RMS SEQFILE WBH

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RMS_SEQFILE_WBH is a system parameter that enables or disables the RMS writebehind feature as a system default for any unshared sequential disk file if the file is opened for image I/O with write access specified. This parameter is available on Alpha and Integrity servers only. The possible settings are the following:

Setting Description
0 (default) Do not enable writebehind feature. Preserve prior behavior of using writebehind only if the user requests it by setting RAB$V_WBH in RAB$L_ROP.
1 Enable writebehind feature as system default, including the allocation of at least two local buffers.

RMS_SEQFILE_WBH is a DYNAMIC parameter.

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