1、物理机挂在要添加的磁盘，虚拟机格式化虚拟硬盘
略
2、登录服务器：fdisk -l
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[root@node2 ~]# fdisk -l Disk /dev/sda: 107.3 GB, 107374182400 bytes 255 heads, 63 sectors/track, 13054 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sda1 * 1 10965 88076331 83 Linux /dev/sda2 10966 13054 16779892+ 82 Linux swap / Solaris Disk /dev/sdb: 3221 MB, 3221225472 bytes 255 heads, 63 sectors/track, 391 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sdb1 1 391 3140676 83 Linux Disk /dev/sdc: 3221 MB, 3221225472 bytes 255 heads, 63 sectors/track, 391 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sdc1 1 391 3140676 83 Linux Disk /dev/sdd: 107.3 GB, 107374182400 bytes 255 heads, 63 sectors/track, 13054 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sdd1 1 13054 104856223+ 83 Linux Disk /dev/sde: 107.3 GB, 107374182400 bytes 255 heads, 63 sectors/track, 13054 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sde1 1 13054 104856223+ 83 Linux Disk /dev/sdf: 107.3 GB, 107374182400 bytes 255 heads, 63 sectors/track, 13054 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sdf1 1 13054 104856223+ 83 Linux Disk /dev/sdg: 107.3 GB, 107374182400 bytes 255 heads, 63 sectors/track, 13054 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sdg1 1 13054 104856223+ 83 Linux Disk /dev/sdh: 107.3 GB, 107374182400 bytes 255 heads, 63 sectors/track, 13054 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Disk /dev/sdh doesn't contain a valid partition table Disk /dev/sdi: 107.3 GB, 107374182400 bytes 255 heads, 63 sectors/track, 13054 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Disk /dev/sdi doesn't contain a valid partition table |
3、格式化/dev/sdh和/dev/sdi
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[root@node2 ~]# fdisk /dev/sdh 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. The number of cylinders for this disk is set to 13054. There is nothing wrong with that, but this is larger than 1024, and could in certain setups cause problems with: 1) software that runs at boot time (e.g., old versions of LILO) 2) booting and partitioning software from other OSs (e.g., DOS FDISK, OS/2 FDISK) 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 (1-13054, default 1): Using default value 1 Last cylinder or +size or +sizeM or +sizeK (1-13054, default 13054): Using default value 13054 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@node2 ~]# |
4、创建asm磁盘
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[root@node1 ~]# oracleasm listdisks VOL1 VOL2 VOL3 VOL4 VOL5 VOL6 |
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[root@node2 ~]# oracleasm createdisk VOL7 /dev/sdh1 Writing disk header: done Instantiating disk: done [root@node2 ~]# oracleasm createdisk VOL8 /dev/sdi1 Writing disk header: done Instantiating disk: done [root@node2 ~]# [root@node2 ~]# [root@node2 ~]# [root@node2 ~]# oracleasm listdisks VOL1 VOL2 VOL3 VOL4 VOL5 VOL6 VOL7 VOL8 [root@node2 ~]# |
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[root@node1 ~]# oracleasm scandisks Reloading disk partitions: done Cleaning any stale ASM disks... Scanning system for ASM disks... Instantiating disk "VOL7" Instantiating disk "VOL8" [root@node1 ~]# oracleasm listdisks VOL1 VOL2 VOL3 VOL4 VOL5 VOL6 VOL7 VOL8 |
5、asmca添加磁盘到磁盘组data
略
6、asm自平衡
