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Article #1215Re: How to read/write VMS (RMS?) disk blocks asynchronously
From: Terry Kennedy, Operations Mgr.
Date: Wed, 12 Aug 1992 16:12
Date: Wed, 12 Aug 1992 16:12
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In article <MRL.92Aug11103051@sun4.uai.com>, mrl@uai.com (Mark R. Ludwig) writes: > I've read much of the RMS Reference, and concluded that the > asynchronous support there is quite limited, because it only allows > one operation at a time (on a FAB, or RAB, I forget exactly which). > For our application it is not feasible to have multiple FABs or RABs > for a single file. Look at the read-ahead and write-behind options and the multibuffer count. In VAX C you can specify these options in the fopen() statement as rah=n, wbh=n, mbf=n. These must exist in RMS, rather than being C-specific. Try looking in the Master Index for these items. Terry Kennedy Operations Manager, Academic Computing terry@spcvxa.bitnet St. Peter's College, Jersey City, NJ USA terry@spcvxa.spc.edu +1 201 915 9381
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arc1-ca.pugleaf.net!sparky!uunet!usc!cs.utexas.edu!qt.cs.utexas.edu!yale.edu!jvnc.net!darwin.sura.net!gatech!rutgers!spcvxb.spc.edu!terryReferences:
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Path: arc1-ca.pugleaf.net!sparky!uunet!usc!cs.utexas.edu!qt.cs.utexas.edu!yale.edu!jvnc.net!darwin.sura.net!gatech!rutgers!spcvxb.spc.edu!terry From: terry@spcvxb.spc.edu (Terry Kennedy, Operations Mgr.) Newsgroups: comp.sys.dec Subject: Re: How to read/write VMS (RMS?) disk blocks asynchronously Message-ID: <1992Aug12.121243.3572@spcvxb.spc.edu> Date: 12 Aug 92 16:12:43 GMT References: <MRL.92Aug11103051@sun4.uai.com> Organization: St. Peter's College, US Lines: 15