SQL Server收缩日志文件的最佳实践

Question

我使用SQL Server 2008R2和2012并拥有完全恢复模式的多数据库（用于支持cdc和复制）。 我有这些数据库的备份计划。

• 每个星期五我都会得到完整的备份。
• 每天除星期五外，我得到差异备份
• 每天10:00到22:00之间每隔10分钟我获得一次事务日志备份

我的日志文件增加到20GB。 我想缩小我的日志文件。

什么是收缩计划日志数据库文件的最佳实践。

编辑

我使用DBCC LogInfo命令访问虚拟日志文件。 该命令的结果如下：

FileId  FileSize    StartOffset FSeqNo  Status  Parity  CreateLSN
2   2031616 8192    153091  0   128 0
2   2031616 2039808 152944  0   128 0
2   262144  4071424 152915  0   64  146379000000337400143
2   262144  4333568 152916  0   64  146379000000337400143
2   262144  4595712 152917  0   64  146379000000337400143
2   516096  4857856 152918  0   64  146379000000337400143
2   393216  5373952 152903  0   128 146384000000338800478
2   393216  5767168 152904  0   128 146384000000338800478
2   393216  6160384 152905  0   128 146384000000338800478
2   458752  6553600 152906  0   128 146384000000338800478
2   524288  7012352 152907  0   128 146388000000028800472
2   524288  7536640 152908  0   128 146388000000028800472
2   524288  8060928 152909  0   128 146388000000028800472
2   524288  8585216 152910  0   128 146388000000028800472
2   655360  9109504 152911  0   128 146392000000047200118
2   655360  9764864 152912  0   128 146392000000047200118
2   655360  10420224    152913  0   128 146392000000047200118
2   786432  11075584    152914  0   128 146392000000047200118
2   851968  11862016    152919  0   64  146419000000023700103
2   851968  12713984    152920  0   64  146419000000023700103
2   851968  13565952    152921  0   64  146419000000023700103
2   1048576 14417920    152922  0   64  146419000000023700103
2   1114112 15466496    152923  0   64  146423000000167600012
2   1114112 16580608    152924  0   64  146423000000167600012
2   1114112 17694720    152925  0   64  146423000000167600012
2   1310720 18808832    152926  0   64  146423000000167600012
2   1507328 20119552    152927  0   64  146427000000209100022
2   1507328 21626880    152929  0   64  146427000000209100022
2   1507328 23134208    152930  0   64  146427000000209100022
2   1507328 24641536    152931  0   64  146427000000209100022
2   1966080 26148864    152932  0   64  146431000000257900016
2   1966080 28114944    152933  0   64  146431000000257900016
2   1966080 30081024    152934  0   64  146431000000257900016
2   1966080 32047104    152935  0   64  146431000000257900016
2   2555904 34013184    152898  0   128 146435000000336700424
2   2555904 36569088    152899  0   128 146435000000336700424
2   2555904 39124992    152901  0   128 146435000000336700424
2   2555904 41680896    152902  0   128 146435000000336700424
2   3276800 44236800    152936  0   128 146473000000341700024
2   3276800 47513600    152937  0   128 146473000000341700024
2   3276800 50790400    152938  0   128 146473000000341700024
2   3473408 54067200    152897  0   64  146473000000341700024
2   4325376 57540608    152939  0   64  146518000000553000011
2   4325376 61865984    152940  0   64  146518000000553000011
2   4325376 66191360    152941  0   64  146518000000553000011
2   4325376 70516736    152942  0   64  146518000000553000011
2   5570560 74842112    152943  0   64  146522000000736300005
2   5570560 80412672    152945  0   64  146522000000736300005
2   5570560 85983232    152946  0   64  146522000000736300005
2   5767168 91553792    152947  0   64  146522000000736300005
2   7274496 97320960    152948  0   64  146526000001000500002
2   7274496 104595456   152949  0   64  146526000001000500002
2   7274496 111869952   152950  0   64  146526000001000500002
2   7405568 119144448   152952  0   64  146526000001000500002
2   9502720 126550016   152953  0   64  146530000001289300001
2   9502720 136052736   152954  0   64  146530000001289300001
2   9502720 145555456   152888  0   128 146530000001289300001
2   9502720 155058176   152889  0   128 146530000001289300001
2   12320768    164560896   152890  0   128 146534000001656400002
2   12320768    176881664   152891  0   128 146534000001656400002
2   12320768    189202432   152892  0   128 146534000001656400002
2   12451840    201523200   152894  0   128 146534000001656400002
2   16056320    213975040   152895  0   128 146538000002183200001
2   8585216 230031360   152955  0   128 152524000000193600502
2   8585216 238616576   152956  0   128 152524000000193600502
2   8585216 247201792   152957  0   128 152524000000193600502
2   8585216 255787008   152872  0   64  152524000000193600502
2   8585216 264372224   152873  0   64  152524000000193600502
2   8585216 272957440   152874  0   64  152524000000193600502
2   8585216 281542656   152875  0   64  152524000000193600502
2   8912896 290127872   152876  0   64  152524000000193600502
2   11206656    299040768   152877  0   64  152526000001333600502
2   11206656    310247424   152878  0   64  152526000001333600502
2   11206656    321454080   152879  0   64  152526000001333600502
2   11206656    332660736   152881  0   64  152526000001333600502
2   11206656    343867392   152882  0   64  152526000001333600502
2   11206656    355074048   152884  0   64  152526000001333600502
2   11206656    366280704   152885  0   64  152526000001333600502
2   11272192    377487360   152886  0   64  152526000001333600502
2   14548992    388759552   152958  0   64  152608000001573600502
2   14548992    403308544   152959  0   64  152608000001573600502
2   14548992    417857536   152960  0   64  152608000001573600502
2   14548992    432406528   152961  0   64  152608000001573600502
2   14548992    446955520   152962  0   64  152608000001573600502
2   14548992    461504512   152963  0   64  152608000001573600502
2   14548992    476053504   152964  0   64  152608000001573600502
2   14811136    490602496   152965  0   64  152608000001573600502
2   18939904    505413632   152967  0   64  152611000002149600502
2   18939904    524353536   152968  0   64  152611000002149600502
2   18939904    543293440   152970  0   64  152611000002149600502
2   18939904    562233344   152971  0   64  152611000002149600502
2   18939904    581173248   152972  0   64  152611000002149600502
2   18939904    600113152   152973  0   64  152611000002149600502
2   18939904    619053056   152974  0   64  152611000002149600502
2   19070976    637992960   152975  0   64  152611000002149600502
2   24641536    657063936   152976  0   64  152615000001117600502
2   24641536    681705472   152978  0   64  152615000001117600502
2   24641536    706347008   152979  0   64  152615000001117600502
2   24641536    730988544   152980  0   64  152615000001117600502
2   24641536    755630080   152981  0   64  152615000001117600502
2   24641536    780271616   152982  0   64  152615000001117600502
2   24641536    804913152   152852  0   128 152615000001117600502
2   24641536    829554688   152853  0   128 152615000001117600502
2   31981568    854196224   152854  0   128 152619000001417600502
2   31981568    886177792   152855  0   128 152619000001417600502
2   31981568    918159360   152856  0   128 152619000001417600502
2   31981568    950140928   152857  0   128 152619000001417600502
2   31981568    982122496   152859  0   128 152619000001417600502
2   31981568    1014104064  152860  0   128 152619000001417600502
2   31981568    1046085632  152861  0   128 152619000001417600502
2   32440320    1078067200  152862  0   128 152619000001417600502
2   41615360    1110507520  152863  0   128 152624000000385600502
2   41615360    1152122880  152864  0   128 152624000000385600502
2   41615360    1193738240  152865  0   128 152624000000385600502
2   41615360    1235353600  152867  0   128 152624000000385600502
2   41615360    1276968960  152868  0   128 152624000000385600502
2   41615360    1318584320  152869  0   128 152624000000385600502
2   41615360    1360199680  152870  0   128 152624000000385600502
2   41877504    1401815040  152871  0   128 152624000000385600502
2   54132736    1443692544  152983  0   128 152752000004775600060
2   54132736    1497825280  152985  0   128 152752000004775600060
2   54132736    1551958016  152987  0   128 152752000004775600060
2   54132736    1606090752  152988  0   128 152752000004775600060
2   54132736    1660223488  152989  0   128 152752000004775600060
2   54132736    1714356224  152990  0   128 152752000004775600060
2   54132736    1768488960  152992  0   128 152752000004775600060
2   54198272    1822621696  152994  0   128 152752000004775600060
2   70385664    1876819968  152995  0   128 152760000010400600001
2   70385664    1947205632  152997  0   128 152760000010400600001
2   70385664    2017591296  152998  0   128 152760000010400600001
2   70385664    2087976960  152999  0   128 152760000010400600001
2   70385664    2158362624  153000  0   128 152760000010400600001
2   70385664    2228748288  153001  0   128 152760000010400600001
2   70385664    2299133952  153003  0   128 152760000010400600001
2   70385664    2369519616  153005  0   128 152760000010400600001
2   91488256    2439905280  153007  0   128 152768000012875400005
2   91488256    2531393536  153009  0   128 152768000012875400005
2   91488256    2622881792  153011  0   128 152768000012875400005
2   91488256    2714370048  153013  0   128 152768000012875400005
2   91488256    2805858304  153015  0   128 152768000012875400005
2   91488256    2897346560  153016  0   128 152768000012875400005
2   91488256    2988834816  153017  0   128 152768000012875400005
2   91553792    3080323072  153018  0   128 152768000012875400005
2   118947840   3171876864  153019  0   128 152776000017490400003
2   118947840   3290824704  153020  0   128 152776000017490400003
2   118947840   3409772544  153021  0   128 152776000017490400003
2   118947840   3528720384  153022  0   128 152776000017490400003
2   118947840   3647668224  153023  0   128 152776000017490400003
2   118947840   3766616064  153024  0   128 152776000017490400003
2   118947840   3885563904  153025  0   128 152776000017490400003
2   118947840   4004511744  153026  0   128 152776000017490400003
2   77266944    4123459584  153027  0   128 152784000022608500002
2   77266944    4200726528  153028  0   128 152784000022608500002
2   77266944    4277993472  153029  0   128 152784000022608500002
2   77266944    4355260416  153030  0   128 152784000022608500002
2   77266944    4432527360  153031  0   128 152784000022608500002
2   77266944    4509794304  153032  0   128 152784000022608500002
2   77266944    4587061248  153033  0   128 152784000022608500002
2   77266944    4664328192  153034  0   128 152784000022608500002
2   77266944    4741595136  153035  0   128 152784000022608500002
2   77266944    4818862080  153036  0   128 152784000022608500002
2   77266944    4896129024  153037  0   128 152784000022608500002
2   77266944    4973395968  153038  0   128 152784000022608500002
2   77266944    5050662912  153039  0   128 152784000022608500002
2   77266944    5127929856  153040  0   128 152784000022608500002
2   77266944    5205196800  153041  0   128 152784000022608500002
2   78053376    5282463744  153042  0   128 152784000022608500002
2   100466688   5360517120  153043  0   128 152800000015038900006
2   100466688   5460983808  153044  0   128 152800000015038900006
2   100466688   5561450496  153045  0   128 152800000015038900006
2   100466688   5661917184  153046  0   128 152800000015038900006
2   100466688   5762383872  153047  0   128 152800000015038900006
2   100466688   5862850560  153048  0   128 152800000015038900006
2   100466688   5963317248  153049  0   128 152800000015038900006
2   100466688   6063783936  153050  0   128 152800000015038900006
2   100466688   6164250624  153051  0   128 152800000015038900006
2   100466688   6264717312  153052  0   128 152800000015038900006
2   100466688   6365184000  153053  0   128 152800000015038900006
2   100466688   6465650688  153054  0   128 152800000015038900006
2   100466688   6566117376  153055  0   128 152800000015038900006
2   100466688   6666584064  153056  0   128 152800000015038900006
2   100466688   6767050752  153057  0   128 152800000015038900006
2   101187584   6867517440  153058  0   128 152800000015038900006
2   130613248   6968705024  153059  0   128 152816000019449900004
2   130613248   7099318272  153060  0   128 152816000019449900004
2   130613248   7229931520  153061  0   128 152816000019449900004
2   130613248   7360544768  153062  0   128 152816000019449900004
2   130613248   7491158016  153063  0   128 152816000019449900004
2   130613248   7621771264  153064  0   128 152816000019449900004
2   130613248   7752384512  153065  0   128 152816000019449900004
2   130613248   7882997760  153066  0   128 152816000019449900004
2   130613248   8013611008  153068  0   128 152816000019449900004
2   130613248   8144224256  153069  0   128 152816000019449900004
2   130613248   8274837504  153070  0   128 152816000019449900004
2   130613248   8405450752  153071  0   128 152816000019449900004
2   130613248   8536064000  153072  0   128 152816000019449900004
2   130613248   8666677248  153073  0   128 152816000019449900004
2   130613248   8797290496  153074  0   128 152816000019449900004
2   131465216   8927903744  153076  0   128 152816000019449900004
2   169803776   9059368960  153077  0   128 152832000025629200065
2   169803776   9229172736  153078  0   128 152832000025629200065
2   169803776   9398976512  153079  0   128 152832000025629200065
2   169803776   9568780288  153080  0   128 152832000025629200065
2   169803776   9738584064  153081  0   128 152832000025629200065
2   169803776   9908387840  153082  0   128 152832000025629200065
2   169803776   10078191616 153084  0   128 152832000025629200065
2   169803776   10247995392 153086  0   128 152832000025629200065
2   169803776   10417799168 153088  0   128 152832000025629200065
2   169803776   10587602944 153090  0   128 152832000025629200065
2   169803776   10757406720 153092  2   128 152832000025629200065
2   169803776   10927210496 152845  0   64  152832000025629200065
2   169803776   11097014272 152846  0   64  152832000025629200065
2   169803776   11266818048 152847  0   64  152832000025629200065
2   169803776   11436621824 152848  0   64  152832000025629200065
2   170786816   11606425600 152850  0   64  152832000025629200065

大多数虚拟文件的状态为0.我希望SQL Server使用状态为0的虚拟文件而不是创建新的虚拟文件。

编辑2

我将数据库的自动增长更改为250MB，初始大小更改为2000MB。 但我的数据库大小在12小时内增长到5000MB。 DBCC Loginfo命令的结果如下。

如何控制数据库日志文件的大小。

FileId  FileSize    StartOffset FSeqNo  Status  Parity  CreateLSN
2   2031616 8192    154016  0   128 0
2   2031616 2039808 154017  0   128 0
2   262144  4071424 153848  0   128 146379000000337400143
2   262144  4333568 153849  0   128 146379000000337400143
2   262144  4595712 153850  0   128 146379000000337400143
2   516096  4857856 153851  0   128 146379000000337400143
2   393216  5373952 153836  0   64  146384000000338800478
2   393216  5767168 153837  0   64  146384000000338800478
2   393216  6160384 153838  0   64  146384000000338800478
2   458752  6553600 153839  0   64  146384000000338800478
2   524288  7012352 153840  0   64  146388000000028800472
2   524288  7536640 153841  0   64  146388000000028800472
2   524288  8060928 153842  0   64  146388000000028800472
2   524288  8585216 153843  0   64  146388000000028800472
2   655360  9109504 153844  0   64  146392000000047200118
2   655360  9764864 153845  0   64  146392000000047200118
2   655360  10420224    153846  0   64  146392000000047200118
2   786432  11075584    153847  0   64  146392000000047200118
2   851968  11862016    153852  0   128 146419000000023700103
2   851968  12713984    153853  0   128 146419000000023700103
2   851968  13565952    153854  0   128 146419000000023700103
2   1048576 14417920    153855  0   128 146419000000023700103
2   1114112 15466496    153856  0   128 146423000000167600012
2   1114112 16580608    153857  0   128 146423000000167600012
2   1114112 17694720    153858  0   128 146423000000167600012
2   1310720 18808832    153859  0   128 146423000000167600012
2   1507328 20119552    153860  0   128 146427000000209100022
2   1507328 21626880    153861  0   128 146427000000209100022
2   1507328 23134208    153862  0   128 146427000000209100022
2   1507328 24641536    153863  0   128 146427000000209100022
2   1966080 26148864    153864  0   128 146431000000257900016
2   1966080 28114944    153865  0   128 146431000000257900016
2   1966080 30081024    153866  0   128 146431000000257900016
2   1966080 32047104    153867  0   128 146431000000257900016
2   2555904 34013184    153832  0   64  146435000000336700424
2   2555904 36569088    153833  0   64  146435000000336700424
2   2555904 39124992    153834  0   64  146435000000336700424
2   2555904 41680896    153835  0   64  146435000000336700424
2   3276800 44236800    153868  0   64  146473000000341700024
2   3276800 47513600    153869  0   64  146473000000341700024
2   3276800 50790400    153870  0   64  146473000000341700024
2   3473408 54067200    153831  0   128 146473000000341700024
2   4325376 57540608    153871  0   128 146518000000553000011
2   4325376 61865984    153872  0   128 146518000000553000011
2   4325376 66191360    153873  0   128 146518000000553000011
2   4325376 70516736    153874  0   128 146518000000553000011
2   5570560 74842112    153875  0   128 146522000000736300005
2   5570560 80412672    153876  0   128 146522000000736300005
2   5570560 85983232    153877  0   128 146522000000736300005
2   5767168 91553792    153878  0   128 146522000000736300005
2   7274496 97320960    153879  0   128 146526000001000500002
2   7274496 104595456   153880  0   128 146526000001000500002
2   7274496 111869952   153881  0   128 146526000001000500002
2   7405568 119144448   153882  0   128 146526000001000500002
2   9502720 126550016   153883  0   128 146530000001289300001
2   9502720 136052736   153884  0   128 146530000001289300001
2   9502720 145555456   153824  0   64  146530000001289300001
2   9502720 155058176   153825  0   64  146530000001289300001
2   12320768    164560896   153826  0   64  146534000001656400002
2   12320768    176881664   153827  0   64  146534000001656400002
2   12320768    189202432   153828  0   64  146534000001656400002
2   12451840    201523200   153829  0   64  146534000001656400002
2   16056320    213975040   153830  0   64  146538000002183200001
2   8585216 230031360   153885  0   64  152524000000193600502
2   8585216 238616576   153886  0   64  152524000000193600502
2   8585216 247201792   153887  0   64  152524000000193600502
2   8585216 255787008   154003  0   64  152524000000193600502
2   8585216 264372224   154004  0   64  152524000000193600502
2   8585216 272957440   154005  0   64  152524000000193600502
2   8585216 281542656   154006  0   64  152524000000193600502
2   8912896 290127872   154007  0   64  152524000000193600502
2   11206656    299040768   153816  0   128 152526000001333600502
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2   11206656    321454080   153818  0   128 152526000001333600502
2   11206656    332660736   153819  0   128 152526000001333600502
2   11206656    343867392   153820  0   128 152526000001333600502
2   11206656    355074048   153821  0   128 152526000001333600502
2   11206656    366280704   153822  0   128 152526000001333600502
2   11272192    377487360   153823  0   128 152526000001333600502
2   14548992    388759552   153888  0   128 152608000001573600502
2   14548992    403308544   153889  0   128 152608000001573600502
2   14548992    417857536   153890  0   128 152608000001573600502
2   14548992    432406528   153891  0   128 152608000001573600502
2   14548992    446955520   153892  0   128 152608000001573600502
2   14548992    461504512   153893  0   128 152608000001573600502
2   14548992    476053504   153894  0   128 152608000001573600502
2   14811136    490602496   153895  0   128 152608000001573600502
2   18939904    505413632   153896  0   128 152611000002149600502
2   18939904    524353536   153897  0   128 152611000002149600502
2   18939904    543293440   153988  0   128 152611000002149600502
2   18939904    562233344   153989  0   128 152611000002149600502
2   18939904    581173248   153990  0   128 152611000002149600502
2   18939904    600113152   153991  0   128 152611000002149600502
2   18939904    619053056   153992  0   128 152611000002149600502
2   19070976    637992960   153993  0   128 152611000002149600502
2   24641536    657063936   153994  0   128 152615000001117600502
2   24641536    681705472   153995  0   128 152615000001117600502
2   24641536    706347008   153996  0   128 152615000001117600502
2   24641536    730988544   153997  0   128 152615000001117600502
2   24641536    755630080   153998  0   128 152615000001117600502
2   24641536    780271616   153999  0   128 152615000001117600502
2   24641536    804913152   154000  0   128 152615000001117600502
2   24641536    829554688   154001  0   128 152615000001117600502
2   31981568    854196224   154002  0   128 152619000001417600502
2   75628544    886177792   154008  0   64  153324000000173800025
2   75628544    961806336   154009  0   64  153324000000173800025
2   75628544    1037434880  154010  0   64  153324000000173800025
2   75628544    1113063424  154011  0   64  153324000000173800025
2   75628544    1188691968  154012  0   64  153324000000173800025
2   75628544    1264320512  154013  0   64  153324000000173800025
2   75628544    1339949056  154014  0   64  153324000000173800025
2   75628544    1415577600  154015  0   64  153324000000173800025
2   75628544    1491206144  154018  2   64  153324000000173800025
2   75628544    1566834688  153809  0   128 153324000000173800025
2   75628544    1642463232  153810  0   128 153324000000173800025
2   75628544    1718091776  153811  0   128 153324000000173800025
2   75628544    1793720320  153812  0   128 153324000000173800025
2   75628544    1869348864  153813  0   128 153324000000173800025
2   75628544    1944977408  153814  0   128 153324000000173800025
2   76546048    2020605952  153815  0   128 153324000000173800025
2   32768000    2097152000  153898  0   64  153897000003656100039
2   32768000    2129920000  153899  0   64  153897000003656100039
2   32768000    2162688000  153900  0   64  153897000003656100039
2   32768000    2195456000  153901  0   64  153897000003656100039
2   32768000    2228224000  153902  0   64  153897000003656100039
2   32768000    2260992000  153903  0   64  153897000003656100039
2   32768000    2293760000  153904  0   64  153897000003656100039
2   32768000    2326528000  153905  0   64  153897000003656100039
2   32768000    2359296000  153906  0   64  153905000006350900482
2   32768000    2392064000  153907  0   64  153905000006350900482
2   32768000    2424832000  153908  0   64  153905000006350900482
2   32768000    2457600000  153909  0   64  153905000006350900482
2   32768000    2490368000  153910  0   64  153905000006350900482
2   32768000    2523136000  153911  0   64  153905000006350900482
2   32768000    2555904000  153912  0   64  153905000006350900482
2   32768000    2588672000  153913  0   64  153905000006350900482
2   32768000    2621440000  153914  0   64  153913000006355000052
2   32768000    2654208000  153915  0   64  153913000006355000052
2   32768000    2686976000  153916  0   64  153913000006355000052
2   32768000    2719744000  153917  0   64  153913000006355000052
2   32768000    2752512000  153918  0   64  153913000006355000052
2   32768000    2785280000  153919  0   64  153913000006355000052
2   32768000    2818048000  153920  0   64  153913000006355000052
2   32768000    2850816000  153921  0   64  153913000006355000052
2   32768000    2883584000  153922  0   64  153921000006354400052
2   32768000    2916352000  153923  0   64  153921000006354400052
2   32768000    2949120000  153924  0   64  153921000006354400052
2   32768000    2981888000  153925  0   64  153921000006354400052
2   32768000    3014656000  153926  0   64  153921000006354400052
2   32768000    3047424000  153927  0   64  153921000006354400052
2   32768000    3080192000  153928  0   64  153921000006354400052
2   32768000    3112960000  153929  0   64  153921000006354400052
2   32768000    3145728000  153930  0   64  153929000006352000078
2   32768000    3178496000  153931  0   64  153929000006352000078
2   32768000    3211264000  153932  0   64  153929000006352000078
2   32768000    3244032000  153933  0   64  153929000006352000078
2   32768000    3276800000  153934  0   64  153929000006352000078
2   32768000    3309568000  153935  0   64  153929000006352000078
2   32768000    3342336000  153936  0   64  153929000006352000078
2   32768000    3375104000  153937  0   64  153929000006352000078
2   32768000    3407872000  153938  0   64  153937000006357700039
2   32768000    3440640000  153939  0   64  153937000006357700039
2   32768000    3473408000  153940  0   64  153937000006357700039
2   32768000    3506176000  153941  0   64  153937000006357700039
2   32768000    3538944000  153942  0   64  153937000006357700039
2   32768000    3571712000  153943  0   64  153937000006357700039
2   32768000    3604480000  153944  0   64  153937000006357700039
2   32768000    3637248000  153945  0   64  153937000006357700039
2   32768000    3670016000  153946  0   64  153945000006355900052
2   32768000    3702784000  153947  0   64  153945000006355900052
2   32768000    3735552000  153948  0   64  153945000006355900052
2   32768000    3768320000  153949  0   64  153945000006355900052
2   32768000    3801088000  153950  0   64  153945000006355900052
2   32768000    3833856000  153951  0   64  153945000006355900052
2   32768000    3866624000  153952  0   64  153945000006355900052
2   32768000    3899392000  153953  0   64  153945000006355900052
2   32768000    3932160000  153954  0   64  153953000006355700039
2   32768000    3964928000  153955  0   64  153953000006355700039
2   32768000    3997696000  153956  0   64  153953000006355700039
2   32768000    4030464000  153957  0   64  153953000006355700039
2   32768000    4063232000  153958  0   64  153953000006355700039
2   32768000    4096000000  153959  0   64  153953000006355700039
2   32768000    4128768000  153960  0   64  153953000006355700039
2   32768000    4161536000  153961  0   64  153953000006355700039
2   32768000    4194304000  153962  0   64  153961000006355800049
2   32768000    4227072000  153963  0   64  153961000006355800049
2   32768000    4259840000  153964  0   64  153961000006355800049
2   32768000    4292608000  153965  0   64  153961000006355800049
2   32768000    4325376000  153966  0   64  153961000006355800049
2   32768000    4358144000  153967  0   64  153961000006355800049
2   32768000    4390912000  153968  0   64  153961000006355800049
2   32768000    4423680000  153969  0   64  153961000006355800049
2   32768000    4456448000  153970  0   64  153969000006355300063
2   32768000    4489216000  153971  0   64  153969000006355300063
2   32768000    4521984000  153972  0   64  153969000006355300063
2   32768000    4554752000  153973  0   64  153969000006355300063
2   32768000    4587520000  153974  0   64  153969000006355300063
2   32768000    4620288000  153975  0   64  153969000006355300063
2   32768000    4653056000  153976  0   64  153969000006355300063
2   32768000    4685824000  153977  0   64  153969000006355300063
2   32768000    4718592000  153978  0   64  153977000006350000039
2   32768000    4751360000  153979  0   64  153977000006350000039
2   32768000    4784128000  153980  0   64  153977000006350000039
2   32768000    4816896000  153981  0   64  153977000006350000039
2   32768000    4849664000  153982  0   64  153977000006350000039
2   32768000    4882432000  153985  0   64  153977000006350000039
2   32768000    4915200000  153986  0   64  153977000006350000039
2   32768000    4947968000  153987  0   64  153977000006350000039

提前致谢

Answer 1

最佳做法是不缩小日志。

日志增长的原因有可能再次发生，为什么要冒这个自动增长的风险呢？ 它们需要时间（BTW确保自动增长以MB为单位，而不是以百分比表示）。

日志是20 GB; 自动增长30％意味着它增长的时间是5 GB。 要分配5 GB并用0覆盖它，它必须花费一些时间。

监视日志的大小和内部使用情况，以查看日志大小的大小，然后如果需要缩小，请使用DBCC SHRINKFILE来相应地调整大小。 总是留一些额外的空间。