SAS Safety Scalable Performance Data Server 4.5 Benutzerhandbuch

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In contrast, when you (the administrator) use OPTIONS=, a keyword that is syntactically
the same as ROPTIONS=, you are not overriding a user specification. Instead, you are
supplementing the user-specified options. In this case, if a user specifies an option, the
user's setting is implemented. If the user omits an option, your OPTIONS= specification
in the libnames.parm file is used.
System Administration recommendation: Do not specify DATAPATH=, INDEXPATH=,
and METAPATH= with OPTIONS=. If you use OPTIONS=, the disk allocation results
cannot be predicted. Instead, use ROPTIONS= to explicitly control disk usage at your site.
Recommended: Use ROPTIONS=
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