RE: missing controlfile when add node
- From: "Randy Johnson" <randyjo@xxxxxxxxxxxxx>
- To: <oracle-l@xxxxxxxxxxxxx>
- Date: Wed, 4 Jul 2007 13:11:09 -0500
Your first point is spot on. Wish I had thought of it. I second the notion
of the device mappings and method of verifying them.
-Randy
Randy Johnson
Sr. Technical Consultant
Enkitec, LLP
Office ..... 817-255-3580
Mobile .... 817-564-6583
Email ..... HYPERLINK
"mailto:randy.johnson@xxxxxxxxxxx"randy.johnson@xxxxxxxxxxx
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From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx]
On Behalf Of Dan Norris
Sent: Wednesday, July 04, 2007 11:07 AM
To: ujang.jaenudin@xxxxxxxxx; oracle-l@xxxxxxxxxxxxx
Subject: Re: missing controlfile when add node
Well, this is one case where I think that Oracle is being pretty good about
telling you what's happening. I'd start by making sure that your spfile is
shared between all instances. That will force the control_files parameter to
be the same on all nodes (since it should be *.control_files).
Once you do that, if the problem still exists, then it is probably the case
that your devices aren't mapped the same on this new node you're adding.
That is /dev/rdsk/c2t0d59s6 isn't the same device from the other RAC nodes.
You'll probably need a sysadmin to help determine which devices are which on
each node. If you can (without harming data), I usually use dd to make sure
that devices are the same on all nodes. That is:
node1$ dd if=/etc/hosts of=/dev/rdsk/c2t0d0s6 bs=4k
then, go to node2 and do:
node2$ dd if=/dev/rdsk/c2t0d0s6 of=/tmp/hosts-from-node1 bs=4k
and verify that /tmp/hosts-from-node1 matches /etc/hosts on node1. Of
course, when you're adding a node to an existing cluster, you probably can't
do that, but I thought it may be helpful. However, you could do this:
node1$ dd if=/dev/rdsk/c2t0d59s6 of=/tmp/fromnode1.dbf bs=8k count=100
node2$ dd if=/dev/rdsk/c2t0d59s6 of=/tmp/fromnode2.dbf bs=8k count=100
Then, ftp (in binary mode) or scp the files to the same node and do a diff
on them. If they're different, then the devices aren't the same one on each
node. There should be no harm to the data on this device by doing the dd
outlined above, but I'd still do it when the existing RAC instances are
shutdown (I wouldn't use abort in this case :).
Dan
----- Original Message ----
From: Ujang Jaenudin <ujang.jaenudin@xxxxxxxxx>
To: oracle-l@xxxxxxxxxxxxx
Sent: Wednesday, July 4, 2007 9:17:52 AM
Subject: missing controlfile when add node
all,
does anyone have an experience regarding add nodes in RAC environment
and about controlfile wrong?
solaris 5.9
oracle 10.2.0.3
3rd node was added, and try to mount database:
ORA-00203: using the wrong control files
ORA-00202: control file: '/dev/rdsk/c2t0d59s6'
--
regards
ujang
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