Re: ASM.....Who's using it?

DA Morgan wrote:
> oracle_man wrote:
>
> > Please share your experiences using ASM. Do feel free to post the
> > good, the bad and the ugly.
>
> Have yet to see any bad or ugly. But good?
>
> 1. No Veritas or other volume managers
> 2. Simple volume management all without a single UNIX SA
> 3. Simple load-balancing
> 4. Low overhead cost (CPU) compared to alternatives
> 5. Disk group management as opposed to datafile management
>
> But realistically it is new and most of the issues I hear about are
> related to the same basic bug we all run into with our first data
> warehouse. Build that first one, learn from the mistake, burn it to
> the ground, and do it right the next time.
>
> Failure to have or work with a test environment carries a very high
cost.
> --
> Daniel A. Morgan
> University of Washington
> damorgan_at_x.washington.edu
> (replace 'x' with 'u' to respond)

I am new to ASM. I have seen examples of using ASM with raw devices, ASM with device names, as well as ASM with "cooked" file systems. I will think from performance point, using ASM with raw devices is the best configuration (i.e., setting ASM diskgroups where disks are raw devices).

Prem Received on Wed Mar 02 2005 - 19:45:34 CST