Checks
In this roadmap step, SUM checks if your system fulfills the requirements for the update and migration procedure (for example, whether the required free space is available).
The following actions are carried out:
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Calculation of the space for the shadow system
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System health checks (such as nametab, transport system)
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Checks of relevant tool and system parameters
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In the phase MIG2NDDB_HANA_BW_PARAMS, which is relevant for the usage of specific reports related to SAP BusinessObjects Business Intelligence (BI), you provide parameters for SAP BW-specific cleanup tasks. This includes
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temporary BW query bookmarks
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sent BW query bookmarks
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BW traces
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BW statistics
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Temporary database space, which is required for the shadow system and is calculated during the execution of the roadmap step Checks, is too generous.
You can use the command <SUM directory>/abap/bin/SAPup dmpspc to check the used space at different points of time.
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If you perform a conversion to SAP S/4HANA 1909 or a higher version, the recommended security profile parameters of the SAP kernel are automatically written and stored in the default profile file \DIR_PUT\sapnames\prod\DEFAULT.PFL /DIR_PUT/sapnames/prod/DEFAULT.PFL of the target system according to SAP Note 2926224
. You are informed in a
dialog on the SUM UI that you can opt out from this feature and therefore
skip the setting of the security parameters. This is, however, not
recommended and only necessary for compatibility reasons.
