Storage: Dell Clariion CX700 SAN ...powerpath ? Errors in file /u01/app/oracle//admin/pr09/bdump/pr09_ckpt_29193.trc: ORA-01171: datafile 12 going offline due to error advancing checkpoint ORA-01110: data file 12: '/u01/oradata/pr09/agile_indx101pr09.ora' ^^^^^^^^^^^^^ ... Is this ext3 ? ORA-01115: IO error reading block from file 12 (block # 1) ORA-27072: skgfdisp: I/O error Linux-x86_64 Error: 5: Input/output error ... are there corresponding /var/log/messages entries for these EIO errors tht would impugn the scsi layer or other goodies downwind? Trying to establish if this is an EIO pushed up from a software layer (perhaps powerpath) ? Being intermittant there whould be /var/log/messages goodies to clue us in -- //www.freelists.org/webpage/oracle-l