Just as an aside, in one of my shops we have just increased the recovery
log to >6GB with TSM 4.2 (couldn't make it larger because of lack of disk
space on our server). The new 13GB maximum log size has helped in that we
will not be doing as many incremental db backups any more.
Joerg Pohlmann
Alain Gourves <alain.gourves AT BNPPARIBAS DOT COM>@VM.MARIST.EDU> on 2001-10-04
05:32:36
Please respond to "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
Sent by: "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
To: ADSM-L AT VM.MARIST DOT EDU
cc:
Subject: Réf. : Recovery log space spikes
Hi,
Be carefull about the max log size It's not 5,5GB but only 5500MB so if you
convert MB to GB, the maximum size is 5,3GB.
When your log space is 5500MB and full, you have to restore the database
because you can't extend the log space.
Since our database is more than 60GB, we must use rollforward mode because
full database backup is too long.
We are in TSM 4.1.4.1 and there is a bug with incremental database backup .
The log space doesn't clear every time when DB backup ends.
Now we upgrade to TSM 4.2 and the first server is OK.
Regards,
Alain Gourves
Internet
dbrowne AT HUMANA DOT [email protected] - 04/10/2001 13:46
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ccc :
Objet : Recovery log space spikes
The maximum size of the recovery log is 5.5GB, my recovery log is 4.5 GB
now and I have just recently increased it 1GB from 3.5GB. It filled up
again last night. My database is 59.5 GB. Could I have a problem that is
causing my recovery log to fill up or is this normal for this size of
database?
I am running TSM 3.7.4 on OS390 R 2.10.
I have been testing TSM 4.1.4 and am planning to go to the new release in
the next few weeks, could this help the situation?
Below shows the past three days monitoring.
*********************
October 4, 2001
*************************************************************************
tsm: ADSM3>q log
Available Assigned Maximum Maximum Page Total
Used Pct Max.
Space Capacity Extension Reduction Size
Usable Pages Util Pct
(MB) (MB) (MB) (MB)
(bytes) Pages Util
--------- -------- --------- ---------
---
------- --------- --------- -----
------- --------- --------- -----
-----
-----
4,620 4,620 0 4,264
4,620 4,620 0 4,264
4,096 1,182,208 89,762 7.6 100.0
Available Assigned Maximum Maximum Page
Total Used Pct Max.
Space Capacity Extension Reduction Size
Usable Pages Util Pct
(MB) (MB) (MB) (MB)
(bytes) Pages
Util
--------- -------- ---------
--------- ------- ---------------
--------- ------- ---------------
---------------- ------ ------
---------------- ------ ------
60,908 60,908 0 6,852
60,908 60,908 0 6,852
4,096 15,592,448 13,839,066 88.8 88.8
tsm: ADSM3>
********************************
October 3, 2001
******************************************************************************************************************
tsm: ADSM3>q log
Available Assigned Maximum Maximum Page
Total Used Pct Max.
Space Capacity Extension Reduction Size
Usable Pages Util Pct
(MB) (MB) (MB) (MB)
(bytes) Pages Util
--------- -------- ---------
--------- ------- -------------
-------------------- ------- -------------
------------
-
----- -----
----- -----
4,620 4,620 0 2,4
4,620 4,620 0 2,480
4,096 1,182,208 546,313 46.2 88.6
tsm: ADSM3>q db
Available Assigned Maximum Maximum Page
Total Used Pct Max.
Space Capacity Extension Reduction Size
Usable Pages Util Pct
(MB) (MB) (MB) (MB)
(bytes) Pages Util
--------- -- -------- ---------
--------- ------- -------------- ---------------
-
----- -----
----- -----
60,908 60,908 0 7,208
60,908 60,908 0 7,208
4,096 15,592,448 13,748,751 88.2 88.2
tsm: ADSM3>
*****************************************************************************************************************
October 2, 2001
tsm: ADSM3>q log
Available Assigned Maximum Maximum Page
Total Used Pct Max.
Space Capacity Extension Reduction
Size Usable Pages Util Pct
(MB) (MB) (MB) (MB)
(bytes) Pages Util
--------- -------- ---------
--------- ------- -------------- -----------
---
----- -----
----- -----
4,620 4,620 0
4,620 4,620 0
988 4,096 1,182,208 928,830 78.6
78.6
tsm: ADSM3>q db
Available Assigned Maximum Maximum Page Total
Used Pct Max.
Space Capacity Extension Reduction Size
Usable Pages Util Pct
(MB) (MB) (MB) (MB)
(bytes) Pages
Util
--------- -------- --------- ---------
------- --------- --------------- -----
-----
-----
60,908 60,908 0 7,648
60,908 60,908 0 7,648
4,096 15,592,44 8 13,635,960 87.5 87.5
tsm: ADSM3>
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