Re: Any reference about use of CSS in Non-RAC ASM instance,

  • From: Dan Norris <dannorris@xxxxxxxxxxxxx>
  • To: hansrajsao@xxxxxxxxx, oracle-l@xxxxxxxxxxxxx
  • Date: Thu, 27 Dec 2007 10:12:55 -0800 (PST)

There's a little more than that in the whitepaper at 
http://www.oracle.com/technology/products/database/asm/pdf/asm_10gr2_bestpractices%2009-07.pdf.

On page 12, it says:
When a diskgroup becomes mounted, ASM registers the diskgroup name, the 
instance name, and the
corresponding Oracle Home path name with Cluster Synchronization Services 
(CSS). This registered data
is then used by the database instance to build the TNS connect string. This 
string is subsequently used by
the database instance to connect into the ASM instance for volume management 
activities. This is
discussed in the Database Instance Section.

There's some more info on page 16. It isn't in-depth internals, but it's better 
than the one-liner you've found so far.

Incidentally, that paper's author, Nitin Vengurlekar, is probably the foremost 
expert on ASM that I've ever met. He's written or collaborated on many of the 
technical documents you'll find at 
http://www.oracle.com/technology/products/database/asm/index.html

Dan

----- Original Message ----
From: hansraj sao <hansrajsao@xxxxxxxxx>
To: oracle-l@xxxxxxxxxxxxx
Sent: Thursday, December 27, 2007 11:42:58 AM
Subject: Any reference about use of CSS in Non-RAC ASM instance,


Hi,

 

Does any one have details note/white paper which describe use of CSS(Cluster 
Synchronization Services ) in Non-RAC ASM instance. i went thru  a ASM book and 
few Metalink notes but did not get much datails other than everywhere its 
written that


 

 "CSS daemon process is required to enable synchronization between Oracle ASM 
and database instances. It must be running if an Oracle database is using ASM 
for database file storage. "

 

Can anyone point any note/white paper which describe use of CSS in non-RAC ASM 
instance.
-- 
Thanks,
Hansraj 
 




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