要增加磁盤的磁盤組為：DATA

要增加的磁盤為： /dev/sde1

在第一個(gè)節(jié)點(diǎn)上:
[root@rac1 ~]# fdisk /dev/sde
Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel
Building a new DOS disklabel. Changes will remain in memory only,
until you decide to write them. After that, of course, the previous
content won't be recoverable.

Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)

Command (m for help): n
Command action
?? e?? extended
?? p?? primary partition (1-4)
p
Partition number (1-4): 1
First cylinder (1-391, default 1):
Using default value 1
Last cylinder or +size or +sizeM or +sizeK (1-391, default 391):
Using default value 391

Command (m for help): w
The partition table has been altered!

Calling ioctl() to re-read partition table.

WARNING: Re-reading the partition table failed with error 16: Device or resource busy.
The kernel still uses the old table.
The new table will be used at the next reboot.
Syncing disks.

[root@rac1 ~]# ll /dev/oracleasm/disks
total 0
brw-rw---- 1 grid oinstall 8, 49 Jan 20 16:45 CRS
brw-rw---- 1 grid oinstall 8, 17 Jan 20 16:45 DATA1
brw-rw---- 1 grid oinstall 8, 33 Jan 20 16:45 DATA2

[root@rac1 ~]# /etc/init.d/oracleasm createdisk DATA3 /dev/sde1
Marking disk "DATA3" as an ASM disk:?????????????????????? [? OK? ]
[root@rac1 ~]# ll /dev/oracleasm/disks
total 0
brw-rw---- 1 grid oinstall 8, 49 Jan 20 16:47 CRS
brw-rw---- 1 grid oinstall 8, 17 Jan 20 16:47 DATA1
brw-rw---- 1 grid oinstall 8, 33 Jan 20 16:47 DATA2
brw-rw---- 1 grid oinstall 8, 65 Jan 20 16:47 DATA3

在第二個(gè)節(jié)點(diǎn):
[root@rac2 ~]#? /etc/init.d/oracleasm scandisks
Scanning the system for Oracle ASMLib disks:?????????????? [? OK? ]
[root@rac2 ~]#? ll /dev/oracleasm/disks/
total 0
brw-rw---- 1 grid oinstall 8, 49 Jan 20 16:54 CRS
brw-rw---- 1 grid oinstall 8, 17 Jan 20 16:54 DATA1
brw-rw---- 1 grid oinstall 8, 33 Jan 20 16:54 DATA2
brw-rw---- 1 grid oinstall 8, 65 Jan 20 16:53 DATA3

[root@rac1 ~]# su - grid
[grid@rac1 ~]$ export ORACLE_SID=+ASM1
[grid@rac1 ~]$
[grid@rac1 ~]$
[grid@rac1 ~]$ sqlplus /nolog
SQL> conn / as sysasm

SQL> alter diskgroup DATA add disk '/dev/oracleasm/disks/DATA3' name DATA_0002;

Diskgroup altered.

總結(jié)

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