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Home -> Community -> Mailing Lists -> Oracle-L -> RE: 10g show stoppers
>> ASM can handle file systems?
>> Or is the ASM using raw and knows to keep track of the archlog
>> nomenclature internally
>> and place the logs where it may but make them appear as cooked?
My understanding is that ASM doesn't handle file systems, but provides an integrated FS and VM for the database files. The term "ASM files" used for database files managed by ASM and you can use it for all types of database files including online redo logs, archive logs, temp files, SPFILEs, RMAN files, and Data Pump dumps. ASM split files into pieces called extents and places these onto disks at a position called an Allocation Unit. You can view the extent map using x$kffxp and x$kfdat.
I've done some testing of ASM on RHEL3 and it's fairly easy to get up and running using the docs and a couple of notes from Metalink. Not used it enough to make a statement about it's stability and usability. I had one incident where 4 of my 6 disks disappeared from ASM after a reboot. Don't know if that was caused by ASM, my hardware of myself not having configured the system properly.
Sten
-- Archives are at http://www.freelists.org/archives/oracle-l/ FAQ is at http://www.freelists.org/help/fom-serve/cache/1.html -----------------------------------------------------------------Received on Thu Jul 01 2004 - 14:34:26 CDT
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