Expert Oracle Exadata - Parent Directory

CHAPTER 2 OFFLOADING / SMART SCANalter diskgroup SMITHERS add failgroup LOCAL disk '/dev/raw/raw5','/dev/raw/raw6'*ERROR at line 1:ORA-15032: not all alterations performedORA-15285: disk '/dev/raw/raw5' violates disk group attribute cell.smart_scan_capableORA-15285: disk '/dev/raw/raw6' violates disk group attribute cell.smart_scan_capableSYS@+ASM> alter diskgroup smithers set attribute 'cell.smart_scan_capable' = 'FALSE';Diskgroup altered.SYS@+ASM> alter diskgroup SMITHERS add failgroup LOCAL disk '/dev/raw/raw5','/dev/raw/raw6';Diskgroup altered.SYS@+ASM> select name, total_mb from v$asm_diskgroup where state='MOUNTED'NAMETOTAL_MB-------------------------------------------------- --------SMITHERS 512,000SMITHERS_LOCAL 1,562SYS@+ASM> select g.name "diskgroup", d.path "disk", d.failgroup "failgroup", d.total_mb "disksize" from v$asm_diskgroup g, v$asm_disk d where g.group_number=d.group_number andg.state='MOUNTED'diskgroup disk failgroup disk size--------------- ------------------------------------- ----------------------- ---------SMITHERS /dev/raw/raw5 LOCAL 102,400SMITHERS /dev/raw/raw6 LOCAL 102,400SMITHERS o/192.168.12.3/SMITHERS_CD_05_cell01 ENKCEL01 102,400SMITHERS o/192.168.12.4/SMITHERS_CD_05_cell02 ENKCEL02 102,400SMITHERS o/192.168.12.5/SMITHERS_CD_05_cell03 ENKCEL03 102,400SMITHERS_LOCAL /dev/raw/raw1 SMITHERS_LOCAL_0000 781SMITHERS_LOCAL /dev/raw/raw2 SMITHERS_LOCAL_0001 7817 rows selected.We started out with a diskgroup on Exadata storage that contained a table compressed with HCC.When we initially tried to add the non-Exadata storage to that disk group, we got an error saying we hadviolated the cell.smart_scan_capable disk group attribute. Once we changed the attribute, setting it toFALSE, we were able to add the non-Exadata storage (of course, changing this setting disables SmartScans on any object with segments stored in this disk group). We then logged onto the database andtried to access our compressed table:SYS@SMITHERS> select table_name, compression, compress_for2 from dba_tables where owner='ACOLVIN';47