Re: [ADSM-L] non visible RMAN backups ...
2007-06-18 14:55:37
You usually do not use RMAN to create a backup file locally on the
client and then back up that file to TSM. Instead, via the TDPO api,
RMAN:
1) connects to the TSM server
2) generates a file name
3) checks to see if that file name is currently in use
4) sends a stream of data to the TSM server to be stored in a file using
the generated file name.
I would not want RMAN to store a 200GB backup file locally on the
client. It would consume too much space and the disk i/o would be a
performance hit. (RMAN is usually used for "hot" backups.)
RMAN should have complete control over how long a backup is retained on
the TSM server. RMAN maintains a catalogue database to keep track of
which files are required to restore a database. When RMAN tells TSM to
delete a file, it deletes that file from the catalogue database. At
that point the file is useless as far as restoring the database goes
because it has been dropped from the catalogue database. The ability to
restore previous versions of a database is a logical concept RMAN
maintains using the catalogue database. So once RMAN tells TSM to
delete a file, there is no need to hang on to it.
Thanks,
H. Milton Johnson
-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
goc
Sent: Monday, June 18, 2007 9:25 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: [ADSM-L] non visible RMAN backups ...
hi all,
is there any idea why don't i see RMAN backup files on client machine
IBM Tivoli Storage Manager
Command Line Backup/Archive Client Interface
Client Version 5, Release 4, Level 0.0
Client date/time: 06/18/07 16:16:43
(c) Copyright by IBM Corporation and other(s) 1990, 2007. All Rights
Reserved.
Node Name: DSS25_TDPO
Please enter your user id <DSS25_TDPO>:
Please enter password for user id "DSS25_TDPO":
Session established with server TSM01: AIX-RS/6000
Server Version 5, Release 3, Level 4.0
Server date/time: 06/18/07 16:17:13 Last access: 06/18/07
16:14:27
tsm> q ba /adsmorc/
ANS1092W No files matching search criteria were found
tsm> q filespace
# Last Incr Date Type File Space Name
--- -------------- ---- ---------------
1 06/18/07 12:43:28 API:ORACLE /adsmorc
tsm>
tsm>
tsm>
tsm>
but on server i can see them with no problem at all
DSS25_TDPO /adsmorc 1 ACTIVE_VERSION
FILE// BACK_DSS25.50ikit- 552389757
2007-06-18 oracle DEFAULT
h5_1_1
09:49:54.000000
DSS25_TDPO /adsmorc 1 ACTIVE_VERSION
FILE// BACK_DSS25.50ikit- 552389759
2007-06-18 oracle DEFAULT
v5_1_1
09:57:23.000000
DSS25_TDPO /adsmorc 1 ACTIVE_VERSION
FILE// BACK_DSS25.52ikj7- 552394310
2007-06-18 oracle DEFAULT
la_1_1
12:42:48.000000
DSS25_TDPO /adsmorc 1 ACTIVE_VERSION
FILE// CTRL_DSS25.4pik5u- 550133859
2007-06-13 oracle DEFAULT
8a_1_1
11:42:33.000000
DSS25_TDPO /adsmorc 1 ACTIVE_VERSION
FILE// CTRL_DSS25.4rik61- 550133951
2007-06-13 oracle DEFAULT
ob_1_1
12:42:17.000000
DSS25_TDPO /adsmorc 1 ACTIVE_VERSION
FILE// CTRL_DSS25.4vikit- 552389756
2007-06-18 oracle DEFAULT
h1_1_1
09:49:51.000000
DSS25_TDPO /adsmorc 1 ACTIVE_VERSION
FILE// CTRL_DSS25.4vikit- 552389758
2007-06-18 oracle DEFAULT
v1_1_1
09:57:19.000000
DSS25_TDPO /adsmorc 1 ACTIVE_VERSION
FILE// CTRL_DSS25.51ikj7- 552394309
2007-06-18 oracle DEFAULT
l6_1_1
12:42:43.000000
another tought question ... :-)
why are recommended values for mgmt class 1-0-0-0 and not 0-0-0-0 since
RMAN should do deletions of backups ?
thanks in advance.
goran
tsm5.3.4 on aix with all kind of clients
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