Vmware creates a shared disk for oracle rac to use (rhel system)
1 create a shared disk using vmware:
C:\ Users\ Administrator > E:\ vmware\ vmware-vdiskmanager.exe-c-s 500m-a lsilogic-T2 "G:\ rac_sharedisk\ testdisk01.vmdk"
Creating disk'G:\ rac_sharedisk\ testdisk01.vmdk'
Create: 100% done.
Virtual disk creation successful.
2 use vmware to add disks to the virtual machine.
Enter the virtual machine home directory, modify the corresponding vmx file, and add the following line, of which 6 can be made according to the situation.
Scsi1:6.present = "TRUE"
Scsi1:6.mode = "independent-persistent"
Scsi1:6.filename = "G:\ rac_sharedisk\ testdisk01.vmdk"
Scsi1:6.deviceType = "disk"
Ps: a set of rac with the same operation for both nodes
3 the operating system scans the disk. If fdisk cannot see the corresponding disk, use the following command to rescan the disk (no effect on the running rac)
[root@rac1 raw] # echo "- -" > / sys/class/scsi_host/host0/scan
[root@rac1 raw] # echo "- -" > / sys/class/scsi_host/host1/scan
...
[root@rac1 raw] # fdisk-l
Disk / dev/sdg: 524 MB, 524288000 bytes
64 heads, 32 sectors/track, 500 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
4 modify udev configuration file
[root@rac2 raw] # grep-v ^ # / etc/udev/rules.d/60-raw.rules
ACTION== "add", KERNEL== "sdb1", RUN+= "/ bin/raw / dev/raw/raw1 N"
ACTION== "add", KERNEL== "sdc1", RUN+= "/ bin/raw / dev/raw/raw2 N"
ACTION== "add", KERNEL== "sdd1", RUN+= "/ bin/raw / dev/raw/raw3 N"
ACTION== "add", KERNEL== "sde1", RUN+= "/ bin/raw / dev/raw/raw4 N"
ACTION== "add", KERNEL== "sdf1", RUN+= "/ bin/raw / dev/raw/raw5 N"
ACTION== "add", KERNEL== "sdg", RUN+= "/ bin/raw / dev/raw/raw6 N"
KERNEL== "raw1", OWNER= "grid", GROUP= "asmadmin", MODE= "660"
KERNEL== "raw2", OWNER= "grid", GROUP= "asmadmin", MODE= "660"
KERNEL== "raw3", OWNER= "grid", GROUP= "asmadmin", MODE= "660"
KERNEL== "raw4", OWNER= "grid", GROUP= "asmadmin", MODE= "660"
KERNEL== "raw5", OWNER= "grid", GROUP= "asmadmin", MODE= "660"
KERNEL== "raw6", OWNER= "grid", GROUP= "asmadmin", MODE= "660"
5 restart udev (no effect on running rac)
/ sbin/start_udev
6 confirm that the disk already exists
[root@rac1 raw] # pwd
/ dev/raw
[root@rac1 raw] # ll
Total 0
Crw-rw---- 1 grid asmadmin 162, 1 Jun 14 05:01 raw1
Crw-rw---- 1 grid asmadmin 162, 2 Jun 14 05:00 raw2
Crw-rw---- 1 grid asmadmin 162, 3 Jun 14 05:00 raw3
Crw-rw---- 1 grid asmadmin 162, 4 Jun 14 04:40 raw4
Crw-rw---- 1 grid asmadmin 162, 5 Jun 14 04:40 raw5
Crw-rw---- 1 grid asmadmin 162, 6 Jun 14 05:00 raw6
Crw-rw---- 1 root disk 162, 0 Jun 14 04:40 rawctl
6 enter the asm instance and add the disk.
SQL > select PATH,name,GROUP_NUMBER,STATE,MOUNT_STATUS,HEADER_STATUS from v$asm_disk
PATH NAME GROUP_NUMBER STATE MOUNT_STATUS HEADER_STATUS
-
/ dev/raw/raw6 0 NORMAL CLOSED CANDIDATE
/ dev/raw/raw3 DATA_0002 2 NORMAL CACHED MEMBER
/ dev/raw/raw4 DATA1_0000 1 NORMAL CACHED MEMBER
/ dev/raw/raw5 DATA1_0001 1 NORMAL CACHED MEMBER
/ dev/raw/raw2 DATA_0001 2 NORMAL CACHED MEMBER
/ dev/raw/raw1 DATA_0000 2 NORMAL CACHED MEMBER
SQL > alter diskgroup DATA add disk'/ dev/raw/raw6'
Diskgroup altered.
