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Home -> Community -> Mailing Lists -> Oracle-L -> RE: Veritas Quick io
Hi Kathy,
Here is an excerpt from the Veritas Admin Guide.
Chapter 3, Using VERITAS Quick I/O P69
Handling Oracle Temporary Tablespaces and Quick I/O
You cannot convert temporary tablespaces using regular files to Quick I/O
files. By
default, qio_getdbfiles skips any tablespaces marked TEMPORARY because they
can
be sparse, which means that not all blocks in the file are allocated.
Quick I/O files cannot be sparse, as Quick I/O provides a raw-type interface
to storage. If
a sparse file is converted to a Quick I/O file, the Oracle instance can fail
if Oracle attempts
to write into one of these unallocated blocks.
You have the following options:
You can create a new temporary tablespace using Quick I/O files. When you
initially
create a temporary tablespace on Quick I/O files, Oracle sees them as raw
devices and
does not create sparse files.
You can drop your existing temporary tablespaces using regular files and
recreate
them using Quick I/O files.
You can manually create the mkqio.dat file containing the Oracle database
filenames that you want to convert to use Quick I/O, excluding Oracle
tablespaces
that are marked TEMPORARY from the list.
Regards,
Jay
-----Original Message-----
Sent: Friday, May 31, 2002 3:37 PM
To: Multiple recipients of list ORACLE-L
We are using Veritas Quick IO on our Solaris Box 6500 with Oracle Apps 11.5.6 on 8.1.7.2 database.
Right now we do not have the temp files converted to quick io and wonder if we should. The guy who installed Quick IO didn't seen to think we could but he was a pretty junior person.
Anybody here have any experience with this?
Kathy
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Author: Kathy Duret
INET: KathyD_at_belkin.com
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