如何创建ASM磁盘?
1、添加一块虚拟磁盘
2、开启虚拟机，查看新增磁盘
[root@rhels5532 ~]# fdisk -l Disk /dev/sda: 32.2 GB, 32212254720 bytes 255 heads, 63 sectors/track, 3916 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sda1 * 1 3393 27254241 83 Linux /dev/sda2 3394 3915 4192965 82 Linux swap / Solaris Disk /dev/sdb: 19.3 GB, 19327352832 bytes 255 heads, 63 sectors/track, 2349 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Disk /dev/sdb doesn't contain a valid partition table [root@rhels5532 ~]#
3、磁盘格式化
[root@rhels5532 ~]# fdisk /dev/sdb 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 2349. 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): p Disk /dev/sdb: 19.3 GB, 19327352832 bytes 255 heads, 63 sectors/track, 2349 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System Command (m for help): n Command action e extended p primary partition (1-4) p Partition number (1-4): 1 First cylinder (1-2349, default 1): Using default value 1 Last cylinder or +size or +sizeM or +sizeK (1-2349, default 2349): +1g Command (m for help): p Disk /dev/sdb: 19.3 GB, 19327352832 bytes 255 heads, 63 sectors/track, 2349 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sdb1 1 123 987966 83 Linux Command (m for help): n Command action e extended p primary partition (1-4) p Partition number (1-4): 2 First cylinder (124-2349, default 124): Using default value 124 Last cylinder or +size or +sizeM or +sizeK (124-2349, default 2349): +1g Command (m for help): p Disk /dev/sdb: 19.3 GB, 19327352832 bytes 255 heads, 63 sectors/track, 2349 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sdb1 1 123 987966 83 Linux /dev/sdb2 124 246 987997+ 83 Linux Command (m for help): n Command action e extended p primary partition (1-4) p Partition number (1-4): 3 First cylinder (247-2349, default 247): Using default value 247 Last cylinder or +size or +sizeM or +sizeK (247-2349, default 2349): +1g Command (m for help): p Disk /dev/sdb: 19.3 GB, 19327352832 bytes 255 heads, 63 sectors/track, 2349 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sdb1 1 123 987966 83 Linux /dev/sdb2 124 246 987997+ 83 Linux /dev/sdb3 247 369 987997+ 83 Linux Command (m for help): n Command action e extended p primary partition (1-4) e Selected partition 4 First cylinder (370-2349, default 370): Using default value 370 Last cylinder or +size or +sizeM or +sizeK (370-2349, default 2349): Using default value 2349 Command (m for help): p Disk /dev/sdb: 19.3 GB, 19327352832 bytes 255 heads, 63 sectors/track, 2349 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sdb1 1 123 987966 83 Linux /dev/sdb2 124 246 987997+ 83 Linux /dev/sdb3 247 369 987997+ 83 Linux /dev/sdb4 370 2349 15904350 5 Extended Command (m for help): n First cylinder (370-2349, default 370): Using default value 370 Last cylinder or +size or +sizeM or +sizeK (370-2349, default 2349): +3g Command (m for help): n First cylinder (736-2349, default 736): Using default value 736 Last cylinder or +size or +sizeM or +sizeK (736-2349, default 2349): +3g Command (m for help): p Disk /dev/sdb: 19.3 GB, 19327352832 bytes 255 heads, 63 sectors/track, 2349 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sdb1 1 123 987966 83 Linux /dev/sdb2 124 246 987997+ 83 Linux /dev/sdb3 247 369 987997+ 83 Linux /dev/sdb4 370 2349 15904350 5 Extended /dev/sdb5 370 735 2939863+ 83 Linux /dev/sdb6 736 1101 2939863+ 83 Linux Command (m for help): n First cylinder (1102-2349, default 1102): Using default value 1102 Last cylinder or +size or +sizeM or +sizeK (1102-2349, default 2349): +3g Command (m for help): p Disk /dev/sdb: 19.3 GB, 19327352832 bytes 255 heads, 63 sectors/track, 2349 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sdb1 1 123 987966 83 Linux /dev/sdb2 124 246 987997+ 83 Linux /dev/sdb3 247 369 987997+ 83 Linux /dev/sdb4 370 2349 15904350 5 Extended /dev/sdb5 370 735 2939863+ 83 Linux /dev/sdb6 736 1101 2939863+ 83 Linux /dev/sdb7 1102 1467 2939863+ 83 Linux Command (m for help): n First cylinder (1468-2349, default 1468): Using default value 1468 Last cylinder or +size or +sizeM or +sizeK (1468-2349, default 2349): +3g Command (m for help): n First cylinder (1834-2349, default 1834): Using default value 1834 Last cylinder or +size or +sizeM or +sizeK (1834-2349, default 2349): +3g Command (m for help): p Disk /dev/sdb: 19.3 GB, 19327352832 bytes 255 heads, 63 sectors/track, 2349 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sdb1 1 123 987966 83 Linux /dev/sdb2 124 246 987997+ 83 Linux /dev/sdb3 247 369 987997+ 83 Linux /dev/sdb4 370 2349 15904350 5 Extended /dev/sdb5 370 735 2939863+ 83 Linux /dev/sdb6 736 1101 2939863+ 83 Linux /dev/sdb7 1102 1467 2939863+ 83 Linux /dev/sdb8 1468 1833 2939863+ 83 Linux /dev/sdb9 1834 2199 2939863+ 83 Linux Command (m for help): n First cylinder (2200-2349, default 2200): Using default value 2200 Last cylinder or +size or +sizeM or +sizeK (2200-2349, default 2349): +1g Command (m for help): p Disk /dev/sdb: 19.3 GB, 19327352832 bytes 255 heads, 63 sectors/track, 2349 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sdb1 1 123 987966 83 Linux /dev/sdb2 124 246 987997+ 83 Linux /dev/sdb3 247 369 987997+ 83 Linux /dev/sdb4 370 2349 15904350 5 Extended /dev/sdb5 370 735 2939863+ 83 Linux /dev/sdb6 736 1101 2939863+ 83 Linux /dev/sdb7 1102 1467 2939863+ 83 Linux /dev/sdb8 1468 1833 2939863+ 83 Linux /dev/sdb9 1834 2199 2939863+ 83 Linux /dev/sdb10 2200 2322 987966 83 Linux Command (m for help): w The partition table has been altered! Calling ioctl() to re-read partition table. Syncing disks. [root@rhels5532 ~]#
4、查看格式化后的磁盘信息
[root@rhels5532 ~]# fdisk -l Disk /dev/sda: 32.2 GB, 32212254720 bytes 255 heads, 63 sectors/track, 3916 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sda1 * 1 3393 27254241 83 Linux /dev/sda2 3394 3915 4192965 82 Linux swap / Solaris Disk /dev/sdb: 19.3 GB, 19327352832 bytes 255 heads, 63 sectors/track, 2349 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sdb1 1 123 987966 83 Linux /dev/sdb2 124 246 987997+ 83 Linux /dev/sdb3 247 369 987997+ 83 Linux /dev/sdb4 370 2349 15904350 5 Extended /dev/sdb5 370 735 2939863+ 83 Linux /dev/sdb6 736 1101 2939863+ 83 Linux /dev/sdb7 1102 1467 2939863+ 83 Linux /dev/sdb8 1468 1833 2939863+ 83 Linux /dev/sdb9 1834 2199 2939863+ 83 Linux /dev/sdb10 2200 2322 987966 83 Linux [root@rhels5532 ~]#
5、配置ASMLib驱动
