Re: Zero Downtime Upgrade and Migration
- From: Gints Plivna <gints.plivna@xxxxxxxxx>
- To: Richard.Goulet@xxxxxxxxxxx
- Date: Wed, 13 Oct 2010 17:24:54 +0300
Usually when customer understands the costs of zero or almost zero
downtime, the mega super critical application becomes not so critical
and quite many hours or even a few days are discovered for a downtime
;)
Been there at least once and heard about that even more times :)
Gints Plivna
http://www.gplivna.eu
2010/10/13 Goulet, Richard <Richard.Goulet@xxxxxxxxxxx>:
> Avadhani,
>
> What your client is asking for is completely impossible. For starters
> your direct upgrade part is 8.1.7 (or lower) -> 8.1.7.4 -> 9.2.0.8 -> 11.2
> and your moving os platforms which means a transportable database
> migration. Way too many moving parts. What is the size of the source
> database? If it's small enough you can go the export/import route which at
> least minimizes the downtime. But your not going to get to 0 on this one.
>
>
> Dick Goulet
> Senior Oracle DBA
>
>
> ________________________________
> From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx]
> On Behalf Of Avadhani mys
> Sent: Wednesday, October 13, 2010 5:45 AM
> To: ora-apps-dba; oracle-l; oaugnetdba-on@xxxxxxxx
> Subject: Zero Downtime Upgrade and Migration
>
> Hello Gurus,
> Please let me know any suggestions other than Oracle-Golden-gate to achieve
> Zero downtime migration.the challenge is we need to Upgrade and
> Migrate Oracle 8i database [Upgrade to 11gR2 and migrate to Sun-Solaris
> from AIX]. This is very critical application and client needs Zero
> downtime.
> Please let me know your valuable suggestions on this. And also please let me
> know your valuable inputs/links on the documents on using Oralce Golden gate
> to achieve Zero downtime upgrade and migration
> Thanks in Advance.
> Regards,
> Avadhani
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