[4183] in sapr3-soft
Re: R3 / NT / Oracle BASIS question
daemon@ATHENA.MIT.EDU (Jan van Rossum)
Fri Sep 17 10:07:47 1999
To: sapr3-soft@MIT.EDU
Date: 17 Sep 1999 08:48:06 -0500
From: Jan van Rossum <jvrossum@capitolonline.nl> (by way of SAP Moderator <sap-request@realtimeusa.com>)
Message-Id: <7rtgqm$sno@nexus.netconcepts.com>
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You can go the way of clustering, with tools from IBM or others.
A far better solution is an AS/400.
I ´n working as a basisconsultant and backup, online- reliabe everyday. On the
AS/400 this way of backup is called 'save while active'. Depending on the size
and nr of users you need a couple of minutes to reach a checkpoint. During
this
reach checkpoint process R/3 is disconnected from the database. This process
takes on daily base a bout 10 to 30 minutes.After the 10 to 30 minutes R/3
connects to the database again and is up and running but ...
The backup media still contains a reliable backup, that can be restored
without
the need of so called re-do files (on AS/400 called journal receivers).
When you are looking for reliability, scalability and availibility the
AS/400 is
far better than any other platform, even basisconsultants from SAP in the
Netherlands do agree.
Succes
Jan van Rossum
certified AS/400 BC
"Lord Korwin (by way of SAP Moderator )" wrote:
> Currently we backup our DB offline once a week... process involves manually
> shutting down 5 app servers, (all NT) then the central instance (on 1 node
> of a NT cluster) then the DB (on the other cluster node, using failsafe)....
> does anyone out there have any automation scripts they care to share with
> me? I have a good start, but shutting down the appservers sometimes
> doesn't work right.
>
> Is it even necessary to shut them down? I heard rumor that some customers
> do a shutdown immediate while Ci and apps are still online, leave them up
> during the backup in order to preserve the R3 cache... Does that sound
> feasible under NT or was this rumor based on a very large mainframe shop?
>
> Anyone out there doing online reorgs of the database? Any opinions on the
> BMC tools?
>
> Currently our downtime is just 6 hours a week.... the business is pushing us
> towards 6 hours a month...
> Anyone else out there pushing NT into the "high availability" 24x7 arena
> besides us?
