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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