<FONT face=Arial color=#0000ff
size=2>Paula,
<FONT face=Arial color=#0000ff
size=2>
IIRC
'MISSING' means it is in the data dictionary, but not the control file. I've
gotten that before, but haven't played that game in a while. You might be able
to 'DROP' them, but I'm not sure. Check that first on a mini-test
system.
<FONT face=Arial color=#0000ff
size=2>
<FONT face=Arial color=#0000ff
size=2>Henry
<FONT face=Tahoma
size=2>-----Original Message-----From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]On Behalf Of
[EMAIL PROTECTED]Sent: Tuesday, June 03, 2003 11:05
PMTo: Multiple recipients of list ORACLE-LSubject: RE:
Good technical documents/references on tuning restores
<FONT face=Arial color=#0000ff
size=2>Okay,
<FONT face=Arial color=#0000ff
size=2>
<FONT face=Arial color=#0000ff
size=2>Database open and I wanted to not restore and not reference certain
index and materia. view datafiles. Now the datafiles show up with weird
MISSING...... names. How do I clean this up?
<FONT face=Arial color=#0000ff
size=2>
<FONT face=Arial color=#0000ff
size=2>Thanks,
<FONT face=Arial color=#0000ff
size=2>paula
<FONT face=Tahoma
size=2>-----Original Message-----From:
[EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]Sent: Tuesday, June 03,
2003 10:20 PMTo: Multiple recipients of list
ORACLE-LSubject: RE: Good technical documents/references on
tuning restores
Strange:
looking at v$backup_async_io found some datafiles
where <FONT
size=2>active bytes per sec
long-waits <FONT
size=2>
2154608
297
7489829
297
How can I start finding the disparity?
-----Original Message----- From:
Stankus, Paula G Sent: Tuesday, June 03, 2003 9:05
PM To: Stankus, Paula G;
'[EMAIL PROTECTED]' Subject: RE: Good technical
documents/references on tuning restores
Did I say that throughout this restore/recovery process my
tapes being mounted and unmounted while other database backups and cloning
was occurring. Big duh - this has got to be slowing down the
process. Any ideas on how to handle this? Perhaps more than one
tape subsystem would be better or while doing restores other backup utility
is halted - hmmm - but that risks those other systems? How can I sell
that? Hmmmm. Maybe I will first backup to disk. Yep, one
backup to disk. Yep.....
-----Original Message----- From:
Stankus, Paula G Sent: Tuesday, June 03, 2003 9:00
PM To: Stankus, Paula G;
'[EMAIL PROTECTED]' Subject: RE: Good technical
documents/references on tuning restores
See nwadmin shows parellism = 32. I am not the tape
person - that is my sys admin. I don't believe they actually have 32
tapes involved only 4. Can this impact performance by setting this too
high? I also notice one backup server for networker with nwadmin
messages like "clone sets being created...", "other databases being backed
up". What is the usual policy on concurrently running backups, cloning
at the same time recovery is taking place. It appears to show a lot of
media waiting events: waiting for dlt7000 tape ... of the tapes that I
specifically need for this restore. Did I say: I love my
admin...I love my admin....I love my admin...
-----Original Message----- From:
Stankus, Paula G Sent: Tuesday, June 03, 2003 8:53
PM To: Stankus, Paula G;
'[EMAIL PROTECTED]' Subject: RE: Good technical
documents/references on tuning restores
Okay, almost 4 minutes for a datafile that was 78168 blocks
- how do I know if this is reasonable?
Also, seems to write these files out (restore sychron.) why
can't it restore different datafiles in parallel? - stupid question
huh?
-----Original Message----- From:
Stankus, Paula G Sent: Tuesday, June 03, 2003 8:46
PM To: Stankus, Paula G;
'[EMAIL PROTECTED]' Subject: RE: Good technical
documents/references on tuning restores
SELECT SID, SERIAL#,
CONTEXT,
ROUND(SOFAR/TOTALWORK*100,2) "%
complete",
SUBSTR(TO_CHAR(SYSDATE,'HH24:MI:SS'),1,15) "Time
now" FROM
V$SESSION_LONGOPS
WHERE OPNAME like
'%restore%';
<FONT
size=2>.
showed all 100% complete but msglog from RMAN shows
it is truly still running.
-----Original Message----- From:
Stankus, Paula G Sent: Tuesday, June 03, 2003 8:40
PM To: Stankus, Paula G;
'[EMAIL PROTECTED]' Subject: RE: Good technical
documents/references on tuning restores
Also found on monitoring performance of RMAN jobs:
Note:144640.1 on Metalink
-----Original Message----- From:
Stankus, Paula G Sent: Tuesday, June 03, 2003 8:36
PM To: Stankus, Paula G;
'[EMAIL PROTECTED]' Subject: RE: Good technical
documents/references on tuning restores
Found this white paper:
<A
href="http://otn.oracle.com/deploy/availability/pdf/rman_performance_wp.pdf"
target=_blank>http://otn.oracle.com/deploy/availability/pdf/rman_performance_wp.pdf
Anything better?
-----Original Message----- From:
Stankus, Paula G Sent: Tuesday, June 03, 2003 8:33
PM To: Stankus, Paula G;
'[EMAIL PROTECTED]' Subject: RE: Good technical
documents/references on tuning restores
This is what I have set on my target database:
- -------
- <FONT
size=2>backup_tape_io_slaves
boolean
FALSE
<FONT
size=2>tape_asynch_io
boolean
TRUE
Version 8.1.7.4 database and RMAN catalog - 32 bit
Networker MML Using RAID 1+0
Solaris 2.8
-----Original Message----- From:
Stankus, Paula G Sent: Tuesday, June 03, 2003 8:28
PM To: Stankus, Paula G;
'[EMAIL PROTECTED]' Subject: RE: Good technical
documents/references on tuning restores
Okay - from my reading you don't need to have multiple tape
io slaves if you are using asynch. I/O. Again, best document for perf.
tuning database restores using RMAN would make mucho difference. Read
old note about someone doing an analyze on the RMAN catalog tables to
improve performance of restore. I think it has something to do with
how quickly it finds the file on tape and writes to disk.
-----Original Message----- From:
Stankus, Paula G Sent: Tuesday, June 03, 2003 8:25
PM To: '[EMAIL PROTECTED]' <FONT
size=2>Subject: RE: Good technical documents/references on tuning
restores
Seems to be taking awfully long to read files from tape and
write to disk. I allocate multiple tape channels like I do for the
backup which only takes about 45 minutes. Does not seem to be spawning
multiple sessions. Do I need to change parameters on my init.ora file
to use multiple tape io slaves to see this. Anyway, would like notes/docs.,
references if you all have some.
Thanks, Paula
Received on Thu Jun 05 2003 - 02:12:43 CDT
