Tom,
It would appear that Beth hit the right solution in the end. In the past
when I've lost a redo log it was the active one which makes for a much bigger
mess. What I believe Beth was running into is that when the database opens it
tries to connect with each file that makes up the database. If it can't then
the open stops right there & complains. In her case the first task was to point
to a disk drive that's available in the first place. Rebuilding the control
file has the same effect, it's just that you can 'rename' the missing log all in
one step. And true issuing a reset logs command does clear out all of the
online redo.
Dick Goulet
____________________Reply Separator____________________
Author: "Mercadante; Thomas F" <[EMAIL PROTECTED]>
Date: 2/20/2002 10:58 AM
Dick,
Couldn't she just
"Alter database open reset logs" - wouldn't this create a new set of redo
logs?
Beth - you didn't say whether you lost all of your redo logs - please do NOT
do the above right away. I've never faced this, and am guessing a bit.
Tom Mercadante
Oracle Certified Professional
-----Original Message-----
Sent: Wednesday, February 20, 2002 9:03 AM
To: Multiple recipients of list ORACLE-L
Beth,
This is one of those conditions where not backing up everything gets one
in
trouble, on occasion. What I believe you'll have to do, which would be true
in
any case, is rebuild the control file. Now I'm not absolutely certain, but
I do
believe you can issue a "alter database backup controlfile to trace" command
on
a mounted database. That will at least give you the script you'll need.
Dick Goulet
____________________Reply Separator____________________
Author: "Seefelt; Beth" <[EMAIL PROTECTED]>
Date: 2/20/2002 5:28 AM
Hi everybody,
This all started with the halon firing in our data center last night around
10pm
so you can imagine my condition.
I lost a disk that contained only redo logs.
When I try to open the database I get
ORA-00313: open failed for members of log group 1 of thread 1
ORA-00312: online log 1 thread 1: 'F:\ORACLE\ORADATA\OWBREPOS\REDO01.LOG'
ORA-27041: unable to open file
OSD-04002: unable to open file
I thought what I needed to do was switch the log files, drop the members
that
are on the bad disk, and then I'd be able to open the database.
So I mounted the database and did
alter system switch logfile;
and its telling me ORA-01109: database not open
I thought I could swicth logfile with the database mounted?
Could someone suggest the right steps I should take to recover?
Many TIA,
Beth
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