Re: Strange mount/unmount diskgroup
- From: "K Gopalakrishnan" <kaygopal@xxxxxxxxx>
- To: mgogala@xxxxxxxxxxx
- Date: Sun, 18 Feb 2007 16:59:13 -0800
Mladen,
Ignore the messages. They are just informal ones and will be removed
from future(!)versions. Basically ASM close (or dismount) those groups
when it closes the file descriptors on that DG and mounts when it
opens first file on that DG.
-Gopal
On 2/18/07, Mladen Gogala <mgogala@xxxxxxxxxxx> wrote:
I have a RAC database with a standby. Both RAC and standby are on ASM.
On standby,
I used the flashback recovery area located on the DGFRA diskgroup to
create standby redo
logs. There aren't any problems but I am perplexed by entries like this:
RFS[1]: Successfully opened standby log 30:
'+DGFRA/adprd/onlinelog/group_30.265.614877861'
SUCCESS: diskgroup DGFRA was dismounted
SUCCESS: diskgroup DGFRA was mounted
SUCCESS: diskgroup DGFRA was dismounted
Sun Feb 18 17:51:50 2007
SUCCESS: diskgroup DGFRA was mounted
SUCCESS: diskgroup DGFRA was dismounted
SUCCESS: diskgroup DGFRA was mounted
SUCCESS: diskgroup DGFRA was dismounted
Sun Feb 18 17:51:52 2007
Media Recovery Log /BACKUP/archives/archADPRD_1_514_614435904.dbf
Media Recovery Log /BACKUP/archives/archADPRD_1_515_614435904.dbf
Media Recovery Log /BACKUP/archives/archADPRD_2_863_614435904.dbf
Media Recovery Log /BACKUP/archives/archADPRD_1_516_614435904.dbf
Media Recovery Log /BACKUP/archives/archADPRD_2_864_614435904.dbf
Media Recovery Waiting for thread 1 sequence 517
Why in the world is it unmounting/mounting the diskgroup? What useful
purpose does it serve and why
doesn't the instance just leave it mounted?
--
//www.freelists.org/webpage/oracle-l
--
Best Regards,
K Gopalakrishnan
Co-Author: Oracle Wait Interface, Oracle Press 2004
http://www.amazon.com/exec/obidos/tg/detail/-/007222729X/
Author: Oracle Database 10g RAC Handbook, Oracle Press 2006
http://www.amazon.com/gp/product/007146509X/
--
//www.freelists.org/webpage/oracle-l
Other related posts:
