I tried to add one more datafile in temporary tablespace using-
alter tablespace temp add datafile 'DF_Name'
But it throws following error...

ORA-19502: write error on file "/data/oracle/dbfiles/oradata/SCB/temp02.dbf", blockno 1 (blocksize=8192)
ORA-27072: skgfdisp: I/O error
SVR4 Error: 25: Inappropriate ioctl for device
Additional information: 1

I'm not getting what is the problem...Any idea??