Ron: Yes, there is an ASM instance that manages the disks. Our company put together a high-level presentation on ASM a couple of months ago for presentation at an Oracle event. It is not a kernel-level nuts and bolts internals presentation (it was for a mixed audience of technicians and managers), but it does provide an overview of what ASM is and how it works. There is a basic walk-through on how to set it up, query information in it once it is setup, etc. You can snag the PDF off of our website if you're interested: http://www.tenure.com/techloads/10g_ASM_Tenure.pdf I hope this helps answer some of the questions. Ron Rogers wrote: >Tanle, > Thanks for the info. That is the method I thought ASM used when you >said that ASM could handle the archlogs. >I don't have ASM installed on my play box yet. If I remember correctly >ASM is a separate install and is started >seperately from the Oracle instance then they talk to each other. >Thanks again, >Ron > > > >>>>tanel.poder.003@xxxxxxx 07/01/2004 3:05:54 PM >>> >>>> >>>> >ASM is using raw devices. It's not possible to (simply) extract >datafiles >nor archivelogs from an ASM managed device, but Oracle knows the >internal >format of the it and knows where the blocks of its "files" are stored >on the >device. > >You can use RMAN to back up archivelogs and datafiles from an ASM >device, no >OS copying is allowed. > >I personally do like ASM and haven't seen any showstopper-bugs, but >I've not >implemented a large RAC+ASM in production yet, only few two node ones >on >linux servers (I don't trust OCFS, I have seen too much trouble with >it). > >Tanel. > > >---------------------------------------------------------------- >Please see the official ORACLE-L FAQ: http://www.orafaq.com >---------------------------------------------------------------- >To unsubscribe send email to: oracle-l-request@xxxxxxxxxxxxx >put 'unsubscribe' in the subject line. >-- >Archives are at //www.freelists.org/archives/oracle-l/ >FAQ is at //www.freelists.org/help/fom-serve/cache/1.html >----------------------------------------------------------------- > > > > -- ==================================================================== Byron Pearce mailto:pearceb@xxxxxxxxxx Tenure Systems, Inc. Dallas/Fort Worth, TX "It's hard to be a ninja when you wear a beeper." ---------------------------------------------------------------- Please see the official ORACLE-L FAQ: http://www.orafaq.com ---------------------------------------------------------------- To unsubscribe send email to: oracle-l-request@xxxxxxxxxxxxx put 'unsubscribe' in the subject line. -- Archives are at //www.freelists.org/archives/oracle-l/ FAQ is at //www.freelists.org/help/fom-serve/cache/1.html -----------------------------------------------------------------