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Home -> Community -> Usenet -> c.d.o.server -> Re: 9iAS/10gAS infrastructure.
Telemachus wrote:
> RANT MODE ON
> Last couple of weeks I've been trying to put together an architecture for a
> new highly available production internet web services and database
>
> W2K is the platform so 10G AS not available.
>
> Great I thought I can use Oracle Maximum Availability papers
>
>
> I did - oh boy are there holes. Check MAA for details on IAS infrastruc HA -
> you won't find many.
>
> The database - yes - completely solid - these are technologies - RAC,Data
> Guard and Standby etc etc - great no problem I can live with them
>
> Switchover WANs network side firewalls - same here.
>
>
> Even OC4J islands - yes these I can live with.
>
> But have any of you really tried to make the 9iAS R2 infrastructure (SSO/
> Metadata and so forth ) - highly available ?
>
> The only 9 supported solution is via clustering ! The database can't be on
> RAC and it must be a 9.0 database ... Why oh Why ?
>
>
> (oh and unless you've patched you CAN'T CHANGE THE IP ADDRESS or the
> HOSTNAME ! OF THE SERVER ) and even if you do patch all you can change is
> the IP address
> [ this was closed as a documentation bug !!!! ]
>
> [ this one caught me when setting up a 9iAS box on my net for dispatch to a
> client site - the machine went down and joined their net and didn't work ]
>
>
>
> Then I read the 10g docs hoping for an early reprieve - but again we can
> see a thread here.
>
> in a 10G AS DR site the machines must all have the same amount of hardware,
> the same config and , and the same hostnames . There's a common something
> running through all this that leads me to believe there were some strange
> decisions made in the design process for the Infra. And it's not explained
> properly anywhere why this must be so. (the locked-in reliance on particular
> hosts - which can't be changed )
>
> COLD FAILOVER CLUSTERS.... groan.
>
> Come on isn't it just an LDAP directory + a database ? .. But hang on the
> LDAP directory's in the db too. Do tell Oracle.
>
> RANT MODE OFF
>
> PS
> Hi everyone nice to talk to you all again
>
> Telemachus.
If you are truly trying to create HA then lets review what you need.
I doubt the App Server software is the only issue. Is someone really putting up the several million dollars for the supporting infrastructure?
-- Daniel Morgan http://www.outreach.washington.edu/ext/certificates/oad/oad_crs.asp http://www.outreach.washington.edu/ext/certificates/aoa/aoa_crs.asp damorgan_at_x.washington.edu (replace 'x' with a 'u' to reply)Received on Mon Jan 26 2004 - 11:49:26 CST