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Old 06-23-2012, 01:17 AM   #1
kt1d
LQ Newbie
 
Registered: Jun 2012
Posts: 1

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Unhappy How to Configure the ASM disks with single instance Database


I tried to configure the ASM disks on my linux box with these steps:

Stage 1
--From the main Terminal, switch user to root

[****@localhost Desktop]$ su root
Password:

Stage 2
-- From The Root user, make directory for ASM Disk

[root@localhost Desktop]# mkdir /asmdisk

Stage 3
-- Allocate 4 Disk Spaces to the ASM Disk with the Directory as shown

[root@localhost Desktop]# dd if=/dev/zero of=/asmdisk/disk1 bs=1024k count=500
500+0 records in
500+0 records out
524288000 bytes (524 MB) copied, 14.7428 s, 35.6 MB/s
[root@localhost Desktop]# dd if=/dev/zero of=/asmdisk/disk2 bs=1024k count=500
500+0 records in
500+0 records out
524288000 bytes (524 MB) copied, 14.1399 s, 37.1 MB/s
[root@localhost Desktop]# dd if=/dev/zero of=/asmdisk/disk3 bs=1024k count=500
500+0 records in
500+0 records out
524288000 bytes (524 MB) copied, 14.1355 s, 37.1 MB/s
[root@localhost Desktop]# dd if=/dev/zero of=/asmdisk/disk4 bs=1024k count=500
500+0 records in
500+0 records out
524288000 bytes (524 MB) copied, 14.2123 s, 36.9 MB/s


Stage 4
-- Allocate 4 loops Spaces in the ASM Disks earlier created with the Directory as shown


[root@localhost Desktop]# /sbin/losetup dev/loop1 /asmdisk/disk1
dev/loop1: No such file or directory
[root@localhost Desktop]# /sbin/losetup /dev/loop1 /asmdisk/disk1
[root@localhost Desktop]# /sbin/losetup /dev/loop2 /asmdisk/disk2
[root@localhost Desktop]# /sbin/losetup /dev/loop3 /asmdisk/disk3
[root@localhost Desktop]# /sbin/losetup /dev/loop4 /asmdisk/disk4


Stage 5
-- Allocate 4 raw Spaces in the 4 loop spaces in the ASM Disks earlier created with the Directory as shown

[root@localhost Desktop]# raw /dev/raw/raw1 /dev/loop1
/dev/raw/raw1: bound to major 7, minor 1
[root@localhost Desktop]# raw /dev/raw/raw2 /dev/loop2
/dev/raw/raw2: bound to major 7, minor 2
[root@localhost Desktop]# raw /dev/raw/raw3 /dev/loop3
/dev/raw/raw3: bound to major 7, minor 3
[root@localhost Desktop]# raw /dev/raw/raw4 /dev/loop4
/dev/raw/raw4: bound to major 7, minor 4


Stage 6
-- cd the Dev/raw Directory earlier created as shown below:

[root@localhost Desktop]# cd /dev/raw


Stage 7
-- List as shown below:

[root@localhost raw]# ls -ltr
total 0
crw-rw----. 1 root disk 162, 0 Jun 21 12:45 rawctl
crw-rw----. 1 root disk 162, 1 Jun 21 18:58 raw1
crw-rw----. 1 root disk 162, 2 Jun 21 18:58 raw2
crw-rw----. 1 root disk 162, 3 Jun 21 18:58 raw3
crw-rw----. 1 root disk 162, 4 Jun 21 18:59 raw4

Step 8

I did the chown oracleinstall command for the /dev/raw/raw1 for the 4 parts

Step 9

I did the chmod 660 for the 4 raw disks created

At this stage, it gave me the "permission error" that i don't have the permission to create the disks.

I called the DBCA anyway, but could not find the ASM disks i configured earlier, though the database was created with non-asm files.

Please what can i do at this stage?

Thanks
 
  


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