Hi all!
For those are familiar with RHEL/OEL 4 and 5, there is some differences to start ASMLib on OEL 6 and 7.
So, a quick guide to install (done on OEL 7), start and configure:
1. Install the ASMLib kernel module package as root using the following command:
yum install kmod-oracleasm
2. Install the ASMLib library package and utilities package
yum install oracleasm-support oracleasmlib oracleasm-`uname -r`
It’s possible some package to not found. For example:
No package oracleasmlib available.
So, you can download rpm libs from here and install via rpm:
[root@dbsrv01 oracle]# rpm -Uvh ~/oracleasmlib-2.0.12-1.el6.x86_64.rpm Preparing... ################################# [100%] Updating / installing... 1:oracleasmlib-2.0.12-1.el6 ################################# [100%]
Ok, now, lets configure/start services:
[root@dbsrv01 ~]# /etc/init.d/oracleasm configure
Nothing happen? Ok, let’s try to start it:
[root@dbsrv01 ~]# /etc/init.d/oracleasm start Starting oracleasm (via systemctl): Job for oracleasm.service failed because the control process exited with error code. See "systemctl status oracleasm.service" and "journalctl -xe" for details. [FAILED]
Hmmm… Are these commands correct?
[root@dbsrv01 ~]# /etc/init.d/oracleasm
Usage: /etc/init.d/oracleasm {configure|createdisk|deletedisk|querydisk|listdisks|scandisks|status}
Ok… So, what to do?
Take a look:
[root@dbsrv01 ~]# oracleasm init Creating /dev/oracleasm mount point: /dev/oracleasm Loading module "oracleasm": oracleasm Configuring "oracleasm" to use device physical block size Mounting ASMlib driver filesystem: /dev/oracleasm
Victory!
Now, let’s configure:
[root@dbsrv01 ~]# oracleasm configure ORACLEASM_UID= ORACLEASM_GID= ORACLEASM_SCANBOOT=true ORACLEASM_SCANORDER="" ORACLEASM_SCANEXCLUDE="" ORACLEASM_USE_LOGICAL_BLOCK_SIZE="false"
It shows, but how configure?
Just put “-i” clause, like:
[root@dbsrv01 ~]# oracleasm configure -i
Configuring the Oracle ASM library driver.
This will configure the on-boot properties of the Oracle ASM library
driver. The following questions will determine whether the driver is
loaded on boot and what permissions it will have. The current values
will be shown in brackets ('[]'). Hitting without typing an
answer will keep that current value. Ctrl-C will abort.
Default user to own the driver interface []: grid
Default group to own the driver interface []: oinstall
Scan for Oracle ASM disks on boot (y/n) [y]: y
Writing Oracle ASM library driver configuration: done
And you can list again:
[root@dbsrv01 ~]# oracleasm configure ORACLEASM_UID=grid ORACLEASM_GID=oinstall ORACLEASM_SCANBOOT=true ORACLEASM_SCANORDER="" ORACLEASM_SCANEXCLUDE="" ORACLEASM_USE_LOGICAL_BLOCK_SIZE="false" [root@dbsrv01 ~]# oracleasm status Checking if ASM is loaded: yes Checking if /dev/oracleasm is mounted: yes
To add a disk, the same process can be followed on earlier versions:
[root@dbsrv01 ~]# oracleasm createdisk SDD /dev/sdd1 Writing disk header: done Instantiating disk: done [root@dbsrv01 ~]# oracleasm listdisks SDD
For all commands:
[root@dbsrv01 ~]# oracleasm -h Usage: oracleasm [--exec-path=] [ ] oracleasm --exec-path oracleasm -h oracleasm -V The basic oracleasm commands are: configure Configure the Oracle Linux ASMLib driver init Load and initialize the ASMLib driver exit Stop the ASMLib driver scandisks Scan the system for Oracle ASMLib disks status Display the status of the Oracle ASMLib driver listdisks List known Oracle ASMLib disks querydisk Determine if a disk belongs to Oracle ASMlib createdisk Allocate a device for Oracle ASMLib use deletedisk Return a device to the operating system renamedisk Change the label of an Oracle ASMlib disk update-driver Download the latest ASMLib driver
And to see arguments for each one:
[root@dbsrv01 ~]# oracleasm configure -h Usage: oracleasm-configure [-l ] [-i|-I] [-e|-d] [-u ] [-g ] [-b|-p] [-s y|n] [[-o ] ...] [[-x ] ...]
Have a nice day!
See ya!
Matheus.
