RE: 11g RedHat 5 and Hugepages? anybody successful ?

Don, I am way beyond that point.  If you set memory_max_target = 0 then
start the db, it generates ORA-00849 is thrown.

ORA-00849  SGA_TARGET value was more than MEMORY_MAX_TARGET value.  

   If SGA_TARGET is unset , then I get ORA-27102: out of memory

                                        Linux-x86_64 Error: 28: No space
left on device

 

From: Don Seiler [mailto:don@xxxxxxxxx] 
Sent: Monday, October 11, 2010 3:50 PM
To: Crisler, Jon
Cc: s.cislaghi@xxxxxxxxx; oracle-l@xxxxxxxxxxxxx
Subject: Re: 11g RedHat 5 and Hugepages? anybody successful ?

 

You'll likely need to set memory_target and memory_max_target = 0 with
scope=spfile, then set sga_target (or the individual pools) accordingly
with scope=spfile and then bounce.

 

Note 749851.1 makes it plain that Hugepages and Oracle 11g AMM do not
mix.

 

Don.

On Mon, Oct 11, 2010 at 2:11 PM, Crisler, Jon <Jon.Crisler@xxxxxxx>
wrote:

The problem is if you unset or set to zero memory_max_target, you get
ORA-00849

 

From: Don Seiler [mailto:don@xxxxxxxxx] 
Sent: Monday, October 11, 2010 2:46 PM
To: s.cislaghi@xxxxxxxxx
Cc: Crisler, Jon; oracle-l@xxxxxxxxxxxxx


Subject: Re: 11g RedHat 5 and Hugepages? anybody successful ?

 

You can NOT use memory_target or memory_max_target with HugePages.
That's a non-starter.

 

Don.

On Mon, Oct 11, 2010 at 1:17 PM, Stefano Cislaghi <s.cislaghi@xxxxxxxxx>
wrote:


Hi,

two possibile solution:

 

1. Open SQLPlus and even with instance in idle execute:

create pfile='/tmp/pfilename' from spfile='+ASM/path/to/spfile';

 

Modify the pfile and then following the same procedure create a new
spfile from memory

 

2. Create a standard pfile, startup nomount your instance and do the
step 1

3. With asmcmd you may copy the spfile from ASM to disk, using strings
command convert it in plain text and then use if as a pfile

 

BTW, I always avoid to have the spfile in ASM for this and many other
similar reasons.


Ste
-- 
http://www.stefanocislaghi.eu




-- 
Don Seiler
http://seilerwerks.wordpress.com
ultimate: http://www.mufc.us




-- 
Don Seiler
http://seilerwerks.wordpress.com
ultimate: http://www.mufc.us

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