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Home -> Community -> Mailing Lists -> Oracle-L -> RE: is shutdown immediate adequate for consistent cold backup?
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Paul, a shutdown immediate in 7.3.x and above (maybe in earlier versions as well) will work. This is due to the way Oracle recovers during startup (rolls forward, then back).
Regards,
Satar
> -----Original Message-----
> From: Paul Drake [SMTP:drake_at_psscorp.com]
> Sent: Wednesday, December 06, 2000 4:51 PM
> To: Multiple recipients of list ORACLE-L
> Subject: is shutdown immediate adequate for consistent cold backup?
>
> <set feedback on>
>
> I had an assumption displaced today. Not a big one, but I might be making
> some changes tomorrow.
> (tonight I was under the hood of the development server, upping
> db_block_lru_latches =2, and db_writer_processes = 2), etc.
>
> Some time ago - I had read in some Oracle doc somewhere, that a shutdown
> immediate was sufficient before performing a cold backup. I used to do a
> (stop listener) shutdown immediate, startup (restrict if I felt evil) and
> shutdown normal. When I re-wrote for 8.1.6 - I just used shutdown
> immediate.
>
> I've had databases recovered (successfully) off of the shutdown immediate
> method.
> Is it just that there is an outside chance that shutdown immediate prior
> to
> backup could leave some type of garbage behind?
>
> Please note that the words 'shutdown abort' were not used in this little
> firestarter before replying.
>
> thanks,
>
> Paul
>
> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.com
> --
> Author: Paul Drake
> INET: drake_at_psscorp.com
>
> Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051
> San Diego, California -- Public Internet access / Mailing Lists
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<P><FONT COLOR=3D"#0000FF" SIZE=3D2 FACE=3D"Arial">Paul, a shutdown = immediate in 7.3.x and above (maybe in earlier versions as well) will = work. This is due to the way Oracle recovers during startup (rolls = forward, then back).</FONT></P>
<P><FONT COLOR=3D"#0000FF" SIZE=3D2 FACE=3D"Arial">Regards,<BR> Satar</FONT>
</P> <UL> <P><FONT SIZE=3D1 FACE=3D"Arial">-----Original Message-----</FONT> <BR><B><FONT SIZE=3D1 FACE=3D"Arial">From: </FONT></B> <FONT =SIZE=3D1 FACE=3D"Arial">Paul Drake [SMTP:drake_at_psscorp.com]</FONT> <BR><B><FONT SIZE=3D1 FACE=3D"Arial">Sent: </FONT></B> <FONT = SIZE=3D1 FACE=3D"Arial">Wednesday, December 06, 2000 4:51 PM</FONT> <BR><B><FONT SIZE=3D1 =
<P><FONT SIZE=3D2 FACE=3D"Arial"><set feedback on></FONT> </P>
<P><FONT SIZE=3D2 FACE=3D"Arial">I had an assumption displaced today. =
Not a big one, but I might be making</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">some changes tomorrow.</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">(tonight I was under the hood of the =
development server, upping</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">db_block_lru_latches =3D2, and =
db_writer_processes =3D 2), etc.</FONT>
</P>
<P><FONT SIZE=3D2 FACE=3D"Arial">Some time ago - I had read in some = Oracle doc somewhere, that a shutdown</FONT> <BR><FONT SIZE=3D2 FACE=3D"Arial">immediate was sufficient before = performing a cold backup. I used to do a</FONT> <BR><FONT SIZE=3D2 FACE=3D"Arial">(stop listener) shutdown immediate, = startup (restrict if I felt evil) and</FONT> <BR><FONT SIZE=3D2 FACE=3D"Arial">shutdown normal. When I re-wrote for = 8.1.6 - I just used shutdown immediate.</FONT> </P>
<P><FONT SIZE=3D2 FACE=3D"Arial">I've had databases recovered =
(successfully) off of the shutdown immediate</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">method.</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Is it just that there is an outside =
chance that shutdown immediate prior to</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">backup could leave some type of =
garbage behind?</FONT>
</P>
<P><FONT SIZE=3D2 FACE=3D"Arial">Please note that the words 'shutdown = abort' were not used in this little</FONT> <BR><FONT SIZE=3D2 FACE=3D"Arial">firestarter before replying.</FONT> </P>
<P><FONT SIZE=3D2 FACE=3D"Arial">thanks,</FONT> </P>
<P><FONT SIZE=3D2 FACE=3D"Arial">Paul</FONT> </P>
<P><FONT SIZE=3D2 FACE=3D"Arial">-- </FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Please see the official ORACLE-L =
FAQ:</FONT><U> <FONT COLOR=3D"#0000FF" SIZE=3D2 FACE=3D"Arial"><A =
HREF=3D"http://www.orafaq.com" =
TARGET=3D"_blank">http://www.orafaq.com</A></FONT></U>
<BR><FONT SIZE=3D2 FACE=3D"Arial">-- </FONT> <BR><FONT SIZE=3D2 FACE=3D"Arial">Author: Paul Drake</FONT> <BR><FONT SIZE=3D2 FACE=3D"Arial"> INET: drake_at_psscorp.com</FONT> </P>
<P><FONT SIZE=3D2 FACE=3D"Arial">Fat City Network =
Services -- (858) 538-5051 FAX: (858) =
538-5051</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">San Diego, =
California -- Public Internet =
access / Mailing Lists</FONT>
<BR><FONT SIZE=3D2 =
FACE=3D"Arial">---------------------------------------------------------=-----------</FONT>
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