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Is system copy an idle choice for my scenario ? please suggest me

we are using ECC6.0 . our kernel , support packages are very old (2 .5 years back patches ) we don't have test /sandbox system . ours is a 3 system landscape . When the topic of upgrdation started , my suggestion is to add a sandbox to the existing landscape . my idea is , - Making a System copy from production to sandbox -so that i can upgrade each component in sandbox first , i can see the impact and knew the problems that would occur , which would make it easy while upgrdaing the production . is this idea good and correct ? please comment me based on your experiences ... in that case if i am going for a system copy then , - will i get all the clients in the production (or) is there any choice of selecting one client -can users use the production server during the system copy waiting for your suggestions and ideas

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  • Posted on Feb 25, 2009 at 06:54 AM

    Hi Susin,

    As per myself, your idea about testing on SAND Box is good.

    System copy means all the clients in production system will come.

    As system copy is done using PRD offline backup or Consistent Online backup(OFFline + Archives) which are always taken regularly...you implement those on SAND Box.Wont be affected on the actual PRD system.

    But before proceeding i request you to get full details about how to do System Copy and its Procedures. You need to follow some procedures to do like creating controlfile,etc

    Regards,

    Kalyan

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    • Former Member Former Member

      Using a sandbox for testing an upgrade is always a good thing.

      The process for a systemcopy is not so complicated. There are many links and doucments in SDN and SMP, a quick search especially in SDN will reveal many of them.

      To the question about client copy or system copy. I'd choose system copy, because then i can be absolutely sure, that everything is in the sandbox. I've never used client copy to build a sandbox. Maybe other people have good experiences with client copy for that purpose. Personally, i know nobody who did that.

  • author's profile photo Former Member
    Former Member
    Posted on Feb 25, 2009 at 08:44 AM

    do we need to have a same hardware resource for both source and target in system copy ?

    we are running on IBM p-series . PRD has 4CPU(1 TB) and 16 GB RAM .

    Our database monthly growth is 35GB .

    we have planned for the SANdbox with capacity of 1 cpu [200 GB] and 4 GB RAM

    in the above case can i still make a system copy ?

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    • Former Member

      Hi,

      >we have planned for the SANdbox with capacity of 1 cpu 200 GB and 4 GB RAM

      4 GB RAM is much too small for ECC6. Put the same amount of RAM as your Production serve to be able to know the effects of your upgrades.

      1 CPU : If it's not at least a 4 cores CPU, forget it and add cpus !

      You need at least 4 cpu cores : so 4 cpus with 1 core each, or 2 cpus with 2 cores each, or 1 cpu with 4 cores.

      My advice : don't be cheap with hardware for SAP softwares. Hardware may be expensive in the absolute way but compared to the TCO of SAP products, it's nothing. If your systems are so slow that you pay expensive consultants to wait for the machine, it's a bad idea !

      Regards,

      Olivier

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