oracle11g查看asm磁盘组中有哪些设备

oracle11g查看asm磁盘组中有哪些设备

磁盘组操作，grid用户下：
sqlplus /nolog

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SQL> conn / as sysasm

查询现有磁盘组及磁盘信息：
SQL> select group_number gno,name,state,type,total_mb,free_mb,required_mirror_free_mb rmfmb,usable_file_mb ufmb from v$asm_diskgroup;

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GNO NAME STATE TYPE TOTAL_MB FREE_MB RMFMB UFMB
---------- ------------------------------ ------------ ---------- ---------- ---------- ----------
1 DG1 MOUNTED NORMAL 4076 575 879 -152
2 DG2 MOUNTED NORMAL 4076 3531 139 1696

SQL>
SQL> col name format a10
SQL> col fgno format a20
SQL> select group_number gno,name,failgroup fgno,state,total_mb,free_mb,header_status from v$asm_disk;

GNO NAME FGNO STATE TOTAL_MB FREE_MB HEADER_STATUS
---------- ---------- -------------------- ---------------- ---------- ---------- ------------------------
0 NORMAL 0 0 PROVISIONED
0 NORMAL 0 0 PROVISIONED
1 VOL1 VOL1 NORMAL 1019 141 MEMBER
1 VOL2 VOL2 NORMAL 1019 144 MEMBER
1 VOL3 VOL3 NORMAL 1019 140 MEMBER
1 VOL4 VOL4 NORMAL 1019 150 MEMBER
2 VOL5 VOL5 NORMAL 1019 880 MEMBER
2 VOL6 VOL6 NORMAL 1019 883 MEMBER
2 VOL7 VOL7 NORMAL 1019 885 MEMBER
2 VOL8 VOL8 NORMAL 1019 883 MEMBER

10 rows selected.

--创建磁盘组
SQL> create diskgroup dg3 normal redundancy disk 'ORCL:VOL9','ORCL:VOL10';

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Diskgroup created.

或：
SQL> create diskgroup dg3 normal redundancy disk 'ORCL:VOL9' disk 'ORCL:VOL10';

Diskgroup created.

--添加磁盘

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SQL> alter diskgroup dg1 add disk 'ORCL:VOL9';

Diskgroup altered.

--删除磁盘

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SQL> alter diskgroup dg1 drop disk VOL9;

Diskgroup altered.

SQL> select group_number gno,name,failgroup fgno,state,total_mb,free_mb,header_status from v$asm_disk;

GNO NAME FGNO STATE TOTAL_MB FREE_MB HEADER_STATUS
---------- ------------------------------ -------------------- ---------------- ---------- ---------- ------------------------
0 NORMAL 0 0 FORMER
1 VOL1 VOL1 NORMAL 1019 284 MEMBER
1 VOL2 VOL2 NORMAL 1019 286 MEMBER
1 VOL3 VOL3 NORMAL 1019 284 MEMBER
1 VOL4 VOL4 NORMAL 1019 287 MEMBER
2 VOL5 VOL5 NORMAL 1019 880 MEMBER
2 VOL6 VOL6 NORMAL 1019 883 MEMBER
2 VOL7 VOL7 NORMAL 1019 885 MEMBER
2 VOL8 VOL8 NORMAL 1019 883 MEMBER
1 VOL9 VOL9 DROpPING 1019 451 MEMBER

10 rows selected.

--取消删除

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alter diskgroup dg1 undrop disks;

--调整大小

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ALTER DISKGROUP DG1 RESIZE DISK VOL4 SIZE 1024 M

--unmount和mount磁盘组

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SQL> alter diskgroup dg3 dismount;

Diskgroup altered.

SQL> select group_number gno,name,state,type,total_mb,free_mb,required_mirror_free_mb rmfmb,usable_file_mb ufmb from v$asm_diskgroup;

GNO NAME STATE TYPE TOTAL_MB FREE_MB RMFMB UFMB
---------- ------------------------------ ---------------------- ------------------------------ ---------- ---------- ---------- ----------
1 DG1 MOUNTED NORMAL 4076 575 879 -152
2 DG2 MOUNTED NORMAL 4076 3531 139 1696
0 DG3 DISMOUNTED

SQL> alter diskgroup dg3 mount;

Diskgroup altered.