java:70)

at com.sap.security.core.server.secstorefs.StorageHandler.flush(StorageHandler.java:765)

... 6 more

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I have tried to change the security on SAPMNT to full control to everyone, but didn't help.

Please help.

Regards,

Agoes