Storage Administration - Oracle Exadata Recipes: A Problem-Solution Approach - page 260

Drop Your Grid Disks and Cell Disks
Once all Oracle database and Grid Infrastructure processes are down on each compute node, proceed to dropping
your Exadata grid disks. Following we will use dcli from a compute node to issue cellcli commands on each storage
cell. First, list your Exadata grid disks:

■ in the example in this recipe, we will only be dropping and creating grid disks and cell disks on our SaS disks;
flash disks will not be changed.

Note

[oracle@cm01dbm01 ~]$ dcli -g ./cell_group cellcli -e list griddisk where disktype=harddisk
cm01cel01: DATA_CD_00_cm01cel01 active
cm01cel01: DATA_CD_01_cm01cel01 active
cm01cel01: DATA_CD_02_cm01cel01 active
cm01cel01: DATA_CD_03_cm01cel01 active
cm01cel01: DATA_CD_04_cm01cel01 active
... output omitted for brevity

Next, drop your grid disks. In the following example, we'll drop each grid disk using its disk prefix with the
force option:

[oracle@cm01dbm01 ~]$ dcli -g ./cell_group cellcli -e drop griddisk all prefix=SDATA force
cm01cel01: GridDisk SDATA_CD_00_cm01cel01 successfully dropped
cm01cel01: GridDisk SDATA_CD_01_cm01cel01 successfully dropped
cm01cel01: GridDisk SDATA_CD_02_cm01cel01 successfully dropped
... output omitted for brevity

[oracle@cm01dbm01 ~]$ dcli -g ./cell_group cellcli -e drop griddisk all prefix=DATA force
cm01cel01: GridDisk DATA_CD_00_cm01cel01 successfully dropped
cm01cel01: GridDisk DATA_CD_01_cm01cel01 successfully dropped
cm01cel01: GridDisk DATA_CD_02_cm01cel01 successfully dropped
... output omitted for brevity

[oracle@cm01dbm01 ~]$ dcli -g ./cell_group cellcli -e drop griddisk all prefix=SRECO force
... output omitted for brevity

[oracle@cm01dbm01 ~]$ dcli -g ./cell_group cellcli -e drop griddisk all prefix=RECO force
... output omitted for brevity

[oracle@cm01dbm01 ~]$ dcli -g ./cell_group cellcli -e drop griddisk all prefix=DBFS_DG force
... output omitted for brevity

When complete, you will have no grid disks available:

[oracle@cm01dbm01 ~]$ dcli -g ./cell_group cellcli -e list griddisk where disktype=harddisk
[oracle@cm01dbm01 ~]$