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.
