Monday 27 February 2017

Steps To Resize ASM disks in Exadata

Overview
In Exadata ASM disk groups are created from ASM disks which are provisioned as grid disks from Exadata storage cells. The grid disks are created from the celldisks. Normally, there is no free space in celldisks, as all space is used for grid disks, as shown below:

[root@dm01cel01 ~]# cellcli -e "list celldisk where name like 'CD.*' attributes name, size, freespace"
         CD_00_dm01cel01         528.734375G     0
         CD_01_dm01cel01         528.734375G     0
         CD_02_dm01cel01         557.859375G     0
         CD_03_dm01cel01         557.859375G     0
         CD_04_dm01cel01         557.859375G     0
         CD_05_dm01cel01         557.859375G     0
         CD_06_dm01cel01         557.859375G     0
         CD_07_dm01cel01         557.859375G     0
         CD_08_dm01cel01         557.859375G     0
         CD_09_dm01cel01         557.859375G     0
         CD_10_dm01cel01         557.859375G     0
         CD_11_dm01cel01         557.859375G     0


In this article I will demonstrate how to free up some space from the grid disks in RECO ASM disk group, and then reuse that space to increase the size of DATA disk group. The free space can be anywhere on the cell disks.


Environment
  • Exadata Full Rack X2-2
  • 8 Compute nodes, 14 Storage cells and 3 IB Switches
  • High Performance Disks (600GB per disk)

1. Free up space on celldisks
Let's say that we want to free up 50GB per disk in RECO disk group, we need to reduce the disk size in ASM, and then reduce the grid disk size in Exadata storage cells. Let's do that for RECO disk group.

We start with the RECO grid disks with the size of 268.6875G:

[root@dm01cel01 ~]# cellcli -e "list grid disk where name like 'RECO.*' attributes name, size"
         RECO_dm01_CD_00_dm01cel01       105.6875G
         RECO_dm01_CD_01_dm01cel01       105.6875G
         RECO_dm01_CD_02_dm01cel01       105.6875G
         RECO_dm01_CD_03_dm01cel01       105.6875G
         RECO_dm01_CD_04_dm01cel01       105.6875G
         RECO_dm01_CD_05_dm01cel01       105.6875G
         RECO_dm01_CD_06_dm01cel01       105.6875G
         RECO_dm01_CD_07_dm01cel01       105.6875G
         RECO_dm01_CD_08_dm01cel01       105.6875G
         RECO_dm01_CD_09_dm01cel01       105.6875G
         RECO_dm01_CD_10_dm01cel01       105.6875G
         RECO_dm01_CD_11_dm01cel01       105.6875G


To free up 50 GB, the new grid disks size will be 105.6875 G - 50 GB = 55.6875 GB = 57024 MB.

2. Reduce size of RECO disks in ASM

dm01db01-+ASM1 {/home/oracle}:sqlplus / as sysasm

SQL*Plus: Release 12.1.0.2.0 Production on Wed Jan 18 04:16:57 2017

Copyright (c) 1982, 2014, Oracle.  All rights reserved.

Connected to:
Oracle Database 12c Enterprise Edition Release 12.1.0.2.0 - 64bit Production
With the Real Application Clusters and Automatic Storage Management options

SQL> alter diskgroup RECO_dm01 resize all size 57024M rebalance power 32;

Diskgroup altered.


The command will trigger the rebalance operation for RECO disk group.

3. Monitor the rebalance with the following command:
 

SQL> set lines 200
SQL> set pages 200
SQL> select * from gv$asm_operation;

   INST_ID GROUP_NUMBER OPERA PASS      STAT      POWER     ACTUAL      SOFAR   EST_WORK   EST_RATE EST_MINUTES ERROR_CODE                                       CON_ID
---------- ------------ ----- --------- ---- ---------- ---------- ---------- ---------- ---------- ----------- -------------------------------------------- ----------
         2            2 REBAL RESYNC    DONE         32                                                                                                               0
         2            2 REBAL RESILVER  DONE         32                                                                                                               0
         2            2 REBAL REBALANCE WAIT         32                                                                                                               0
         2            2 REBAL COMPACT   WAIT         32                                                                                                               0
         6            2 REBAL RESYNC    DONE         32                                                                                                               0
         6            2 REBAL RESILVER  DONE         32                                                                                                               0
         6            2 REBAL REBALANCE WAIT         32                                                                                                               0
         6            2 REBAL COMPACT   WAIT         32                                                                                                               0
         4            2 REBAL RESYNC    DONE         32                                                                                                               0
         4            2 REBAL RESILVER  DONE         32                                                                                                               0
         4            2 REBAL REBALANCE WAIT         32                                                                                                               0
         4            2 REBAL COMPACT   WAIT         32                                                                                                               0
         3            2 REBAL RESYNC    DONE         32                                                                                                               0
         3            2 REBAL RESILVER  DONE         32                                                                                                               0
         3            2 REBAL REBALANCE WAIT         32                                                                                                               0
         3            2 REBAL COMPACT   WAIT         32                                                                                                               0
         8            2 REBAL RESYNC    DONE         32                                                                                                               0
         8            2 REBAL RESILVER  DONE         32                                                                                                               0
         8            2 REBAL REBALANCE WAIT         32                                                                                                               0
         8            2 REBAL COMPACT   WAIT         32                                                                                                               0
         5            2 REBAL RESYNC    DONE         32                                                                                                               0
         5            2 REBAL RESILVER  DONE         32                                                                                                               0
         5            2 REBAL REBALANCE WAIT         32                                                                                                               0
         5            2 REBAL COMPACT   WAIT         32                                                                                                               0
         7            2 REBAL RESYNC    DONE         32                                                                                                               0
         7            2 REBAL RESILVER  DONE         32                                                                                                               0
         7            2 REBAL REBALANCE WAIT         32                                                                                                               0
         7            2 REBAL COMPACT   WAIT         32                                                                                                               0
         1            2 REBAL RESYNC    DONE         32         32          0          0          0           0                                                       0
         1            2 REBAL RESILVER  DONE         32         32          0          0          0           0                                                       0
         1            2 REBAL REBALANCE EST          32         32          0          0          0           0                                                       0
         1            2 REBAL COMPACT   WAIT         32         32          0          0          0           0                                                       0

32 rows selected.

SQL> select * from gv$asm_operation;

no rows selected


Once the command returns "no rows selected", the rebalance would have completed and all disks in RECO disk group should show new size.

SQL> select name, total_mb from v$asm_disk_stat where name like 'RECO%';

NAME                             TOTAL_MB
------------------------------ ----------
RECO_dm01_CD_02_dm01CEL01           57024
RECO_dm01_CD_05_dm01CEL01           57024
RECO_dm01_CD_06_dm01CEL01           57024
RECO_dm01_CD_08_dm01CEL01           57024
RECO_dm01_CD_04_dm01CEL01           57024
RECO_dm01_CD_00_dm01CEL01           57024
RECO_dm01_CD_03_dm01CEL01           57024
RECO_dm01_CD_09_dm01CEL01           57024
RECO_dm01_CD_07_dm01CEL01           57024
RECO_dm01_CD_11_dm01CEL01           57024
RECO_dm01_CD_10_dm01CEL01           57024
RECO_dm01_CD_01_dm01CEL01           57024
RECO_dm01_CD_05_dm01CEL02           57024
RECO_dm01_CD_07_dm01CEL02           57024
RECO_dm01_CD_01_dm01CEL02           57024
RECO_dm01_CD_04_dm01CEL02           57024
RECO_dm01_CD_10_dm01CEL02           57024
RECO_dm01_CD_03_dm01CEL02           57024
RECO_dm01_CD_00_dm01CEL02           57024
RECO_dm01_CD_08_dm01CEL02           57024
RECO_dm01_CD_06_dm01CEL02           57024
RECO_dm01_CD_02_dm01CEL02           57024
RECO_dm01_CD_11_dm01CEL02           57024
RECO_dm01_CD_09_dm01CEL02           57024
...
RECO_dm01_CD_10_dm01CEL14           57024
RECO_dm01_CD_02_dm01CEL14           57024
RECO_dm01_CD_05_dm01CEL14           57024
RECO_dm01_CD_03_dm01CEL14           57024
RECO_dm01_CD_00_dm01CEL14           57024
RECO_dm01_CD_01_dm01CEL14           57024
RECO_dm01_CD_04_dm01CEL14           57024
RECO_dm01_CD_09_dm01CEL14           57024
RECO_dm01_CD_11_dm01CEL14           57024
RECO_dm01_CD_07_dm01CEL14           57024
RECO_dm01_CD_06_dm01CEL14           57024
RECO_dm01_CD_08_dm01CEL14           57024

168 rows selected.


4. Reduce size of RECO disks in storage cells

[root@dm01cel01 ~]# cellcli
CellCLI: Release 12.1.2.1.1 - Production on Wed Jan 18 05:12:33 CST 2017

Copyright (c) 2007, 2013, Oracle.  All rights reserved.
Cell Efficiency Ratio: 7,004

CellCLI> alter grid disk RECO_dm01_CD_00_dm01CEL01, RECO_dm01_CD_01_dm01CEL01, RECO_dm01_CD_02_dm01CEL01, RECO_dm01_CD_03_dm01CEL01, RECO_dm01_CD_04_dm01CEL01, RECO_dm01_CD_05_dm01CEL01, RECO_dm01_CD_06_dm01CEL01, RECO_dm01_CD_07_dm01CEL01, RECO_dm01_CD_08_dm01CEL01, RECO_dm01_CD_09_dm01CEL01, RECO_dm01_CD_10_dm01CEL01, RECO_dm01_CD_11_dm01CEL01 size=57024M;
grid disk RECO_dm01_CD_00_dm01cel01 successfully altered
grid disk RECO_dm01_CD_01_dm01cel01 successfully altered
grid disk RECO_dm01_CD_02_dm01cel01 successfully altered
grid disk RECO_dm01_CD_03_dm01cel01 successfully altered
grid disk RECO_dm01_CD_04_dm01cel01 successfully altered
grid disk RECO_dm01_CD_05_dm01cel01 successfully altered
grid disk RECO_dm01_CD_06_dm01cel01 successfully altered
grid disk RECO_dm01_CD_07_dm01cel01 successfully altered
grid disk RECO_dm01_CD_08_dm01cel01 successfully altered
grid disk RECO_dm01_CD_09_dm01cel01 successfully altered
grid disk RECO_dm01_CD_10_dm01cel01 successfully altered
grid disk RECO_dm01_CD_11_dm01cel01 successfully altered

[root@dm01cel01 ~]# ssh dm01cel02
Last login: Sun Feb 28 10:22:27 2016 from dm01cel01
[root@dm01cel02 ~]# cellcli
CellCLI: Release 12.1.2.1.1 - Production on Wed Jan 18 05:22:50 CST 2017

Copyright (c) 2007, 2013, Oracle.  All rights reserved.
Cell Efficiency Ratio: 6,999

CellCLI> alter grid disk RECO_dm01_CD_00_dm01CEL02, RECO_dm01_CD_01_dm01CEL02, RECO_dm01_CD_02_dm01CEL02, RECO_dm01_CD_03_dm01CEL02, RECO_dm01_CD_04_dm01CEL02, RECO_dm01_CD_05_dm01CEL02, RECO_dm01_CD_06_dm01CEL02, RECO_dm01_CD_07_dm01CEL02, RECO_dm01_CD_08_dm01CEL02, RECO_dm01_CD_09_dm01CEL02, RECO_dm01_CD_10_dm01CEL02, RECO_dm01_CD_11_dm01CEL02 size=57024M;
grid disk RECO_dm01_CD_00_dm01cel02 successfully altered
grid disk RECO_dm01_CD_01_dm01cel02 successfully altered
grid disk RECO_dm01_CD_02_dm01cel02 successfully altered
grid disk RECO_dm01_CD_03_dm01cel02 successfully altered
grid disk RECO_dm01_CD_04_dm01cel02 successfully altered
grid disk RECO_dm01_CD_05_dm01cel02 successfully altered
grid disk RECO_dm01_CD_06_dm01cel02 successfully altered
grid disk RECO_dm01_CD_07_dm01cel02 successfully altered
grid disk RECO_dm01_CD_08_dm01cel02 successfully altered
grid disk RECO_dm01_CD_09_dm01cel02 successfully altered
grid disk RECO_dm01_CD_10_dm01cel02 successfully altered
grid disk RECO_dm01_CD_11_dm01cel02 successfully altered

[root@dm01cel01 ~]# ssh dm01cel03
Last login: Mon Mar 28 13:24:31 2016 from dm01db01
[root@dm01cel03 ~]# cellcli
CellCLI: Release 12.1.2.1.1 - Production on Wed Jan 18 05:23:40 CST 2017

Copyright (c) 2007, 2013, Oracle.  All rights reserved.
Cell Efficiency Ratio: 7,599

CellCLI> alter grid disk RECO_dm01_CD_00_dm01CEL03, RECO_dm01_CD_01_dm01CEL03, RECO_dm01_CD_02_dm01CEL03, RECO_dm01_CD_03_dm01CEL03, RECO_dm01_CD_04_dm01CEL03, RECO_dm01_CD_05_dm01CEL03, RECO_dm01_CD_06_dm01CEL03, RECO_dm01_CD_07_dm01CEL03, RECO_dm01_CD_08_dm01CEL03, RECO_dm01_CD_09_dm01CEL03, RECO_dm01_CD_10_dm01CEL03, RECO_dm01_CD_11_dm01CEL03 size=57024M;
grid disk RECO_dm01_CD_00_dm01cel03 successfully altered
grid disk RECO_dm01_CD_01_dm01cel03 successfully altered
grid disk RECO_dm01_CD_02_dm01cel03 successfully altered
grid disk RECO_dm01_CD_03_dm01cel03 successfully altered
grid disk RECO_dm01_CD_04_dm01cel03 successfully altered
grid disk RECO_dm01_CD_05_dm01cel03 successfully altered
grid disk RECO_dm01_CD_06_dm01cel03 successfully altered
grid disk RECO_dm01_CD_07_dm01cel03 successfully altered
grid disk RECO_dm01_CD_08_dm01cel03 successfully altered
grid disk RECO_dm01_CD_09_dm01cel03 successfully altered
grid disk RECO_dm01_CD_10_dm01cel03 successfully altered
grid disk RECO_dm01_CD_11_dm01cel03 successfully altered

[root@dm01cel03 ~]# ssh dm01cel04
Last login: Sun Feb 28 10:23:17 2016 from dm01cel02
[root@dm01cel04 ~]# cellcli
CellCLI: Release 12.1.2.1.1 - Production on Wed Jan 18 05:24:27 CST 2017

Copyright (c) 2007, 2013, Oracle.  All rights reserved.
Cell Efficiency Ratio: 7,140

CellCLI> alter grid disk RECO_dm01_CD_00_dm01CEL04, RECO_dm01_CD_01_dm01CEL04, RECO_dm01_CD_02_dm01CEL04, RECO_dm01_CD_03_dm01CEL04, RECO_dm01_CD_04_dm01CEL04, RECO_dm01_CD_05_dm01CEL04, RECO_dm01_CD_06_dm01CEL04, RECO_dm01_CD_07_dm01CEL04, RECO_dm01_CD_08_dm01CEL04, RECO_dm01_CD_09_dm01CEL04, RECO_dm01_CD_10_dm01CEL04, RECO_dm01_CD_11_dm01CEL04 size=57024M;
grid disk RECO_dm01_CD_00_dm01cel04 successfully altered
grid disk RECO_dm01_CD_01_dm01cel04 successfully altered
grid disk RECO_dm01_CD_02_dm01cel04 successfully altered
grid disk RECO_dm01_CD_03_dm01cel04 successfully altered
grid disk RECO_dm01_CD_04_dm01cel04 successfully altered
grid disk RECO_dm01_CD_05_dm01cel04 successfully altered
grid disk RECO_dm01_CD_06_dm01cel04 successfully altered
grid disk RECO_dm01_CD_07_dm01cel04 successfully altered
grid disk RECO_dm01_CD_08_dm01cel04 successfully altered
grid disk RECO_dm01_CD_09_dm01cel04 successfully altered
grid disk RECO_dm01_CD_10_dm01cel04 successfully altered
grid disk RECO_dm01_CD_11_dm01cel04 successfully altered

CellCLI> alter grid disk RECO_dm01_CD_00_dm01CEL05, RECO_dm01_CD_01_dm01CEL05, RECO_dm01_CD_02_dm01CEL05, RECO_dm01_CD_03_dm01CEL05, RECO_dm01_CD_04_dm01CEL05, RECO_dm01_CD_05_dm01CEL05, RECO_dm01_CD_06_dm01CEL05, RECO_dm01_CD_07_dm01CEL05, RECO_dm01_CD_08_dm01CEL05, RECO_dm01_CD_09_dm01CEL05, RECO_dm01_CD_10_dm01CEL05, RECO_dm01_CD_11_dm01CEL05 size=57024M;
grid disk RECO_dm01_CD_00_dm01cel05 successfully altered
grid disk RECO_dm01_CD_01_dm01cel05 successfully altered
grid disk RECO_dm01_CD_02_dm01cel05 successfully altered
grid disk RECO_dm01_CD_03_dm01cel05 successfully altered
grid disk RECO_dm01_CD_04_dm01cel05 successfully altered
grid disk RECO_dm01_CD_05_dm01cel05 successfully altered
grid disk RECO_dm01_CD_06_dm01cel05 successfully altered
grid disk RECO_dm01_CD_07_dm01cel05 successfully altered
grid disk RECO_dm01_CD_08_dm01cel05 successfully altered
grid disk RECO_dm01_CD_09_dm01cel05 successfully altered
grid disk RECO_dm01_CD_10_dm01cel05 successfully altered
grid disk RECO_dm01_CD_11_dm01cel05 successfully altered

CellCLI> alter grid disk RECO_dm01_CD_00_dm01CEL06, RECO_dm01_CD_01_dm01CEL06, RECO_dm01_CD_02_dm01CEL06, RECO_dm01_CD_03_dm01CEL06, RECO_dm01_CD_04_dm01CEL06, RECO_dm01_CD_05_dm01CEL06, RECO_dm01_CD_06_dm01CEL06, RECO_dm01_CD_07_dm01CEL06, RECO_dm01_CD_08_dm01CEL06, RECO_dm01_CD_09_dm01CEL06, RECO_dm01_CD_10_dm01CEL06, RECO_dm01_CD_11_dm01CEL06 size=57024M;
grid disk RECO_dm01_CD_00_dm01cel06 successfully altered
grid disk RECO_dm01_CD_01_dm01cel06 successfully altered
grid disk RECO_dm01_CD_02_dm01cel06 successfully altered
grid disk RECO_dm01_CD_03_dm01cel06 successfully altered
grid disk RECO_dm01_CD_04_dm01cel06 successfully altered
grid disk RECO_dm01_CD_05_dm01cel06 successfully altered
grid disk RECO_dm01_CD_06_dm01cel06 successfully altered
grid disk RECO_dm01_CD_07_dm01cel06 successfully altered
grid disk RECO_dm01_CD_08_dm01cel06 successfully altered
grid disk RECO_dm01_CD_09_dm01cel06 successfully altered
grid disk RECO_dm01_CD_10_dm01cel06 successfully altered
grid disk RECO_dm01_CD_11_dm01cel06 successfully altered

CellCLI> alter grid disk RECO_dm01_CD_00_dm01CEL07, RECO_dm01_CD_01_dm01CEL07, RECO_dm01_CD_02_dm01CEL07, RECO_dm01_CD_03_dm01CEL07, RECO_dm01_CD_04_dm01CEL07, RECO_dm01_CD_05_dm01CEL07, RECO_dm01_CD_06_dm01CEL07, RECO_dm01_CD_07_dm01CEL07, RECO_dm01_CD_08_dm01CEL07, RECO_dm01_CD_09_dm01CEL07, RECO_dm01_CD_10_dm01CEL07, RECO_dm01_CD_11_dm01CEL07 size=57024M;
grid disk RECO_dm01_CD_00_dm01cel07 successfully altered
grid disk RECO_dm01_CD_01_dm01cel07 successfully altered
grid disk RECO_dm01_CD_02_dm01cel07 successfully altered
grid disk RECO_dm01_CD_03_dm01cel07 successfully altered
grid disk RECO_dm01_CD_04_dm01cel07 successfully altered
grid disk RECO_dm01_CD_05_dm01cel07 successfully altered
grid disk RECO_dm01_CD_06_dm01cel07 successfully altered
grid disk RECO_dm01_CD_07_dm01cel07 successfully altered
grid disk RECO_dm01_CD_08_dm01cel07 successfully altered
grid disk RECO_dm01_CD_09_dm01cel07 successfully altered
grid disk RECO_dm01_CD_10_dm01cel07 successfully altered
grid disk RECO_dm01_CD_11_dm01cel07 successfully altered

CellCLI> alter grid disk RECO_dm01_CD_00_dm01CEL08, RECO_dm01_CD_01_dm01CEL08, RECO_dm01_CD_02_dm01CEL08, RECO_dm01_CD_03_dm01CEL08, RECO_dm01_CD_04_dm01CEL08, RECO_dm01_CD_05_dm01CEL08, RECO_dm01_CD_06_dm01CEL08, RECO_dm01_CD_07_dm01CEL08, RECO_dm01_CD_08_dm01CEL08, RECO_dm01_CD_09_dm01CEL08, RECO_dm01_CD_10_dm01CEL08, RECO_dm01_CD_11_dm01CEL08 size=57024M;
grid disk RECO_dm01_CD_00_dm01cel08 successfully altered
grid disk RECO_dm01_CD_01_dm01cel08 successfully altered
grid disk RECO_dm01_CD_02_dm01cel08 successfully altered
grid disk RECO_dm01_CD_03_dm01cel08 successfully altered
grid disk RECO_dm01_CD_04_dm01cel08 successfully altered
grid disk RECO_dm01_CD_05_dm01cel08 successfully altered
grid disk RECO_dm01_CD_06_dm01cel08 successfully altered
grid disk RECO_dm01_CD_07_dm01cel08 successfully altered
grid disk RECO_dm01_CD_08_dm01cel08 successfully altered
grid disk RECO_dm01_CD_09_dm01cel08 successfully altered
grid disk RECO_dm01_CD_10_dm01cel08 successfully altered
grid disk RECO_dm01_CD_11_dm01cel08 successfully altered

CellCLI> alter grid disk RECO_dm01_CD_00_dm01CEL09, RECO_dm01_CD_01_dm01CEL09, RECO_dm01_CD_02_dm01CEL09, RECO_dm01_CD_03_dm01CEL09, RECO_dm01_CD_04_dm01CEL09, RECO_dm01_CD_05_dm01CEL09, RECO_dm01_CD_06_dm01CEL09, RECO_dm01_CD_07_dm01CEL09, RECO_dm01_CD_08_dm01CEL09, RECO_dm01_CD_09_dm01CEL09, RECO_dm01_CD_10_dm01CEL09, RECO_dm01_CD_11_dm01CEL09 size=57024M;
grid disk RECO_dm01_CD_00_dm01cel09 successfully altered
grid disk RECO_dm01_CD_01_dm01cel09 successfully altered
grid disk RECO_dm01_CD_02_dm01cel09 successfully altered
grid disk RECO_dm01_CD_03_dm01cel09 successfully altered
grid disk RECO_dm01_CD_04_dm01cel09 successfully altered
grid disk RECO_dm01_CD_05_dm01cel09 successfully altered
grid disk RECO_dm01_CD_06_dm01cel09 successfully altered
grid disk RECO_dm01_CD_07_dm01cel09 successfully altered
grid disk RECO_dm01_CD_08_dm01cel09 successfully altered
grid disk RECO_dm01_CD_09_dm01cel09 successfully altered
grid disk RECO_dm01_CD_10_dm01cel09 successfully altered
grid disk RECO_dm01_CD_11_dm01cel09 successfully altered

CellCLI> alter grid disk RECO_dm01_CD_00_dm01CEL10, RECO_dm01_CD_01_dm01CEL10, RECO_dm01_CD_02_dm01CEL10, RECO_dm01_CD_03_dm01CEL10, RECO_dm01_CD_04_dm01CEL10, RECO_dm01_CD_05_dm01CEL10, RECO_dm01_CD_06_dm01CEL10, RECO_dm01_CD_07_dm01CEL10, RECO_dm01_CD_08_dm01CEL10, RECO_dm01_CD_09_dm01CEL10, RECO_dm01_CD_10_dm01CEL10, RECO_dm01_CD_11_dm01CEL10 size=57024M;
grid disk RECO_dm01_CD_00_dm01cel10 successfully altered
grid disk RECO_dm01_CD_01_dm01cel10 successfully altered
grid disk RECO_dm01_CD_02_dm01cel10 successfully altered
grid disk RECO_dm01_CD_03_dm01cel10 successfully altered
grid disk RECO_dm01_CD_04_dm01cel10 successfully altered
grid disk RECO_dm01_CD_05_dm01cel10 successfully altered
grid disk RECO_dm01_CD_06_dm01cel10 successfully altered
grid disk RECO_dm01_CD_07_dm01cel10 successfully altered
grid disk RECO_dm01_CD_08_dm01cel10 successfully altered
grid disk RECO_dm01_CD_09_dm01cel10 successfully altered
grid disk RECO_dm01_CD_10_dm01cel10 successfully altered
grid disk RECO_dm01_CD_11_dm01cel10 successfully altered

CellCLI> alter grid disk RECO_dm01_CD_00_dm01CEL11, RECO_dm01_CD_01_dm01CEL11, RECO_dm01_CD_02_dm01CEL11, RECO_dm01_CD_03_dm01CEL11, RECO_dm01_CD_04_dm01CEL11, RECO_dm01_CD_05_dm01CEL11, RECO_dm01_CD_06_dm01CEL11, RECO_dm01_CD_07_dm01CEL11, RECO_dm01_CD_08_dm01CEL11, RECO_dm01_CD_09_dm01CEL11, RECO_dm01_CD_10_dm01CEL11, RECO_dm01_CD_11_dm01CEL11 size=57024M;
grid disk RECO_dm01_CD_00_dm01cel11 successfully altered
grid disk RECO_dm01_CD_01_dm01cel11 successfully altered
grid disk RECO_dm01_CD_02_dm01cel11 successfully altered
grid disk RECO_dm01_CD_03_dm01cel11 successfully altered
grid disk RECO_dm01_CD_04_dm01cel11 successfully altered
grid disk RECO_dm01_CD_05_dm01cel11 successfully altered
grid disk RECO_dm01_CD_06_dm01cel11 successfully altered
grid disk RECO_dm01_CD_07_dm01cel11 successfully altered
grid disk RECO_dm01_CD_08_dm01cel11 successfully altered
grid disk RECO_dm01_CD_09_dm01cel11 successfully altered
grid disk RECO_dm01_CD_10_dm01cel11 successfully altered
grid disk RECO_dm01_CD_11_dm01cel11 successfully altered

CellCLI> alter grid disk RECO_dm01_CD_00_dm01CEL12, RECO_dm01_CD_01_dm01CEL12, RECO_dm01_CD_02_dm01CEL12, RECO_dm01_CD_03_dm01CEL12, RECO_dm01_CD_04_dm01CEL12, RECO_dm01_CD_05_dm01CEL12, RECO_dm01_CD_06_dm01CEL12, RECO_dm01_CD_07_dm01CEL12, RECO_dm01_CD_08_dm01CEL12, RECO_dm01_CD_09_dm01CEL12, RECO_dm01_CD_10_dm01CEL12, RECO_dm01_CD_11_dm01CEL12 size=57024M;
grid disk RECO_dm01_CD_00_dm01cel12 successfully altered
grid disk RECO_dm01_CD_01_dm01cel12 successfully altered
grid disk RECO_dm01_CD_02_dm01cel12 successfully altered
grid disk RECO_dm01_CD_03_dm01cel12 successfully altered
grid disk RECO_dm01_CD_04_dm01cel12 successfully altered
grid disk RECO_dm01_CD_05_dm01cel12 successfully altered
grid disk RECO_dm01_CD_06_dm01cel12 successfully altered
grid disk RECO_dm01_CD_07_dm01cel12 successfully altered
grid disk RECO_dm01_CD_08_dm01cel12 successfully altered
grid disk RECO_dm01_CD_09_dm01cel12 successfully altered
grid disk RECO_dm01_CD_10_dm01cel12 successfully altered
grid disk RECO_dm01_CD_11_dm01cel12 successfully altered

CellCLI> alter grid disk RECO_dm01_CD_00_dm01CEL13, RECO_dm01_CD_01_dm01CEL13, RECO_dm01_CD_02_dm01CEL13, RECO_dm01_CD_03_dm01CEL13, RECO_dm01_CD_04_dm01CEL13, RECO_dm01_CD_05_dm01CEL13, RECO_dm01_CD_06_dm01CEL13, RECO_dm01_CD_07_dm01CEL13, RECO_dm01_CD_08_dm01CEL13, RECO_dm01_CD_09_dm01CEL13, RECO_dm01_CD_10_dm01CEL13, RECO_dm01_CD_11_dm01CEL13 size=57024M;
grid disk RECO_dm01_CD_00_dm01cel13 successfully altered
grid disk RECO_dm01_CD_01_dm01cel13 successfully altered
grid disk RECO_dm01_CD_02_dm01cel13 successfully altered
grid disk RECO_dm01_CD_03_dm01cel13 successfully altered
grid disk RECO_dm01_CD_04_dm01cel13 successfully altered
grid disk RECO_dm01_CD_05_dm01cel13 successfully altered
grid disk RECO_dm01_CD_06_dm01cel13 successfully altered
grid disk RECO_dm01_CD_07_dm01cel13 successfully altered
grid disk RECO_dm01_CD_08_dm01cel13 successfully altered
grid disk RECO_dm01_CD_09_dm01cel13 successfully altered
grid disk RECO_dm01_CD_10_dm01cel13 successfully altered
grid disk RECO_dm01_CD_11_dm01cel13 successfully altered

CellCLI> alter grid disk RECO_dm01_CD_00_dm01CEL14, RECO_dm01_CD_01_dm01CEL14, RECO_dm01_CD_02_dm01CEL14, RECO_dm01_CD_03_dm01CEL14, RECO_dm01_CD_04_dm01CEL14, RECO_dm01_CD_05_dm01CEL14, RECO_dm01_CD_06_dm01CEL14, RECO_dm01_CD_07_dm01CEL14, RECO_dm01_CD_08_dm01CEL14, RECO_dm01_CD_09_dm01CEL14, RECO_dm01_CD_10_dm01CEL14, RECO_dm01_CD_11_dm01CEL14 size=57024M;
grid disk RECO_dm01_CD_00_dm01cel14 successfully altered
grid disk RECO_dm01_CD_01_dm01cel14 successfully altered
grid disk RECO_dm01_CD_02_dm01cel14 successfully altered
grid disk RECO_dm01_CD_03_dm01cel14 successfully altered
grid disk RECO_dm01_CD_04_dm01cel14 successfully altered
grid disk RECO_dm01_CD_05_dm01cel14 successfully altered
grid disk RECO_dm01_CD_06_dm01cel14 successfully altered
grid disk RECO_dm01_CD_07_dm01cel14 successfully altered
grid disk RECO_dm01_CD_08_dm01cel14 successfully altered
grid disk RECO_dm01_CD_09_dm01cel14 successfully altered
grid disk RECO_dm01_CD_10_dm01cel14 successfully altered
grid disk RECO_dm01_CD_11_dm01cel14 successfully altered


Now we have some free space in cell disk

[root@dm01cel01 ~]# cellcli -e "list celldisk where name like 'CD.*' attributes name, size, freespace"
         CD_00_dm01cel01         528.734375G     50G
         CD_01_dm01cel01         528.734375G     50G
         CD_02_dm01cel01         557.859375G     50G
         CD_03_dm01cel01         557.859375G     50G
         CD_04_dm01cel01         557.859375G     50G
         CD_05_dm01cel01         557.859375G     50G
         CD_06_dm01cel01         557.859375G     50G
         CD_07_dm01cel01         557.859375G     50G
         CD_08_dm01cel01         557.859375G     50G
         CD_09_dm01cel01         557.859375G     50G
         CD_10_dm01cel01         557.859375G     50G
         CD_11_dm01cel01         557.859375G     50G


5. Increase size of DATA disks in storage cells

We can now increase the size of DATA grid disks, and then increase all disks size of disk group DATA in ASM.

The current DATA grid disks size is 423 GB:

[root@dm01cel01 ~]# cellcli -e "list grid disk where name like 'DATA.*' attributes name, size"
         DATA_dm01_CD_00_dm01cel01       423G
         DATA_dm01_CD_01_dm01cel01       423G
         DATA_dm01_CD_02_dm01cel01       423G
         DATA_dm01_CD_03_dm01cel01       423G
         DATA_dm01_CD_04_dm01cel01       423G
         DATA_dm01_CD_05_dm01cel01       423G
         DATA_dm01_CD_06_dm01cel01       423G
         DATA_dm01_CD_07_dm01cel01       423G
         DATA_dm01_CD_08_dm01cel01       423G
         DATA_dm01_CD_09_dm01cel01       423G
         DATA_dm01_CD_10_dm01cel01       423G
         DATA_dm01_CD_11_dm01cel01       423G


The new grid disks size will be 423 GB + 50 GB = 473 GB.

Resize the DATA grid disks on all storage cells. On storage cell 1, the command would be:

[root@dm01cel01 ~]# cellcli
CellCLI: Release 12.1.2.1.1 - Production on Wed Jan 18 05:39:49 CST 2017

Copyright (c) 2007, 2013, Oracle.  All rights reserved.
Cell Efficiency Ratio: 7,004

CellCLI> alter grid disk DATA_dm01_CD_00_dm01CEL01, DATA_dm01_CD_01_dm01CEL01, DATA_dm01_CD_02_dm01CEL01, DATA_dm01_CD_03_dm01CEL01, DATA_dm01_CD_04_dm01CEL01, DATA_dm01_CD_05_dm01CEL01, DATA_dm01_CD_06_dm01CEL01, DATA_dm01_CD_07_dm01CEL01, DATA_dm01_CD_08_dm01CEL01, DATA_dm01_CD_09_dm01CEL01, DATA_dm01_CD_10_dm01CEL01, DATA_dm01_CD_11_dm01CEL01 size=484352M;
grid disk DATA_dm01_CD_00_dm01cel01 successfully altered
grid disk DATA_dm01_CD_01_dm01cel01 successfully altered
grid disk DATA_dm01_CD_02_dm01cel01 successfully altered
grid disk DATA_dm01_CD_03_dm01cel01 successfully altered
grid disk DATA_dm01_CD_04_dm01cel01 successfully altered
grid disk DATA_dm01_CD_05_dm01cel01 successfully altered
grid disk DATA_dm01_CD_06_dm01cel01 successfully altered
grid disk DATA_dm01_CD_07_dm01cel01 successfully altered
grid disk DATA_dm01_CD_08_dm01cel01 successfully altered
grid disk DATA_dm01_CD_09_dm01cel01 successfully altered
grid disk DATA_dm01_CD_10_dm01cel01 successfully altered
grid disk DATA_dm01_CD_11_dm01cel01 successfully altered

[root@dm01cel01 ~]# ssh dm01cel02
Last login: Wed Jan 18 05:22:46 2017 from dm01cel01
[root@dm01cel02 ~]# cellcli
CellCLI: Release 12.1.2.1.1 - Production on Wed Jan 18 05:41:01 CST 2017

Copyright (c) 2007, 2013, Oracle.  All rights reserved.
Cell Efficiency Ratio: 6,999

CellCLI> alter grid disk DATA_dm01_CD_00_dm01CEL02, DATA_dm01_CD_01_dm01CEL02, DATA_dm01_CD_02_dm01CEL02, DATA_dm01_CD_03_dm01CEL02, DATA_dm01_CD_04_dm01CEL02, DATA_dm01_CD_05_dm01CEL02, DATA_dm01_CD_06_dm01CEL02, DATA_dm01_CD_07_dm01CEL02, DATA_dm01_CD_08_dm01CEL02, DATA_dm01_CD_09_dm01CEL02, DATA_dm01_CD_10_dm01CEL02, DATA_dm01_CD_11_dm01CEL02 size=484352M;
grid disk DATA_dm01_CD_00_dm01cel02 successfully altered
grid disk DATA_dm01_CD_01_dm01cel02 successfully altered
grid disk DATA_dm01_CD_02_dm01cel02 successfully altered
grid disk DATA_dm01_CD_03_dm01cel02 successfully altered
grid disk DATA_dm01_CD_04_dm01cel02 successfully altered
grid disk DATA_dm01_CD_05_dm01cel02 successfully altered
grid disk DATA_dm01_CD_06_dm01cel02 successfully altered
grid disk DATA_dm01_CD_07_dm01cel02 successfully altered
grid disk DATA_dm01_CD_08_dm01cel02 successfully altered
grid disk DATA_dm01_CD_09_dm01cel02 successfully altered
grid disk DATA_dm01_CD_10_dm01cel02 successfully altered
grid disk DATA_dm01_CD_11_dm01cel02 successfully altered

[root@dm01cel02 ~]# ssh dm01cel03
Last login: Wed Jan 18 05:23:38 2017 from dm01cel01
[root@dm01cel03 ~]# cellcli
CellCLI: Release 12.1.2.1.1 - Production on Wed Jan 18 05:41:49 CST 2017

Copyright (c) 2007, 2013, Oracle.  All rights reserved.
Cell Efficiency Ratio: 7,599

CellCLI> alter grid disk DATA_dm01_CD_00_dm01CEL03, DATA_dm01_CD_01_dm01CEL03, DATA_dm01_CD_02_dm01CEL03, DATA_dm01_CD_03_dm01CEL03, DATA_dm01_CD_04_dm01CEL03, DATA_dm01_CD_05_dm01CEL03, DATA_dm01_CD_06_dm01CEL03, DATA_dm01_CD_07_dm01CEL03, DATA_dm01_CD_08_dm01CEL03, DATA_dm01_CD_09_dm01CEL03, DATA_dm01_CD_10_dm01CEL03, DATA_dm01_CD_11_dm01CEL03 size=484352M;
grid disk DATA_dm01_CD_00_dm01cel03 successfully altered
grid disk DATA_dm01_CD_01_dm01cel03 successfully altered
grid disk DATA_dm01_CD_02_dm01cel03 successfully altered
grid disk DATA_dm01_CD_03_dm01cel03 successfully altered
grid disk DATA_dm01_CD_04_dm01cel03 successfully altered
grid disk DATA_dm01_CD_05_dm01cel03 successfully altered
grid disk DATA_dm01_CD_06_dm01cel03 successfully altered
grid disk DATA_dm01_CD_07_dm01cel03 successfully altered
grid disk DATA_dm01_CD_08_dm01cel03 successfully altered
grid disk DATA_dm01_CD_09_dm01cel03 successfully altered
grid disk DATA_dm01_CD_10_dm01cel03 successfully altered
grid disk DATA_dm01_CD_11_dm01cel03 successfully altered

CellCLI> alter grid disk DATA_dm01_CD_00_dm01CEL04, DATA_dm01_CD_01_dm01CEL04, DATA_dm01_CD_02_dm01CEL04, DATA_dm01_CD_03_dm01CEL04, DATA_dm01_CD_04_dm01CEL04, DATA_dm01_CD_05_dm01CEL04, DATA_dm01_CD_06_dm01CEL04, DATA_dm01_CD_07_dm01CEL04, DATA_dm01_CD_08_dm01CEL04, DATA_dm01_CD_09_dm01CEL04, DATA_dm01_CD_10_dm01CEL04, DATA_dm01_CD_11_dm01CEL04 size=484352M;
grid disk DATA_dm01_CD_00_dm01cel04 successfully altered
grid disk DATA_dm01_CD_01_dm01cel04 successfully altered
grid disk DATA_dm01_CD_02_dm01cel04 successfully altered
grid disk DATA_dm01_CD_03_dm01cel04 successfully altered
grid disk DATA_dm01_CD_04_dm01cel04 successfully altered
grid disk DATA_dm01_CD_05_dm01cel04 successfully altered
grid disk DATA_dm01_CD_06_dm01cel04 successfully altered
grid disk DATA_dm01_CD_07_dm01cel04 successfully altered
grid disk DATA_dm01_CD_08_dm01cel04 successfully altered
grid disk DATA_dm01_CD_09_dm01cel04 successfully altered
grid disk DATA_dm01_CD_10_dm01cel04 successfully altered
grid disk DATA_dm01_CD_11_dm01cel04 successfully altered

CellCLI> alter grid disk DATA_dm01_CD_00_dm01CEL05, DATA_dm01_CD_01_dm01CEL05, DATA_dm01_CD_02_dm01CEL05, DATA_dm01_CD_03_dm01CEL05, DATA_dm01_CD_04_dm01CEL05, DATA_dm01_CD_05_dm01CEL05, DATA_dm01_CD_06_dm01CEL05, DATA_dm01_CD_07_dm01CEL05, DATA_dm01_CD_08_dm01CEL05, DATA_dm01_CD_09_dm01CEL05, DATA_dm01_CD_10_dm01CEL05, DATA_dm01_CD_11_dm01CEL05 size=484352M;
grid disk DATA_dm01_CD_00_dm01cel05 successfully altered
grid disk DATA_dm01_CD_01_dm01cel05 successfully altered
grid disk DATA_dm01_CD_02_dm01cel05 successfully altered
grid disk DATA_dm01_CD_03_dm01cel05 successfully altered
grid disk DATA_dm01_CD_04_dm01cel05 successfully altered
grid disk DATA_dm01_CD_05_dm01cel05 successfully altered
grid disk DATA_dm01_CD_06_dm01cel05 successfully altered
grid disk DATA_dm01_CD_07_dm01cel05 successfully altered
grid disk DATA_dm01_CD_08_dm01cel05 successfully altered
grid disk DATA_dm01_CD_09_dm01cel05 successfully altered
grid disk DATA_dm01_CD_10_dm01cel05 successfully altered

CellCLI> alter grid disk DATA_dm01_CD_00_dm01CEL06, DATA_dm01_CD_01_dm01CEL06, DATA_dm01_CD_02_dm01CEL06, DATA_dm01_CD_03_dm01CEL06, DATA_dm01_CD_04_dm01CEL06, DATA_dm01_CD_05_dm01CEL06, DATA_dm01_CD_06_dm01CEL06, DATA_dm01_CD_07_dm01CEL06, DATA_dm01_CD_08_dm01CEL06, DATA_dm01_CD_09_dm01CEL06, DATA_dm01_CD_10_dm01CEL06, DATA_dm01_CD_11_dm01CEL06 size=484352M;
grid disk DATA_dm01_CD_00_dm01cel06 successfully altered
grid disk DATA_dm01_CD_01_dm01cel06 successfully altered
grid disk DATA_dm01_CD_02_dm01cel06 successfully altered
grid disk DATA_dm01_CD_03_dm01cel06 successfully altered
grid disk DATA_dm01_CD_04_dm01cel06 successfully altered
grid disk DATA_dm01_CD_05_dm01cel06 successfully altered
grid disk DATA_dm01_CD_06_dm01cel06 successfully altered
grid disk DATA_dm01_CD_07_dm01cel06 successfully altered
grid disk DATA_dm01_CD_08_dm01cel06 successfully altered
grid disk DATA_dm01_CD_09_dm01cel06 successfully altered
grid disk DATA_dm01_CD_10_dm01cel06 successfully altered
grid disk DATA_dm01_CD_11_dm01cel06 successfully altered

CellCLI> alter grid disk DATA_dm01_CD_00_dm01CEL07, DATA_dm01_CD_01_dm01CEL07, DATA_dm01_CD_02_dm01CEL07, DATA_dm01_CD_03_dm01CEL07, DATA_dm01_CD_04_dm01CEL07, DATA_dm01_CD_05_dm01CEL07, DATA_dm01_CD_06_dm01CEL07, DATA_dm01_CD_07_dm01CEL07, DATA_dm01_CD_08_dm01CEL07, DATA_dm01_CD_09_dm01CEL07, DATA_dm01_CD_10_dm01CEL07, DATA_dm01_CD_11_dm01CEL07 size=484352M;
grid disk DATA_dm01_CD_00_dm01cel07 successfully altered
grid disk DATA_dm01_CD_01_dm01cel07 successfully altered
grid disk DATA_dm01_CD_02_dm01cel07 successfully altered
grid disk DATA_dm01_CD_03_dm01cel07 successfully altered
grid disk DATA_dm01_CD_04_dm01cel07 successfully altered
grid disk DATA_dm01_CD_05_dm01cel07 successfully altered
grid disk DATA_dm01_CD_06_dm01cel07 successfully altered
grid disk DATA_dm01_CD_07_dm01cel07 successfully altered
grid disk DATA_dm01_CD_08_dm01cel07 successfully altered
grid disk DATA_dm01_CD_09_dm01cel07 successfully altered
grid disk DATA_dm01_CD_10_dm01cel07 successfully altered
grid disk DATA_dm01_CD_11_dm01cel07 successfully altered

CellCLI> alter grid disk DATA_dm01_CD_00_dm01CEL08, DATA_dm01_CD_01_dm01CEL08, DATA_dm01_CD_02_dm01CEL08, DATA_dm01_CD_03_dm01CEL08, DATA_dm01_CD_04_dm01CEL08, DATA_dm01_CD_05_dm01CEL08, DATA_dm01_CD_06_dm01CEL08, DATA_dm01_CD_07_dm01CEL08, DATA_dm01_CD_08_dm01CEL08, DATA_dm01_CD_09_dm01CEL08, DATA_dm01_CD_10_dm01CEL08, DATA_dm01_CD_11_dm01CEL08 size=484352M;
grid disk DATA_dm01_CD_00_dm01cel08 successfully altered
grid disk DATA_dm01_CD_01_dm01cel08 successfully altered
grid disk DATA_dm01_CD_02_dm01cel08 successfully altered
grid disk DATA_dm01_CD_03_dm01cel08 successfully altered
grid disk DATA_dm01_CD_04_dm01cel08 successfully altered
grid disk DATA_dm01_CD_05_dm01cel08 successfully altered
grid disk DATA_dm01_CD_06_dm01cel08 successfully altered
grid disk DATA_dm01_CD_07_dm01cel08 successfully altered
grid disk DATA_dm01_CD_08_dm01cel08 successfully altered
grid disk DATA_dm01_CD_09_dm01cel08 successfully altered
grid disk DATA_dm01_CD_10_dm01cel08 successfully altered
grid disk DATA_dm01_CD_11_dm01cel08 successfully altered

CellCLI> alter grid disk DATA_dm01_CD_00_dm01CEL09, DATA_dm01_CD_01_dm01CEL09, DATA_dm01_CD_02_dm01CEL09, DATA_dm01_CD_03_dm01CEL09, DATA_dm01_CD_04_dm01CEL09, DATA_dm01_CD_05_dm01CEL09, DATA_dm01_CD_06_dm01CEL09, DATA_dm01_CD_07_dm01CEL09, DATA_dm01_CD_08_dm01CEL09, DATA_dm01_CD_09_dm01CEL09, DATA_dm01_CD_10_dm01CEL09, DATA_dm01_CD_11_dm01CEL09 size=484352M;
grid disk DATA_dm01_CD_00_dm01cel09 successfully altered
grid disk DATA_dm01_CD_01_dm01cel09 successfully altered
grid disk DATA_dm01_CD_02_dm01cel09 successfully altered
grid disk DATA_dm01_CD_03_dm01cel09 successfully altered
grid disk DATA_dm01_CD_04_dm01cel09 successfully altered
grid disk DATA_dm01_CD_05_dm01cel09 successfully altered
grid disk DATA_dm01_CD_06_dm01cel09 successfully altered
grid disk DATA_dm01_CD_07_dm01cel09 successfully altered
grid disk DATA_dm01_CD_08_dm01cel09 successfully altered
grid disk DATA_dm01_CD_09_dm01cel09 successfully altered
grid disk DATA_dm01_CD_10_dm01cel09 successfully altered
grid disk DATA_dm01_CD_11_dm01cel09 successfully altered

CellCLI> alter grid disk DATA_dm01_CD_00_dm01CEL10, DATA_dm01_CD_01_dm01CEL10, DATA_dm01_CD_02_dm01CEL10, DATA_dm01_CD_03_dm01CEL10, DATA_dm01_CD_04_dm01CEL10, DATA_dm01_CD_05_dm01CEL10, DATA_dm01_CD_06_dm01CEL10, DATA_dm01_CD_07_dm01CEL10, DATA_dm01_CD_08_dm01CEL10, DATA_dm01_CD_09_dm01CEL10, DATA_dm01_CD_10_dm01CEL10, DATA_dm01_CD_11_dm01CEL10 size=484352M;
grid disk DATA_dm01_CD_00_dm01cel10 successfully altered
grid disk DATA_dm01_CD_01_dm01cel10 successfully altered
grid disk DATA_dm01_CD_02_dm01cel10 successfully altered
grid disk DATA_dm01_CD_03_dm01cel10 successfully altered
grid disk DATA_dm01_CD_04_dm01cel10 successfully altered
grid disk DATA_dm01_CD_05_dm01cel10 successfully altered
grid disk DATA_dm01_CD_06_dm01cel10 successfully altered
grid disk DATA_dm01_CD_07_dm01cel10 successfully altered
grid disk DATA_dm01_CD_08_dm01cel10 successfully altered
grid disk DATA_dm01_CD_09_dm01cel10 successfully altered
grid disk DATA_dm01_CD_10_dm01cel10 successfully altered
grid disk DATA_dm01_CD_11_dm01cel10 successfully altered

CellCLI> alter grid disk DATA_dm01_CD_00_dm01CEL11, DATA_dm01_CD_01_dm01CEL11, DATA_dm01_CD_02_dm01CEL11, DATA_dm01_CD_03_dm01CEL11, DATA_dm01_CD_04_dm01CEL11, DATA_dm01_CD_05_dm01CEL11, DATA_dm01_CD_06_dm01CEL11, DATA_dm01_CD_07_dm01CEL11, DATA_dm01_CD_08_dm01CEL11, DATA_dm01_CD_09_dm01CEL11, DATA_dm01_CD_10_dm01CEL11, DATA_dm01_CD_11_dm01CEL11 size=484352M;
grid disk DATA_dm01_CD_00_dm01cel11 successfully altered
grid disk DATA_dm01_CD_01_dm01cel11 successfully altered
grid disk DATA_dm01_CD_02_dm01cel11 successfully altered
grid disk DATA_dm01_CD_03_dm01cel11 successfully altered
grid disk DATA_dm01_CD_04_dm01cel11 successfully altered
grid disk DATA_dm01_CD_05_dm01cel11 successfully altered
grid disk DATA_dm01_CD_06_dm01cel11 successfully altered
grid disk DATA_dm01_CD_07_dm01cel11 successfully altered
grid disk DATA_dm01_CD_08_dm01cel11 successfully altered
grid disk DATA_dm01_CD_09_dm01cel11 successfully altered
grid disk DATA_dm01_CD_10_dm01cel11 successfully altered
grid disk DATA_dm01_CD_11_dm01cel11 successfully altered

CellCLI> alter grid disk DATA_dm01_CD_00_dm01CEL12, DATA_dm01_CD_01_dm01CEL12, DATA_dm01_CD_02_dm01CEL12, DATA_dm01_CD_03_dm01CEL12, DATA_dm01_CD_04_dm01CEL12, DATA_dm01_CD_05_dm01CEL12, DATA_dm01_CD_06_dm01CEL12, DATA_dm01_CD_07_dm01CEL12, DATA_dm01_CD_08_dm01CEL12, DATA_dm01_CD_09_dm01CEL12, DATA_dm01_CD_10_dm01CEL12, DATA_dm01_CD_11_dm01CEL12 size=484352M;
grid disk DATA_dm01_CD_00_dm01cel12 successfully altered
grid disk DATA_dm01_CD_01_dm01cel12 successfully altered
grid disk DATA_dm01_CD_02_dm01cel12 successfully altered
grid disk DATA_dm01_CD_03_dm01cel12 successfully altered
grid disk DATA_dm01_CD_04_dm01cel12 successfully altered
grid disk DATA_dm01_CD_05_dm01cel12 successfully altered
grid disk DATA_dm01_CD_06_dm01cel12 successfully altered
grid disk DATA_dm01_CD_07_dm01cel12 successfully altered
grid disk DATA_dm01_CD_08_dm01cel12 successfully altered
grid disk DATA_dm01_CD_09_dm01cel12 successfully altered
grid disk DATA_dm01_CD_10_dm01cel12 successfully altered
grid disk DATA_dm01_CD_11_dm01cel12 successfully altered

CellCLI> alter grid disk DATA_dm01_CD_00_dm01CEL13, DATA_dm01_CD_01_dm01CEL13, DATA_dm01_CD_02_dm01CEL13, DATA_dm01_CD_03_dm01CEL13, DATA_dm01_CD_04_dm01CEL13, DATA_dm01_CD_05_dm01CEL13, DATA_dm01_CD_06_dm01CEL13, DATA_dm01_CD_07_dm01CEL13, DATA_dm01_CD_08_dm01CEL13, DATA_dm01_CD_09_dm01CEL13, DATA_dm01_CD_10_dm01CEL13, DATA_dm01_CD_11_dm01CEL13 size=484352M;
grid disk DATA_dm01_CD_00_dm01cel13 successfully altered
grid disk DATA_dm01_CD_01_dm01cel13 successfully altered
grid disk DATA_dm01_CD_02_dm01cel13 successfully altered
grid disk DATA_dm01_CD_03_dm01cel13 successfully altered
grid disk DATA_dm01_CD_04_dm01cel13 successfully altered
grid disk DATA_dm01_CD_05_dm01cel13 successfully altered
grid disk DATA_dm01_CD_06_dm01cel13 successfully altered
grid disk DATA_dm01_CD_07_dm01cel13 successfully altered
grid disk DATA_dm01_CD_08_dm01cel13 successfully altered
grid disk DATA_dm01_CD_09_dm01cel13 successfully altered
grid disk DATA_dm01_CD_10_dm01cel13 successfully altered
grid disk DATA_dm01_CD_11_dm01cel13 successfully altered

CellCLI> alter grid disk DATA_dm01_CD_00_dm01CEL14, DATA_dm01_CD_01_dm01CEL14, DATA_dm01_CD_02_dm01CEL14, DATA_dm01_CD_03_dm01CEL14, DATA_dm01_CD_04_dm01CEL14, DATA_dm01_CD_05_dm01CEL14, DATA_dm01_CD_06_dm01CEL14, DATA_dm01_CD_07_dm01CEL14, DATA_dm01_CD_08_dm01CEL14, DATA_dm01_CD_09_dm01CEL14, DATA_dm01_CD_10_dm01CEL14, DATA_dm01_CD_11_dm01CEL14 size=484352M;
grid disk DATA_dm01_CD_00_dm01cel14 successfully altered
grid disk DATA_dm01_CD_01_dm01cel14 successfully altered
grid disk DATA_dm01_CD_02_dm01cel14 successfully altered
grid disk DATA_dm01_CD_03_dm01cel14 successfully altered
grid disk DATA_dm01_CD_04_dm01cel14 successfully altered
grid disk DATA_dm01_CD_05_dm01cel14 successfully altered
grid disk DATA_dm01_CD_06_dm01cel14 successfully altered
grid disk DATA_dm01_CD_07_dm01cel14 successfully altered
grid disk DATA_dm01_CD_08_dm01cel14 successfully altered
grid disk DATA_dm01_CD_09_dm01cel14 successfully altered
grid disk DATA_dm01_CD_10_dm01cel14 successfully altered
grid disk DATA_dm01_CD_11_dm01cel14 successfully altered

7. Verify the new size

CellCLI> list grid disk where name like 'DATA.*' attributes name, size
         DATA_dm01_CD_00_dm01cel14       473G
         DATA_dm01_CD_01_dm01cel14       473G
         DATA_dm01_CD_02_dm01cel14       473G
         DATA_dm01_CD_03_dm01cel14       473G
         DATA_dm01_CD_04_dm01cel14       473G
         DATA_dm01_CD_05_dm01cel14       473G
         DATA_dm01_CD_06_dm01cel14       473G
         DATA_dm01_CD_07_dm01cel14       473G
         DATA_dm01_CD_08_dm01cel14       473G
         DATA_dm01_CD_09_dm01cel14       473G
         DATA_dm01_CD_10_dm01cel14       473G
         DATA_dm01_CD_11_dm01cel14       473G


8. Increase size of DATA disks in ASM

SQL> alter diskgroup DATA_dm01 resize all rebalance power 32;

Diskgroup altered.


Note that there was no need to specify the new disks size, as ASM will get that from the grid disks. The rebalance clause is optional.

The command will trigger the rebalance operation for disk group DATA.

Monitor the rebalance with the following command:

SQL> set lines 200
SQL> set pages 200
SQL> select * from gv$asm_operation;

no rows selected


Once the command returns "no rows selected", the rebalance would have completed and all disks in disk group DATA should show new size:

SQL> select name, total_mb/1024 "GB" from v$asm_disk_stat where name like 'DATA%';

NAME                                   GB
------------------------------ ----------
DATA_dm01_CD_08_dm01CEL01             473
DATA_dm01_CD_01_dm01CEL01             473
DATA_dm01_CD_07_dm01CEL01             473
DATA_dm01_CD_09_dm01CEL01             473
DATA_dm01_CD_04_dm01CEL01             473
DATA_dm01_CD_05_dm01CEL01             473
DATA_dm01_CD_10_dm01CEL01             473
DATA_dm01_CD_03_dm01CEL01             473
DATA_dm01_CD_02_dm01CEL01             423
DATA_dm01_CD_11_dm01CEL01             473
DATA_dm01_CD_06_dm01CEL01             473
DATA_dm01_CD_00_dm01CEL01             473
...
DATA_dm01_CD_03_dm01CEL14             473
DATA_dm01_CD_08_dm01CEL14             473
DATA_dm01_CD_00_dm01CEL14             473
DATA_dm01_CD_05_dm01CEL14             473
DATA_dm01_CD_09_dm01CEL14             473
DATA_dm01_CD_02_dm01CEL14             473
DATA_dm01_CD_07_dm01CEL14             473
DATA_dm01_CD_10_dm01CEL14             473
DATA_dm01_CD_01_dm01CEL14             473
DATA_dm01_CD_11_dm01CEL14             473
DATA_dm01_CD_04_dm01CEL14             473
DATA_dm01_CD_06_dm01CEL14             473

168 rows selected.


Conclusion

In this article we have learned how to resize ASM disk in Exadata Database. If there is free space in Exadata cell disks, increasing the disk group size can be accomplished in two steps - grid disk size increase on all storage cells followed by the disk size increase in ASM. This requires a single ASM rebalance operation. If there is no free space in celldisks, some space may be freed up from other disk group. To reduce the size, first the ASM disk size is reduced and then reduced the grid disks size. To increase the size, first increase the grid disks size and the increase the ASM disk size.

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