ADSM-L

Re: file access time update

1997-04-03 17:19:49
Subject: Re: file access time update
From: Matt Anglin <anglin AT US.IBM DOT COM>
Date: Thu, 3 Apr 1997 17:19:49 -0500
Classification:
Prologue: From the desk of  Matt Anglin, ADSM Development
Epilogue:

Hi,

The "dsmmode" command allows you to alter the way a current process manipulates
an HSM-managed file system.  It applies to HSM files only, and is available on
platforms with HSM only.  When you use the -tp flag, you're telling it to
"preserve times".  So, before we access any file in an HSM-managed file system,
we'll save the times.  When you're done accessing them, we'll reset the times
to make it look like the process was never there.  The times in question are
Atime and Ctime.

Matt Anglin
ADSM Development



        owner-adsm-l @ VM.MARIST.EDU
        03-25-97 08:33 PM
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To: ADSM-L @ VM.MARIST.EDU@internet
cc:
Subject: Re: file access time update

Trevor Foley
26/03/97 14:19
From:
On:

I stumbled across a utility that comes with HSM called dsmmode. From the
documentation it appears that by issuing the command dsmmode -tp the access
times on files will not be changed when accessed by ADSM. I don't have HSM
so I haven't been able to play around with this. So I have some questions.

   Is dsmmode only available with HSM?
   Will dsmmode work on all flavours of Unix or only those that support
   HSM?
   Is it only the migrate command that will not update the access time or
   will it work with backup and archive as well?
   Has anyone used this?

regards,

Trevor
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