Oracle ASM Advanced Tranning 一 —— Configuration of Devices for ASM
日期：2014-05-16 浏览次数：20347 次
Oracle ASM Advanced Tranning 1 —— Configuration of Devices for ASM
Create a directory to hold the files to be used as ASM devices
Create the files to be used as Asm devices
Connect to root and check if there are loop devices
As root create the loop devices
Bind the loop devices to raw devices
Part 1 : Configure devices for ASM using file system files and loop devices
Check the amount of space available on file system
[root@vasm ~]# df -TH Filesystem Type Size Used Avail Use% Mounted on /dev/sda3 ext3 46G 6.3G 38G 15% / /dev/sda1 ext3 200M 23M 167M 12% /boot tmpfs tmpfs 2.1G 0 2.1G 0% /dev/shm /dev/sr0 iso9660 3.9G 3.9G 0 100% /media/disk
Create a directory to hold the files to be used as ASM devices
[oracle@vasm ~]$ mkdir -p /u01/app/asm_loop_devices [oracle@vasm ~]$ ls -l /u01/app total 8 drwxr-xr-x 2 oracle oinstall 4096 Feb 20 09:06 asm_loop_devices/ drwxr-xr-x 5 oracle oinstall 4096 Feb 19 15:59 oracle/
Create the files to be used as Asm devices
[oracle@vasm ~]$ cd /u01/app/asm_loop_devices [oracle@vasm asm_loop_devices]$ dd if=/dev/zero of=/u01/app/asm_loop_devices/fs_dsk1 bs=1M count=500 500+0 records in 500+0 records out 524288000 bytes (524 MB) copied, 0.79403 seconds, 660 MB/s [oracle@vasm asm_loop_devices]$ dd if=/dev/zero of=/u01/app/asm_loop_devices/fs_dsk2 bs=1M count=500 500+0 records in 500+0 records out 524288000 bytes (524 MB) copied, 0.864626 seconds, 606 MB/s [oracle@vasm asm_loop_devices]$ dd if=/dev/zero of=/u01/app/asm_loop_devices/fs_dsk3 bs=1M count=500 500+0 records in 500+0 records out 524288000 bytes (524 MB) copied, 7.32695 seconds, 71.6 MB/s [oracle@vasm asm_loop_devices]$ dd if=/dev/zero of=/u01/app/asm_loop_devices/fs_dsk4 bs=1M count=500 500+0 records in 500+0 records out 524288000 bytes (524 MB) copied, 3.04805 seconds, 172 MB/s [oracle@vasm asm_loop_devices]$ ls -ltrh total 2.0G -rw-r--r-- 1 oracle oinstall 500M Feb 20 09:07 fs_dsk1 -rw-r--r-- 1 oracle oinstall 500M Feb 20 09:07 fs_dsk2 -rw-r--r-- 1 oracle oinstall 500M Feb 20 09:08 fs_dsk3 -rw-r--r-- 1 oracle oinstall 500M Feb 20 09:08 fs_dsk4 [oracle@vasm asm_loop_devices]$ pwd /u01/app/asm_loop_devices
Connect to root and check if there are loop devices
[oracle@vasm asm_loop_devices]$ su - root Password: [root@vasm ~]# raw -qa [root@vasm ~]#
As root create the loop devices
[root@vasm ~]# losetup /dev/loop1 /u01/app/asm_loop_devices/fs_dsk1 [root@vasm ~]# losetup /dev/loop2 /u01/app/asm_loop_devices/fs_dsk2 [root@vasm ~]# losetup /dev/loop3 /u01/app/asm_loop_devices/fs_dsk3 [root@vasm ~]# losetup /dev/loop4 /u01/app/asm_loop_devices/fs_dsk4
Bind the loop devices to raw devices
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