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Home -> Community -> Mailing Lists -> Oracle-L -> Re: Re: Application of logfiles
hi,Robert Blok
i do a test on my 10G database , swaitch logfile , do= nothing, only one user
-rw-rw---- 1 oracle oracle 1536 Apr 22 16:40=
o1_mf_1_217_08h18835_.arc
-rw-rw---- 1 oracle oracle 1024 Apr 22 16:40=
o1_mf_1_218_08h189p0_.arc
-rw-rw---- 1 oracle oracle 4096 Apr 22 16:41=
o1_mf_1_219_08h19252_.arc
-rw-rw---- 1 oracle oracle 1024 Apr 22 16:41=
o1_mf_1_220_08h19401_.arc
-rw-rw---- 1 oracle oracle 1536 Apr 22 16:41=
o1_mf_1_221_08h195mm_.arc
-rw-rw---- 1 oracle oracle 1024 Apr 22 16:41=
o1_mf_1_222_08h19d5t_.arc
-rw-rw---- 1 oracle oracle 20480 Apr 22 16:42=
o1_mf_1_223_08h1d0z0_.arc
-rw-rw---- 1 oracle oracle 1536 Apr 22 16:42=
o1_mf_1_224_08h1d5d8_.arc
-rw-rw---- 1 oracle oracle 1024 Apr 22 16:42=
o1_mf_1_225_08h1d6to_.arc
-rw-rw---- 1 oracle oracle 2048 Apr 22 16:42=
o1_mf_1_226_08h1d8yn_.arc
-rw-rw---- 1 oracle oracle 56832 Apr 22 16:42=
o1_mf_1_227_08h1dh0g_.arc
-rw-rw---- 1 oracle oracle 1024 Apr 22 16:42=
o1_mf_1_228_08h1dj87_.arc
logfile header take 2 blocks ,1024 bytes. 1536 - 1024 =3D 512 ,one os block or one redo log block . one backgroud process write something , maybe it is no useful= logging . such as the process generate SCN ...
i have met one intresting things,i create the controlfile and =
do a incomplete recovery from rac DB,
the archived logs from rac1 and rac2
i notice that recovery do not use rac1's archived log x ,but=
i must apply the rac1's archived log x .
then it switch to rac2's archived log and the SCN is not=
increment . i guess the archived log x
"have no useful redo" but it need it.
Best regards
yahoo id: feng_chunpei
A new dba from china
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-- Archives are at http://www.freelists.org/archives/oracle-l/ FAQ is at http://www.freelists.org/help/fom-serve/cache/1.html -----------------------------------------------------------------Received on Thu Apr 22 2004 - 03:58:43 CDT
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