HP 3000 Manuals

MPE/iX Quick Reference Guide

VSOPEN 

Reopens a volume set that has been closed with VSCLOSE. The volume set
becomes available for use again.  (Native Mode) 

VSOPEN volumesetname [[;PARTVS=] {USER  }]
                     [           {BACKUP}]
     VSOPEN ACCOUNTING_PAYROLL 

MPE/iX 5.0 Documentation