Re: ASM on Solaris logical volumes

Frank wrote:

> Hello,
>
> I wanted to play a little with Oracle ASM on a Solaris box. Because ASM
> uses raw devices I created a bunch of 2 gb (logical) metadevices with
> the Solaris Volume Manager, in the hope that Oracle would be able to use
> these devices for ASM. However, using dbca and choosing for the ASM
> option the dbca utility was not able to find the 'disks' (even after
> changing the ASM disk search path to /dev/md/rdsk/ and chaning ownership
> of the devicefiles to oracle:dba). So my question is, should this be
> possible? Does it make any difference to Oracle wether the devices are
> of type /dev/rdsk/cXtXdXsX (the plain disk device file) or
> /dev/md/rdsk/dXX (the SVM logical volume device file)?

First I recommend reading the manual about ASM. After that you create an ASM instance that forms the manager for the ASM disks. If you got that up you can build a database that stores the data on ASM.

On solaris it is easiest to use mknod to use interfaces to the logical volumes that you can name like you want and give the ownership you need.

regards,
Ronald.
http://ciber.nl
http://ronr.nl/unix-dba Received on Mon Apr 18 2005 - 13:24:17 CDT