My Transaction Log size very strange

Hi
I use SQL Server 2000
I use Full recuperation mode.
My DB size is 458 MB (344 in use, 114 available)
My log size is 18 MB
I do Full backup every hour starting at 8:00 am until 21:00
I do transaction backup every 10 minutes.
The problem is that the size of the transaction log backup is strange, as
follows:
Time Size(KB) filename
...
05:52 78.336 myDB_tlog_200507140552.TRN
06:02 78.336 myDB_tlog_200507140602.TRN
06:12 78.336 myDB_tlog_200507140612.TRN
06:22 78.336 myDB_tlog_200507140622.TRN
06:32 11.776 myDB_tlog_200507140632.TRN
06:42 11.776 myDB_tlog_200507140642.TRN
06:52 78.336 myDB_tlog_200507140652.TRN
07:03 359.117.312 myDB_tlog_200507140703.TRN Note
07:12 133.072.384 myDB_tlog_200507140712.TRN Note
07:22 291.328 myDB_tlog_200507140722.TRN
07:32 291.328 myDB_tlog_200507140732.TRN
07:42 291.328 myDB_tlog_200507140742.TRN
07:52 356.864 myDB_tlog_200507140752.TRN
08:02 356.864 myDB_tlog_200507140802.TRN
08:12 356.864 myDB_tlog_200507140812.TRN
08:22 357.888 myDB_tlog_200507140822.TRN
08:32 422.400 myDB_tlog_200507140832.TRN
08:42 10.663.424 myDB_tlog_200507140842.TRN Note
08:52 437.760 myDB_tlog_200507140852.TRN
09:02 437.760 myDB_tlog_200507140902.TRN
09:12 699.904 myDB_tlog_200507140912.TRN
09:22 503.296 myDB_tlog_200507140922.TRN
09:32 568.832 myDB_tlog_200507140932.TRN
09:42 568.832 myDB_tlog_200507140942.TRN
09:52 569.856 myDB_tlog_200507140952.TRN
10:02 372.224 myDB_tlog_200507141002.TRN
10:12 10.442.240 myDB_tlog_200507141012.TRN Note
10:22 413.184 myDB_tlog_200507141022.TRN
10:32 545.280 myDB_tlog_200507141032.TRN
10:42 479.744 myDB_tlog_200507141042.TRN
10:52 414.208 myDB_tlog_200507141052.TRN
11:02 479.744 myDB_tlog_200507141102.TRN
11:12 413.184 myDB_tlog_200507141112.TRN
11:22 414.208 myDB_tlog_200507141122.TRN
11:32 546.304 myDB_tlog_200507141132.TRN
11:42 1.093.120 myDB_tlog_200507141142.TRN
11:52 303.616 myDB_tlog_200507141152.TRN
12:02 436.736 myDB_tlog_200507141202.TRN
12:12 369.152 myDB_tlog_200507141212.TRN
12:22 239.104 myDB_tlog_200507141222.TRN
12:32 172.544 myDB_tlog_200507141232.TRN
12:42 107.008 myDB_tlog_200507141242.TRN
12:52 172.544 myDB_tlog_200507141252.TRN
13:02 239.104 myDB_tlog_200507141302.TRN
13:12 9.269.760 myDB_tlog_200507141312.TRN Note
13:22 158.208 myDB_tlog_200507141322.TRN
13:32 158.208 myDB_tlog_200507141332.TRN
13:42 92.672 myDB_tlog_200507141342.TRN
13:52 158.208 myDB_tlog_200507141352.TRN
14:02 92.672 myDB_tlog_200507141402.TRN
14:12 92.672 myDB_tlog_200507141412.TRN
14:22 92.672 myDB_tlog_200507141422.TRN
14:32 289.280 myDB_tlog_200507141432.TRN
14:42 16.926.208 myDB_tlog_200507141442.TRN Note
14:52 280.064 myDB_tlog_200507141452.TRN
15:02 411.136 myDB_tlog_200507141502.TRN
Any ideas?
I want to know what is happening, and how to fix it.
Thanks in advance.Hi,
The Size of the transaction log backup will be bigger if you have Bulk
transaction or if you are doing a maintanence operation such
as UPDATE STATISTICS, DBCC INDEXDEFREAG or DBCC DBREINDEX.
Looking in to the current size the transaction log (LDF) I feel that you are
in safe side.
Thanks
Hari
SQL Server MVP
"Juan Carlos" <jcgalarzar@.hotmail.com> wrote in message
news:eP2z25KiFHA.320@.TK2MSFTNGP09.phx.gbl...
> Hi
> I use SQL Server 2000
> I use Full recuperation mode.
> My DB size is 458 MB (344 in use, 114 available)
> My log size is 18 MB
> I do Full backup every hour starting at 8:00 am until 21:00
> I do transaction backup every 10 minutes.
> The problem is that the size of the transaction log backup is strange, as
> follows:
> Time Size(KB) filename
> ...
> 05:52 78.336 myDB_tlog_200507140552.TRN
> 06:02 78.336 myDB_tlog_200507140602.TRN
> 06:12 78.336 myDB_tlog_200507140612.TRN
> 06:22 78.336 myDB_tlog_200507140622.TRN
> 06:32 11.776 myDB_tlog_200507140632.TRN
> 06:42 11.776 myDB_tlog_200507140642.TRN
> 06:52 78.336 myDB_tlog_200507140652.TRN
> 07:03 359.117.312 myDB_tlog_200507140703.TRN Note
> 07:12 133.072.384 myDB_tlog_200507140712.TRN Note
> 07:22 291.328 myDB_tlog_200507140722.TRN
> 07:32 291.328 myDB_tlog_200507140732.TRN
> 07:42 291.328 myDB_tlog_200507140742.TRN
> 07:52 356.864 myDB_tlog_200507140752.TRN
> 08:02 356.864 myDB_tlog_200507140802.TRN
> 08:12 356.864 myDB_tlog_200507140812.TRN
> 08:22 357.888 myDB_tlog_200507140822.TRN
> 08:32 422.400 myDB_tlog_200507140832.TRN
> 08:42 10.663.424 myDB_tlog_200507140842.TRN Note
> 08:52 437.760 myDB_tlog_200507140852.TRN
> 09:02 437.760 myDB_tlog_200507140902.TRN
> 09:12 699.904 myDB_tlog_200507140912.TRN
> 09:22 503.296 myDB_tlog_200507140922.TRN
> 09:32 568.832 myDB_tlog_200507140932.TRN
> 09:42 568.832 myDB_tlog_200507140942.TRN
> 09:52 569.856 myDB_tlog_200507140952.TRN
> 10:02 372.224 myDB_tlog_200507141002.TRN
> 10:12 10.442.240 myDB_tlog_200507141012.TRN Note
> 10:22 413.184 myDB_tlog_200507141022.TRN
> 10:32 545.280 myDB_tlog_200507141032.TRN
> 10:42 479.744 myDB_tlog_200507141042.TRN
> 10:52 414.208 myDB_tlog_200507141052.TRN
> 11:02 479.744 myDB_tlog_200507141102.TRN
> 11:12 413.184 myDB_tlog_200507141112.TRN
> 11:22 414.208 myDB_tlog_200507141122.TRN
> 11:32 546.304 myDB_tlog_200507141132.TRN
> 11:42 1.093.120 myDB_tlog_200507141142.TRN
> 11:52 303.616 myDB_tlog_200507141152.TRN
> 12:02 436.736 myDB_tlog_200507141202.TRN
> 12:12 369.152 myDB_tlog_200507141212.TRN
> 12:22 239.104 myDB_tlog_200507141222.TRN
> 12:32 172.544 myDB_tlog_200507141232.TRN
> 12:42 107.008 myDB_tlog_200507141242.TRN
> 12:52 172.544 myDB_tlog_200507141252.TRN
> 13:02 239.104 myDB_tlog_200507141302.TRN
> 13:12 9.269.760 myDB_tlog_200507141312.TRN Note
> 13:22 158.208 myDB_tlog_200507141322.TRN
> 13:32 158.208 myDB_tlog_200507141332.TRN
> 13:42 92.672 myDB_tlog_200507141342.TRN
> 13:52 158.208 myDB_tlog_200507141352.TRN
> 14:02 92.672 myDB_tlog_200507141402.TRN
> 14:12 92.672 myDB_tlog_200507141412.TRN
> 14:22 92.672 myDB_tlog_200507141422.TRN
> 14:32 289.280 myDB_tlog_200507141432.TRN
> 14:42 16.926.208 myDB_tlog_200507141442.TRN Note
> 14:52 280.064 myDB_tlog_200507141452.TRN
> 15:02 411.136 myDB_tlog_200507141502.TRN
> Any ideas?
> I want to know what is happening, and how to fix it.
> Thanks in advance.
>
>|||Thanks Hari.
But I'm still confused about then changing size!!!
From 300 KB to 16 MB.
Any ideas?
Thanks in advance.
"Hari Prasad" <hari_prasad_k@.hotmail.com> escribi en el mensaje
news:uLHvBRLiFHA.2852@.TK2MSFTNGP15.phx.gbl...
> Hi,
> The Size of the transaction log backup will be bigger if you have Bulk
> transaction or if you are doing a maintanence operation such
> as UPDATE STATISTICS, DBCC INDEXDEFREAG or DBCC DBREINDEX.
> Looking in to the current size the transaction log (LDF) I feel that you
are
> in safe side.
> Thanks
> Hari
> SQL Server MVP
>
>
> "Juan Carlos" <jcgalarzar@.hotmail.com> wrote in message
> news:eP2z25KiFHA.320@.TK2MSFTNGP09.phx.gbl...
as[vbcol=seagreen]
>|||The amount of data in the log is totally dependant on what you are doing
since the last log backup. Use profiler to see what is happening during the
time when the log backups are large and you will see what i causing the
difference.
Andrew J. Kelly SQL MVP
"Juan Carlos" <jcgalarzar@.hotmail.com> wrote in message
news:%23pEhNpLiFHA.1372@.TK2MSFTNGP10.phx.gbl...
> Thanks Hari.
> But I'm still confused about then changing size!!!
> From 300 KB to 16 MB.
> Any ideas?
> Thanks in advance.
> "Hari Prasad" <hari_prasad_k@.hotmail.com> escribi en el mensaje
> news:uLHvBRLiFHA.2852@.TK2MSFTNGP15.phx.gbl...
> are
> as
>